Charles Blouin
• Gatineau, QC
• Blog Posts (10)
• Discussions
• Groups
• Photos
• Photo Albums
• Videos

# Charles Blouin's Page

## Latest Activity

"Congrats!"
Apr 8
"@Bjoern Kellermann 3.5 years, later, we deliver the database! https://database.rcbenchmark.com/ The GUI can now upload data automatically. The database is still in alpha, but it is useable. We will implement more visualization features and a…"
Feb 8
"Thanks for the tutorial! It would have been very useful when I was working on my thesis, I struggled with this exact problem (obtaining the position of a marker)."
Aug 23, 2018
"Ravi is not right.  Propeller aircraft can go to 50000 feet.  Google Grob G520 if you don't believe me."
Mar 25, 2018
"They also will show a cruise quad with nuclear power plant and unlimited range."
Mar 25, 2018
"Russians fake news..."
Mar 25, 2018
Mar 23, 2018
"Here's a video with more build details. Ravi is correct, this is truly remarkable and defies all logic."
Mar 23, 2018

100KM
"I've been to 4.1km with fixed wing FPV and I can tell you the props really lose bite up there. Also, most GPSes don't work over 3km altitude. Typical baros on FCs at very low pressures are almost useless."
Mar 23, 2018
"propeller aircrafts have problem above 4000 meters because the air density decreases rapidly."
Mar 23, 2018
"Thrust is proportional to air density. Air density is exponentially lower with altitude. This means that the propellers will spin faster at higher altitude. Consequently, the limit is probably how fast your propellers can spin. You need to find a…"
Mar 23, 2018
"it is not that I do not believe it. but flying a small quad at 10000 meters defies all logics 1. The baro would fail (a correction has to be applied) 2. the gyros would fail (-48 (deg) 3. the batteries should fail (-48 deg) 4. The RC has a poor…"
Mar 23, 2018
"Does anyone know if there is a theoretical limit to how high a aircraft of this type can go (i.e. jet engine vs propeller)? The air gets thinner the higher you go, so there must be some point where the aircraft could not propel itself further up,…"
Mar 22, 2018
"Ok, this totally looks like product placement now, but I swear it was not planned. I was just contacted by Anik, one of the person working on the quadcopter in the video. He used the RCbenchmark Series 1580 (of which I am the designer) for the…"
Mar 21, 2018

100KM
"Can a fixed wing go higher?"
Mar 21, 2018
"@Ewoud: Ok. Your controller looks great! The PID definetly looks less efficent here. I was just wondering how it would perform in gusty wind with a random pattern. The controller actually has a big effect on energy consumption. A very aggressive…"
Mar 20, 2018

## Profile Information

M.Sc. Student, Mechanical engineering, Optimal control.
I am working a system to measure the thrust and torque of motors! RCbenchmark.com
Helicopters
Control and autonomous flight
Hometown:
Gatineau

## Charles Blouin's Blog

### 10 km high flight with a 1kg quadcopter!

Posted on March 19, 2018 at 7:30pm

I was quite surprised to see a quadcopter flying that high! It was done by Денис Корякин as shown on his youtube channel.

Specs:

Receiver: TrueRC 5.8GHz X²-AIR Antenna RHCP

FPV glasses: Furious True-D V3.5 Diversity Receiver System

Video transmission: Antenna FOXEER Thor 60mm…

Continue

### First affordable USB thrust stand available now!

Posted on February 22, 2016 at 4:50pm

We are now shipping the RCbenchmark Series 1520. It measures overall efficiency, current, thrust, voltage, and motor speed. The device communicates with our…

Continue

### Estimate torque and efficiency from Kv

Posted on February 15, 2016 at 10:30am

How do you estimate motor torque and efficiency from basic measurements? It is useful to know this information to improve flight time and performance. The video explains the fundamental relationship between Kt and Kv. It turns out you can get a lot of information from the motor Kv.

This video is part of a series. There are more tutorials on the…

Continue

### Improving motor and propeller performance: theory and application (part1)

Posted on January 25, 2016 at 4:27pm

As promised, here is part 1 of our series on motor and propeller theory. Part 1 covers the coil magnet model, Kirchhoff's law for a motor, Back EMF, Kv, Kt, and motor efficiency.

By the end of the first video, you should really understand why is a motor is inefficient and the relation between electrical power, heat and mechanical power. The motor model is…

Continue

Join DIY Drones

1

2

3

4

5

6

7

## Groups

272 members

1115 members

294 members

49 members

• ### 3D Printing Drone Parts

277 members

Season Two of the Trust Time Trial (T3) Contest
A list of all T3 contests is here. The current round, the Vertical Horizontal one, is here