RC FlightPath Article Collection

Scorpion Motors Downloads

Calculations tools , Programs , Drivers , Manuals & Guides , etc

Kontronik Pyro 750-50

Kontronik Pyro 750-50 Motor Specifications, etc

Motor Laminations

Why 0.1mm Stator Laminations Matter in RC Helicopter Motors, etc

Brushless Motor - How they work BLDC ESC PWM

Video Presentation , YouTube video (embeded)

Motor sizing and planning

RC helicopter governor headroom and max rpm planning, etc

Motor Windings - 1Y vs 3Y

Detailed Specs, What Are Laminations?, Why 0.1mm Thickness Is a Big Deal, Why It Matters for RC Helicopters,

Motor Commutation

YouTube video (embeded)

Motor Selection

Main Rotor RPM Trade-offs , ESC Setup Modes , Calculating Maximum Main Rotor RPM , Optimizing and Tuning , etc

Brushless Motors Explained

YouTube video (embeded)

flying over people

What's allowed? , Flying Over People: , Flying Over Moving Vehicles: , etc

Complete Guide to the Part 107

Strategy for Studying, Preparing, and Passing , Available Study & Preparation Apps , Test Costs and Retake Fees , Main Components of the Exam , etc

FAA Drone Regulations Object Proximity Flying

Executive Summary & Federal Scope , Operational Rules by Object, Structure, and Environment , Inter-State Differences vs. Federal Preemption , Who Currently Polices Drone Regulations? , etc

Advanced UAV Architecture PX4 ArduPilot and GCS

The Core Autopilots: PX4 Pro vs. ArduPilot Firmware Architecture , Controller UIs: Mission Planner & QGroundControl as Management Layers , Hardware Interfacing: UARTs, Serial Telemetry, and Companion Computers , Network Architecture: Cellular Teleoperation and Remote Ingestion , etc

ArduPilot Options

Overview of Ardupilot Auxiliary Functions, Master Auxiliary Function Index, etc

DYS F4

What "10% headroom" should refer to, Practical recommendation, Quick sizing checklist, Example calculation,

DYS F4 PRO V2

Comparison Table, How Commutation Works, Types of Commutation, Why It Matters,

DYS 4IN1 F20A

Specification and Features, etc

drone // MOTORS // T-MOTOR_F80

Real-World Applications, Video Example, Step 1: Active Video & Practice Loop , Step 2: Master Sectional Chart Decoding ,

Drone PID Tuning I-Term

YouTube video (embeded)

How Open Source Created the FPV Drone

YouTube video (embeded), 01 The Software Foundation: From Wii MotionPlus to Betaflight , 02 The Turning Point: Closed Hardware, Regulations, and Dual-Use Sanctions , 03 Enter OpenDrone: Open-Source Hardware for Everyone , 04 Crowdfunding, Preorders, and the Future of Manufacturing

Smart Drone - The Ghost 4 Explained

YouTube video (embeded)

25 Drone Comparison

YouTube video (embeded)

Main Drone Components Explained

Core Frame & Power Architecture , Flight Control & Power Processing Stack , Propulsion System , Radio Control & FPV Video Transmission , etc

How to plan your drones power and propulsion

Introduction to eCalc (ecalc.ch) , Platform Architecture & Specialized Modules , Planning & Component Selection: Balancing Thrust vs. All-Up Weight (AUW) , Mathematical Modeling & Thrust Formulations , etc

Building a Long Range Drone

Executive Summary & The Long-Range Philosophy , Phase 1: Planning & Frame Selection , Phase 2: Propulsion & Electronics Procurement , Phase 3: Energy Storage Strategy (Li-Ion vs. LiPo) , etc

Autonomous Mission Prep for Corporations

01 Regulatory Compliance: FAA Filing & Airspace Authorization , 02 Mission Management & Flight Logging , 03 Comprehensive Corporate Field Packing List , article References & Regulatory Portals , etc

simplify h7 55A stack

ARM Cortex M7 Power -- What!?!?!, Core Hardware Architecture, Technical Specifications, Integration & Build Considerations, etc

Speedybee F405 V4 FC Stack

Power?!, Core Hardware Architecture, Technical Specifications, Integration & Build Considerations, etc

Purpose of TailRotor

YouTube video (embeded)

Industry Trend

Breakdown of Evidence & Primary Drivers , Massive Battery Advancements , A Bifurcated but Highly Dedicated Market , etc

Goosky RS5 Ultra 550

Executive Technical Summary, Rotor Head & 1:1 FBL Geometry, Main Gearing & Reduction Ratios, Tail System & Automatic Belt Tensioner, etc

Goosky RS4 Venom Technical Dossier

Aircraft Overview & Class Specifications , Mechanical & Frame Architecture , Power System & Electronics Integration , Flight Dynamics & Tuning Profile Notes , etc

Goosky RS7 Ultra 700

Overview , Contents , Core Technical Specifications , Airframe Dimensions , etc

Where Did The Boom Supports Go

The Evolution: Who Started It, and Who Perfected It? , The Physics: How Engineers Compensate for Missing Struts , Discussions Across Forums & Community Newsboards , Retrofitting Older Models: Can You Strip Boom Supports from Legacy Helis? , etc

RC_Helis // history

The Pioneer Age — Pre-1970, YouTube video (embeded), YouTube video (embeded), The Birth of the RC Helicopter — 1970–1979, YouTube video (embeded), Growth, Competition & 3D — 1980–1989, YouTube video (embeded), The Electric Revolution — 1990–2003

DFC

What DFC Actually Is (and Is Not), Basic DFC Linkage Geometry, Comparison to Modified Bell-Hiller Flybarless Systems, Flight Stability and Electronic Control, etc

Re-assigning Blade SAFE Mode

Why Decouple SAFE Mode? , Default Channel Mapping vs. Decoupled Mapping , Step-by-Step Programming Guide , etc

Spektrum DX6 SAFE Panic Mode Configuration Guide

How Horizon’s SAFE System Works on These Helis , Step-by-Step DX6 Configuration , Verifying the Setup (Crucial Step) , etc

Blade S3 Separating Pitch Throttle

Why Throttle and Pitch Seem Tied Together , Channel Mapping & Functions (Aux 5 & Aux 2) , etc

Blade Fusion 700 Technical Dossier

1. Executive Technical Summary , 2. Airframe Dimensions & Structural Layout , 3. Rotor System & Head Architecture , 4. Transmission and Reduction Ratios , etc

What is AS3X SAFE

The Technical Differences , Technical Breakdown , Comparitive Overview , Visual Reference & Demonstration , etc

Programming PIDs with Blade Helis

How the Flight Controller Works: 3-Axis Gyros & PID Control Loops, YouTube video (embeded), Accessing Tuning Parameters via Forward Programming, YouTube video (embeded), Crucial Requirement: Flight Mode-Specific PID Tuning

Blade 235 CP

Introduction & Background, Key Upgrades Over the Blade 230 S, Specifications Overview, Completion Levels & Transmitter Integration, etc

Proper RC helicopter setup for neutral point

Prepare the transmitter and model, Center/level the servo arms, Level the swashplate (X and Y axes), Set the driver arms, etc

An Improperly setup rotor head

Cyclic Pitch Asymmetry (Differential Cyclic Response) , Geometry Binding and Limited Pitch Travel Range , Progressive Pushrod Binding and Ball-Link Stress , FBL Unit Calibration and PID Confusion , etc

Tail Rotor Degree Offset

The Origin of the Pitch Offset Recommendation, How Modern BeastX Documentation Handles Tail Setup, etc

Rotor Blade Tightness

YouTube video (embeded)

Micro Mini Helicopter Revolution

The Micro & Mini 3D Revolution: Direct Drive, Precision FBL, and the New Era of Pocket-Sized Performance, etc

XLPower Stratos 700 Technical Dossier

Executive Technical Summary, High-Rigidity Main Rotor & Control Geometry, Drivetrain & One-Way Bearing System, Reinforced Tail Drive & Boom Structure, etc

XLPower Stratos 200 Technical Dossier

Executive Technical Summary, True 1:1 Head Geometry & Dual Damping, Gearless Drive & Integrated Electronics Frame, Fast-Service Plug-In Tail & Motor Layout, etc

SAB Helicopters History

Redirecting to https://www.modelaviation.com/sab-goblin-wang..., etc

SAB IL Goblin 590

Executive Technical Summary , Airframe Dimensions , Rotor System & Head Architecture , Transmission and Pulley Ratios , etc

SAB IL Goblin 700

Overview , Contents , Core Technical Specifications , Airframe Dimensions , etc

Mod Gear Geometry Explained

The Beginner Level: What Does "Mod" Actually Mean? , The Intermediate Level: Calculating Pitch Diameter & Center Distance , Advanced Topics: Straight Spur vs. Helical Tooth Geometry , Comparative Geometry: Smoothness vs. Strength Matrix , etc

Hiller Bell Rotor

YouTube video (embeded)

Align TB70 V2 Technical Dossier

Contents , Core Technical Specifications , Airframe Dimensions , Main Rotor System , etc

Align TRex450 Revisions

, , Master Drivetrain Specification Table, , etc

Align Part Revisioning

Brief history: how Align became “the” heli brand , Rapid product cycles and “public testing” , Part versioning: frames, gears, heads, and tails , How the community became the test lab , etc

Align T Rex Sizes

Step 3: Test Readiness Threshold , People and Crowds (14 CFR § 107.39) , Moving Vehicles and Traffic Networks , Bridges, Buildings, and Infrastructure ,

Align TRex500 Revisions

T-Rex 500ESP (2008) , T-Rex 500EFL (2011) , T-Rex 500L (2014) , T-Rex 500X (2016) , etc

Align TRex450 Gear and Drivetrain Specs

Master Drivetrain Specification Table, Engineering Evolution & Gear Module Breakdown, Summary & Quick Reference, etc

rc helicopter history

Waterways, Oceans, Rivers, and Pools , Parks, Golf Courses, and Recreational Grounds , Military Installations and National Security Assets , Specification:,

8S vs 12S

The 12S Trap vs. The 8S Lean Power Paradigm , Ohm’s Law and Thermal Dynamics: Why 155A Succeeds , The Magic of Mass: Why Lighter is Wilder on 700s , Motor Selection: The 700–900 KV Sweet Spot , etc

Crash Cost Guide

Crash Damage Layers, What to do when you crash (COVERED IN RC FLIGHTPATH FLIGHT SCHOOL TRAINING):, Crash Cost Estimation Table, Crash Cost Examples, etc

Why Both Gemini and Orion

XT60 Battery Connector , Power Capacitor , Motor Wires , Flight Controller (FC) ,

Tron 5.5E Orion 550

Executive Technical Summary , Airframe Dimensions & Structural Layout , Rotor System & Head Architecture , Transmission and Reduction Ratios , etc

Tron 7.0 Elite

Executive Technical Summary , Airframe Dimensions , Rotor System & Head Architecture , Transmission and Reduction Ratios , etc

Tron 5.5E Gemini 550

Executive Technical Summary, Airframe Dimensions & Structural Layout, Rotor System & Head Architecture, Transmission and Reduction Ratios, etc

Helicopter Vibrates During Spool Up

Beginner Forward: What Is "Spool-Up Vibration"? , Normal Spool-Up Vibration , Blade Tightness: The #1 Cause of Spool-Up Shaking , Blade Balance & Tracking , etc

RealFlight Trim Problems

Root Cause Analysis, Recommended Solution, Reinstallation consideration:, Why a Standard Reinstall Falls Short, etc

List of RC Simulators

4-in-1 ESC (Electronic Speed Controller) , Brushless Motors (Motors 1–4) ,

propCalc / setupFinder ,

xcopterCalc ,

Linking ELRS to HeliX

heliCalc ,

perfCalc & w&bCalc , Why Thrust-to-Weight Ratios Dictate Power Delivery , STM32H743 Flight Controller,

Blade Grip Control Arm Alignment

What This Method Does, Tools and Parts You'll Need, Step-by-Step Procedure, Interpreting the Results, etc

How-Tos // BGCA

What This Method Does, Tools and Parts You’ll Need, Step-by-Step Procedure, Interpreting the Results, etc

Connector Designations

55A 4-in-1 ESC Power Stage, F405 V4 Flight Controller, BLS 55A 4-in-1 ESC Power Stage, Airframe & Chassis Construction ,

High Amperage Connector Solutions and Comparisons

Executive Summary & Pragmatic Overview , Mathematical & Physical Foundations , Detailed Interconnect Architecture Breakdown , Comprehensive Technical Ranking & Specifications , etc

XT Connectors

The Comprehensive Guide to XT Power Connectors: XT30, XT60, and XT90, Origin & Historical Context, Core Advantages of XT Connectors, Technical Breakdown: XT30, XT60, and XT90 Specifications, etc

XT60 vs XT90 vs EC5 Comparison

Power Connector Showdown: XT60 vs. XT90 vs. EC5 , Overview of Contenders , Direct Comparison Table , Key Engineering & Usability Differences , etc

JST Connectors

Comprehensive Technical Guide to Micro-Pitch & Standard JST Connectors in Electronics & RC Systems, JST Series Quick-Reference Matrix, Detailed Breakdown of Individual Connector Types, Engineering Pitfalls & Best Practices, etc

QS8 AS150 RC PRO PLUS Connectors

QS8 vs Amass AS150, RCPROPLUS Supra X Series Comparison, PRO-S7 vs QS8 vs AS150, etc

HobbyWing ESC Default Timing

The Core Definition , 🧠 What 15° Timing Actually Does , 🔥 How Timing Affects Your Heli Specifically , etc

Difference between Digital and PWM

Overview, Protocol Fundamentals, Summary Table - Digital vs PWM ESC Protocols, The Empirical Differences, etc

Debugging Timing Problems

The Problem With 25° Timing at Startup , Recommended Setup Adjustments , Beyond Timing: Check Thermal and Mechanical Load , Summary Verdict , etc

Hobbywing Diff ExtGov vs FixedWing

Core Architectural Differences , "Fixed Wing" Mode: Direct Linear Drive , "External Governor" Mode: Designed for FBL Control , Summary Verdict , etc

Dual Slow Spool Ups

The Risk of "Dual Spool-Up" Conflict , How "External Governor" Mode Solves the Conflict , Recommended Configuration Best Practices , Summary Verdict , etc

Kill Switch for Backup Capacitor

The History: Why RC Pilots Started Using Backup Power , Why a Switch / Kill Mechanism is Needed , Advanced Technical Notes: ESR, In-Rush Current, and Diodes , Summary Verdict , etc

ESC Telemetry Wiring Protocols EdgeTX Setup and Cu

What is ESC Telemetry and Why Is It Essential for Beginners? , Hardware Wiring and Telemetry Signal Architecture , Signal Protocols: How the Telemetry Wire Functions , Discovering and Configuring Telemetry Metrics on RadioMaster (EdgeTX) , etc

Best Selling Computer brands

YouTube video (embeded)

x86vsARM difference explained for Beginners

YouTube video (embeded)

Dell Latitude Laptops Budget HP

Dell Latitude Laptop Comparison , etc

Business Tower Specs

Form Factors That Work , Models You Should Buy (If Available) , Models You Must Avoid , Store Locations (San Fernando Valley) , etc

SD Cards on Spektrum

01 Why the SD card matters , 02 Common Spektrum families and SD card basics , 03 Understanding FAT vs FAT32 vs exFAT , 04 Choosing the right SD card , etc

The difference between Spektrum and RadioMaster

Spektrum AirWare: The Tailored Appliance , EdgeTX: The "Brick and Mortar" Engine , Architectural Comparison , Video Examples Highlighting differences b/n these Philosophies , etc

History of Kraft vs JR vs Futaba

YouTube video (embeded)

Transmitter Trays Consoles

Rotor Head Geometry , Drivetrain & Tail System , Motor & ESC Selection , FBL Gyro & Radio Compatibility ,

Spektrum Model Templates Downloads

The Big-Model Originators: SAB Goblin & Mikado Logo , The Mid-Size & Micro Pioneers: Oxy Helicopter (Lynx Heli Innovations) , The Broader Industry Follow-Through , The Advantages Celebrated by Pilots ,

Horizon Hobby

YouTube video (embeded), 🏢 Corporate Overview & Industrial Evolution, 🌐 Global Footprint & Manufacturing Operations, 📦 Do All Horizon Products Originate From One Country?, 🧩 Why Operations Are Spread Nationally & Internationally

Great Planes

YouTube video (embeded), 🏢 Corporate Overview & Ownership History, 🌐 Manufacturing Evolution: From Domestic Balsa Mills to Global Sourcing, 📦 Did Great Planes Products Come From One Country?, 🧩 Why the Shift Occurred

Tower Hobbies

YouTube video (embeded), 🏢 Corporate Overview & Ownership History, 🌐 Sourcing & Manufacturing Operations, 📦 Did Tower Hobbies Products Come From One Country?, 🧩 The E-Commerce Shift & Horizon Acquisition

History of Align

Align Factory Tour with Tareq Alsadi, YouTube video (embeded)

History of DJI

YouTube video (embeded), 1. Origins and the $30,000 Single-Rotor Era (2006–2008) , 2. The Multi-Rotor Revolution & The Rise of Brushless Motors , 3. Key Technological Pillars of DJI Flight Control , 4. Entering Cinema Production & The Consumer Market (2011–2013)

FBL // install

The Criticisms & Skepticism ,

Article Highlights:, Arthur Young Pioneers Flybar Stabilization with RC Models, Hiroshima Spinner, Ltd. Founded — Future RC Giant,

Diff between FC6250HX and FC6350HX

The Tethered Era — Instability Unsolved, Futaba Enters the Radio Control Market, Dieter Schlüter Begins His Quest, The World's First Successful RC Helicopter — The Schlüter Cobra,

Advanced Cyclic and tail rotor setup

YouTube video (embeded)

ELRS V3 Rotorflight Setup Guide

Overview: Why ExpressLRS V3 for Rotary Wing Aviation? , Hardware Wiring & Serial UART Configuration , ELRS Packet Rate & Telemetry Ratio Matrix , Step-by-Step Setup Roadmap , etc

Rotorflight 4.7 Tune Advisor

What is Rotorflight 4.7 Tune Advisor? , How Tune Advisor Evaluates Flight Behavior , Step-by-Step Field Tuning Workflow , Advanced Benefits: Altitude and Atmospheric Compensation , etc

Radiomaster Nexus Receiver Wiring

Wiring an External Receiver , Wiring ESC Throttle & Telemetry , Software Configuration in Rotorflight , etc

Download - Rotorflight Blackbox Explorer

Redirecting to https://github.com/rotorflight/rotorflight-blackbox/releases/..., etc

Nexus vs Nexus-X vs Nexus-XR

Key Generations & Evolution , Comparison Table , How Nexus is "Optimized for Rotorflight 2.2" , Dual SX1281 / RP4TD-M True Diversity , etc

What is TALY TTA

Introduction to Motorized Tails & TTA, The Physics Problem: Asymmetric Authority, Prerequisites Before Tuning TTA, Step-by-Step TTA Tuning Protocol, etc

Download - Rotorflight Configurator

Redirecting to https://github.com/rotorflight/rotorflight-configurator/releases..., etc

Rotorflight 4.7 Wizard First Look

Overview & Paradigm Shift , Experience Level Modes Beginner, Intermediate, and Advanced , Wizard Breakdown , Matrix & Workflow Enhancements , etc

Rotorflight DSM vs DSMX setups

Resolving the "Missing Channels Beyond AUX1" Issue , Long-Term Recommended Receiver Architecture , etc

Rotorflight OpenSource vs Proprietary HighEnd FBLs

RotorFlight v2.3 vs. Proprietary FBL: Is Open-Source Finally Killing High-End Proprietary Flight Controllers? , The Rise of RotorFlight v2.3: Why the Hype is Real , Proprietary Ecosystems: The Case for Plug-and-Play , Head-to-Head Comparison: Open-Source vs. Proprietary , etc

Comparing Modern vs Legacy Flight Controller Hardware

High‑Level Summary , Deep Technical Breakdown , IMU Technology: From “Good Enough” to High‑Fidelity , Signal Protocols: Analog vs Digital , etc

rotorflight-tuning-manual

Contents , 00 The Goal - Simplified , 01 Filters come first , 02 The tuning order matters , etc

mcu vs cpu

First Untethered Electric, Inverted Flight & the Futaba FM Radio, Ulrich Baudrexel Performs First Public Inverted Flight, Mike Mas Masters "Switchless Inverted" Flight, Gorham Model Products (GMP) Founded — America's RC Heli Giant,

Demystifying IMUs in Flight Controllers

How the IMU Interacts with STM32 Hardware, Why Gyroscope Performance Matters, Key Factors Affecting Gyro Performance, IMU Comparison for Flight Controllers, etc

FBL

What is a Flybarless (FBL) System?, Legacy Proprietary FBL Systems, The Open Source Revolution: RotorFlight, IMU & MCU Hardware — Understanding the Components, etc

imu-table2

IMU Comparison , etc

iKONs sensing divisor

The Problem The Blind Governor , Why the Sensing Divisor Was "Invented" , The Math Behind the Magic , From Motor RPM to Rotor Head RPM , etc

Understanding iKON Profiles

1. What Are iKON Profiles? , 2. Why Profiles Are Critical for Flight Tuning & Diagnostics , 3. Profile Parameter Breakdown , 4. Diagnostic Methodology: Using Profiles to Solve Vibration & Oscillation , etc

Control Theory

Classical Control (Traditional Foundation), State-Space & Modern Control, Optimal Control, Robust Control, etc

PID Maneuvers Heli

TSK — Making a new Legend, GMP Competitor — Aerobatics Go Mainstream, Schlüter Partners with Robbe — Scale Era, Horizon Hobby is Founded,

PID Maneuvers Drone

Hirobo Shuttle — The Trainer That Taught a Generation, US Team World Championship — Gorham, Youngblood & Mann, Miniature Aircraft — The makings of Royalty, Kyosho Corporation — Business & RC Origins,

FBL // pid-tuning

What is PID Tuning and Why Does It Matter?, Understanding P, I, and D (The Easy Way), The Car Driving Analogy, Quick-Reference Comparison Table, etc

RotorFlight Tuning Boost

What is Boost (B-Term)? , Key Concepts: Gain and Cutoff , Tuning Methodology , Symptoms of Incorrect Settings , etc

Cyclic I-Term Thresholds

How High Can You Push Cyclic Integrals (Roll/Pitch)? , Recommendation , etc

Tracking Vibrations in Blackbox

YouTube video (embeded), Rotorflight Filter Tuning Table: 100 RPM - 4000 RPM (Hz to RPM Conversion)

RotorFlight-video-series

GMP Ceases Trading — End of an American Era, 2.1. Constrained Upper Link Ends, 2.2. Lower Link Ends and Swashplate Ears, 1. Assign Channel 5 to Your Flight Mode Switch ,

RotorFlight Tuning HSI

High Speed Integral Offset Gain (HSI Offset Gain) — Tuning Summary , A Tuning example with Gemini: , A video tuning example , YouTube video (embeded)

PID Tuning - Benjamin Britton

YouTube video (embeded), YouTube video (embeded), Log Analysis and Filtering , Tuning Changes and Observations , Flight Characteristics

PID Mathematical Equations

Example: PID Tuning Equation, Description of Terms:, Visualization of Feedback Loop:, etc

Identifying Blackbox Trace Behavior

D-Term Tuning Trace Identification: , P-Term Tuning Trace Identification: , I-Term Tuning Trace Identification: , YouTube video (embeded), YouTube video (embeded)

Initial Tuning Analysis-1

What is Obvious & Evident in the Log, What to Do to Fix It, Section 3: Addendum — What Happens When You Make These Adjustments?, etc

Initial Tuning Analysis-2

What the Graph Shows During the Profile Switch, What This Tells Us About Your Setup, Conclusion, etc

RotorFlight Tuning Filters

Overview of Rotorflight Filter Types & Parameters, Demystifying Filter Tuning Tutorials: Why Numbers Aren't Always "Plugged In", How-To Guide: Analyzing Rotorflight Blackbox Logs & Setting Up Filters, etc

FBL // pid-tuning // rotorflight

About this article.. and about you., If you're still here.., YouTube video (embeded), Before we begin.., Understanding the P/D relationship

Decoding Rotorflight Profile Parameters

What Increasing Overall PID Bandwidth Does , What Parameters Involving "Cutoff" Do , What Parameters Involving "Gain" Do , etc

Tuning for Locked In Feel

Why iKON2 Feels So Locked In , Targeted Adjustments to Lock In Your Rotorflight Profile , Recommended Next Step , etc

PID Tuning - Jaiwen Bao

YouTube video (embeded)

RotorFlight 2.3 Governor Modes

Key Changes to Throttle Type , etc

Reviewing Jaiwens Profile Settings

Session #1, Cyclic Axis Divergence (Roll vs. Pitch), Tail (Yaw) Dynamics: A Complete Paradigm Shift, Precomps and Cross-Coupling, etc

Scaling Down PD retaining ratio

The Direct Behavioral Effects , Why Preserving the Ratio Doesn't Save the Feel , Summary , etc

links

YouTube video (embeded), YouTube video (embeded), YouTube video (embeded), YouTube video (embeded), YouTube video (embeded), YouTube video (embeded), YouTube video (embeded), YouTube video (embeded), YouTube video (embeded), YouTube video (embeded)

RotorFlight Tuning FF

What is Feed-Forward?, The Relationship Between Feed-Forward and "Locked-In" Feel, Tuning Methodology, Maneuvers to Identify Deficiencies, etc

Pitch D-Term Noise and Cutoff Evaluation

Analyzing the Noise Graph , Evaluating the D-Term Cutoff (15Hz vs. 25Hz) , Recommended Adjustment , The Setpoint (Purple) vs. Gyro (White/Grey) Tracking , etc

Real PID Example Equations

Error Calculation , Proportional (P) Term , Derivative (D) Term , Feed Forward (FF) , etc

PID Tuning - Jonas Wackershauser

YouTube video (embeded), Main Rotor Tuning , Tail Rotor Tuning , Refinement Tips

Retuning after Thrust BRG Replacement

Where to Start 1st: The Derivative (D-Term) & Bandwidth , Step 2: Re-evaluating Feed-Forward (FF) , Summary: Your First Immediate Move , etc

SIMPLE Electric Throttle Governor Setup - Rotorflight 2.3

YouTube video (embeded)

RotorFlight Tuning ITerm Relax

, ⚙️ Comparison: I‑Term Relax vs HSI Offset Gain , A video tuning example , YouTube video (embeded)

Spirit FBL Setup Tutorial by Dima Vinar

YouTube video (embeded)

spirit FBL geolink

Sensors , etc

KBar Flybarless Gyro Guide

Introduction & Background, Hardware Variants & Technical Teardown, Software Setup & Version Challenges, Wiring and Receiver Integration, etc

imu-table

2. Set Up the "Panic" Mix , What Does Aux 5 Do? , Why Is There No Aux 2? , Main Rotor Head,

VStabi Flight Tuning

1. Ground Rules & Mechanical Pre-Flight Check , 2. Master Flight Tuning Roadmap (Step-by-Step Sequence) , 3. VBar Parameter Glossary Quick Reference , 4. Summary of Community Consensus , etc

Addendum Vbar Vibration Analysis

1. The Mathematics of Frequency Isolation , 2. Frequency Range Mapping Table , 3. Practical Field Isolation Procedure (Step-Down Teardown) , 4. References & Sources , etc

Baud Rates Explained

YouTube video (embeded)

Modulation Amplitude Phase Attenuation in ELRS

YouTube video (embeded)

How Spread Spectrum Works

The Conception and History , How Spread Spectrum Works , YouTube video (embeded), YouTube video (embeded), The Handshake: How the Binding Process Works , Behind the Scenes: Normal Flight Operation

Serial Communication

YouTube video (embeded)

Why Firmware Flashing Fixes Things

What Types of Devices This Article Applies To, Firmware Controls the Hardware Handshake, Flash Memory Corruption, Driver-Firmware Mismatches, etc

PWM Explained

A Timed Pulse Protocol , A Cheap Digital-to-Analog Converter , When to Use Each , Side-by-Side , etc

UART Explained

Introduction and Historical Context, Why It Was Developed, Core Technical Principles: How It Works, Detailed Protocol & Packet Structure, etc

Futaba GY401

Step 1: Initial Transmitter & Mechanical Preparation, Step 2: Mechanical Centering & Limit Setup, Step 3: Trimming Mechanical Neutral (Hover Test), Step 4: Storing Neutral into AVCS / Head Hold Mode, etc

Heading Hold

Yaw Rate (Normal) Mode vs. Heading Hold (AVCS) Mode, Key Technical Differences & Comparison, Bench Behavior & Troubleshooting Common Questions, Practical Setup & Pre-Flight Tips, etc

HiTec HG5000

YouTube video (embeded), YouTube video (embeded)

AMA Document Repository

AS3X (Artificial Stabilization – 3-aXis), SAFE (Sensor Assisted Flight Envelope), 1. Sensing Hardware & Control Loops, 2. Flight Characteristics & Pilot Input,

Useful AMA Docs

How Flight Mode Switching Affects PIDs, Key Mechanical Goal, 1. Introduction: The Evolution of Micro 3D Flight, 2. Manufacturing Purity: Tighter Tolerances and Modern Materials,

Carson Airfield Closes

Closure Details , Alternative Nearby Options for Carson Pilots , etc

About Us

What RC Flightpath Is About , About Bert Instructor, Tuner, and Builder , Mission Serving the RC Community , Site Content and Resources , etc

Flameout Debug

Symptom Summary , Core Interpretation , Most Likely Causes , What Is Unlikely to Be the Sole Cause , etc

Throttle Jockey Governors

The Throttle Jockey Governor: History, Architecture, and Technical Mechanics, etc

test vs sample

Contents , h2 The H2 header , article References , etc

LiFePO4 lowest Voltage

The General Voltage Thresholds , Compared to Regular Lithium Ion , Practical Takeaway , etc

LIFEPO4 Reviving

What happened: BMS low-voltage protection and 0V at the terminals , Safely waking a LiFePO4 pack from BMS low-voltage lockout , Switching to normal LiFePO4 charging after revival , Using a car and RC charger as a field charging setup , etc

LiFePO4 100Ah battery charge estimation chart

3. The Brains and the Brawn: Precision FBL & Direct Drive, 4. Micro & Mini 3D Platform Comparison, 5. Conclusion: Why Now is the Best Time to Fly Micro, Main Rotor ,

8S Lipo Availability

The 8S Sourcing Landscape , 8S LiPo Manufacturer & Supplier Directory , Why Source Dedicated 8S Packs? , etc

Lipo Brand Comparison 2023

Straight Cut (Spur) Gears , Helical Cut Gears , , ,

Lipo Brand Comparison 2026

75A 700 - 800 gram , 75A 805 - 900 gram , 75A 905 - 1500 gram , 100A 700 - 800 gram , etc

LiPo Internal Resistance

The Basics: What is IR and Why Should You Care? , Diagnostics: Reading Milliohms (mΩ) on Your Charger , Benchmark Reference Table: What is "Good" vs "Dead"? , Deep Tech: The Electrochemistry & Calculation Formulas , etc

Min Max voltages

, , , ,

Pulse Gens Ace and Tattu

Brand Overview, Series-Level Differences, etc

Lipo Fire Incidents by Cause

YouTube video (embeded), YouTube video (embeded), Fire during charging:, Fire damages garage while charging pack. (7), Fire in Basement - (136), Fire from pack damage:

Max Voltage

LiPo Cell Voltage Ranges, Why 4.2V is the Limit, Tips for Safe Charging, etc

Guide to Lipos and Failures

Charging and Safety (IMPORTANT!) , Lithium What? , Voltage and Cell Count , 10C from 3S4P? Naming Conventions Explained , etc

How Graphene is Changing the World

YouTube video (embeded)

Charging Guide Based on C Rating

What is the Current Acceptable Charge Rate?, Understanding the Math: Capacity, C-Ratings, and Amperage, LiPo Battery Capacity and Charge Amperage Reference Table, etc

Spektrum Smart Batteries

Smart Battery Technology Smart Battery Technology , Data Rich Data Rich , etc

How-to Build 6-Cell LiPo Pack

Gathering Materials and Workspace Preparation, Series Configuration and Soldering Setup, Progressive Assembly and Voltage Verification, Vibration Damping and Insulation, etc

Spektrum G1 through G2

The Introduction , Generation 1 (G1) The Versatile Standard , Generation 2 (G2) The Streamlined Innovation , The Difference Matrix , etc

Investigating The Worlds First Solid State Battery

YouTube video (embeded)

Worlds First All-Solid-State Battery in Production

YouTube video (embeded)

PD65 Charger

PD65W USB‑C Fast Charger for RC Pilots, FPV, and Field Techs , etc

LiON Manuf Defect To Watch For

YouTube video (embeded)

C Ratings

1. What is a LiPo C-Rating? , 2. Baseline Theoretical Calculations & Examples , 3. The Reality of Marketing Inflation vs. Internal Resistance (IR) , 4. Calculating True C-Rating from Cell Internal Resistance , etc

Watts Amps Amp-Hours Watt-Hours and C Rating

Demystifying RC Power: Watts, Amps, Amp-Hours, Watt-Hours, and C-Ratings Explained, The Water Pipe Analogy: A Beginner's Introduction, Technical Definitions & Core Formulas, RC Helicopters and High Discharge Rates, etc

Tabless LiON Cell Batteries

Ben Toogood LiPo Batteries Are About to Be Replaced , YouTube video (embeded), LA Hover Bikes Tabless LiOn FPV Batteries? , YouTube video (embeded), Joshua Bardwell Can "Tabless" LiOn Replace LiPo Batteries? , YouTube video (embeded), Why Is This Tabless 21700 Is Better Than Molicel For High Discharge Lithium Battery Cell Teardown

Instructor Student Pilots Intro

Warm Welcome & Rapport Building, Understanding His Experience & Goals, Setting the Tone for Training, Preview of the Three-Day Training Plan, etc

How your Learning method affects your RC Training

Why RC Flight Feels Overwhelming at First, Thinking on Paper: Turning RC Practice Into Real Learning, The Three Principles Applied to RC Flight, Multitasking in RC Flight: Training the Brain Like Driving or Cycling, etc

shakes

Why students shake in the first place, Techniques that calm nerves before flying, Techniques that help during flying, Techniques that help after flying, etc

caffeine effects

Cognitive Effects of Coffee, Benefits for RC Helicopter Pilots, Cautions, Final Thought, etc

spektrum wireless trainer

DX9 Black Edition (Generation 2), The transition to wireless-only, Why the confusion about the Black Series?, Spektrum transmitters that support wireless trainer:, etc

Fixed Wing Methodology and Itinerary

What You’ll Work On , Training Format , Who This Is For , etc

chewing gum

Scientific Findings, Benefits for RC Helicopter Pilots, Final Thought, etc

Best Beginner Aircraft

Best Beginner RC Airplane , YouTube video (embeded), Blade 230 S / 230 S Smart , Best Beginner Indoor RC Helicopter , YouTube video (embeded)

index2

, , 2.1 Example: TB70 belt and motor mount issues (2023) , 2.2 Long‑running platforms still get refined ,

flight_training // drone

Module 1: Beginner Basics (Months 1-2), Module 2: Fundamental Maneuvers (Months 3-4), Module 3: Intermediate Skills (Months 5-6), Module 4: Advanced Techniques (Months 7-9), etc

3-Day RC Airplane Training Syllabus Apollo 11 v2

Day 1 – Foundations, Orientation & Basic Flight Control , Day 2 – Takeoff & Landing Mastery , Day 3 – Refinement, Variations & Solo Readiness , Notes for Older Adult Learners , etc

Three-Day Fixed-Wing RC Training Syllabus

Day 1 – Foundations, Orientation, and Basic Flight Control , Day 2 – Takeoff and Landing Mastery , Day 3 – Refinement, Variations, and Solo Readiness , Notes on Instruction Style for Older Adult Learners , etc

Landing - Consistent Approaches

YouTube video (embeded)

whip

General, Description, Pre-requisites, What it teaches, etc

Freewing Pandora 6 Highwing Trainer

Technical data:, Scope of delivery:, What else you need:, Video of the Freewing Pandora 6:, etc

FMS Sky Trainer 182 1400mm

📐 Physical Dimensions , ⚡ Power & Electronics , 🔋 Battery & Radio Requirements , ✨ Key Features , etc

Verifying Aileron Direction

The Golden Rule: Follow the Stick , The Foolproof "Raise the Wing" Concept , Quick Reference Table , Pro-Tip for the Workbench , etc

ELRS Wifi Binding

The Wi-Fi Binding Process , etc

RP2 Connection Error

Should You Use "Erase Before Flash"?, Standard Flashing Workflow (ExpressLRS Configurator), Handling Build Errors in ExpressLRS Configurator, Understanding Betaflight/Rotorflight Passthrough Logs, etc

Binding with Passphrase

Why Use a Binding Phrase? , Step‑by‑Step Guide , Important Notes , Quick Summary , etc

RP2 Connection Debugging

3.1 Frames and mounting points , 3.2 Gears and drivetrain , 3.3 Rotor heads and control systems , From Mod 0.5 to Mod 0.6,

Radiomasters TCXO Tech

The Physics: Why Temperature Distorts Radio Signals, Circuit Architecture: What a TCXO Circuit Is Doing, The Origins: Where Did TCXO Technology Come From?, Where Else Is TCXO Tech Used?, etc

Binding without Passphrase

YouTube video (embeded)

spektrum rx performance

Tail Drive: Belt vs. Torque Tube, Low‑Impact Crash, High‑Impact Crash, Main Rotor Head ,

DSMX Satellites

Main Rotor , Main Rotor Head, Why Blade Tightness Matters , The Correct Blade Tightness Test ,

Genuine Spektrum

Tips to Avoid Clones , Video Presentation on spotting Fake Spektrum Products , YouTube video (embeded)

Servo FBL Maps

Step 1: Make the Helicopter Safe, Step 2: Remove the Main Blades, Step 3: Remove the Linkage Balls from the Blade Grips, Step 4: Align the Blade Grip Control Arms,

full size cyclic servo comparison

Step 5: Run the Screw Through Both Threaded Holes, Step 1: Make the Helicopter Safe, Step 2: Remove the Main Blades, Step 3: Remove the Linkage Balls from the Blade Grips,

Futabas New Knuckle Servo

YouTube video (embeded)

Servo Motors how do they work

YouTube video (embeded)

Understanding Servo Frequency Limits: Why Overclocking Destroys Your Servo

Question: , AI Response: , YouTube video (embeded)