My First Homemade Rc.Heli size600

[sameh]

Hi,
This is my first Homemade Rc.Heli size 600, i worked on it for few months, it is my graduation project from Cairo Uni Faculty of Engineering Aerospace department.
it is not just a model, i could made all its calculations and evaluate its design parameters.
I made a helicopter calculator to calculate everything for it and for any other Rc Heli. and a program on Matlab with all important helicopter equations.
i will post all information you are interested in soon here.
thank you...
contact me here for quick information until i finish my post...
photos are in attachments.

[elektro Anders]

Hi.
Your project looks awesome. I am curious what helicopter equations are you using. I am an engineer myself(electrical engineer) and I would like to understand the math and physics of the helicopter better.


Cheers

[Gladius]

Sameh, glad to see you're still working on this. Have you flown it yet?

[yakky]

Cool build, looks like you are in the middle of BFE there. I'd love to hear more details on the flight control software and to see it fly.

[Gladius]

I'm sure he appreciates you referring to his home like that.

[SumOFparts]

Very interesting - I dont see a main gear -

also the the tail prop doesnt appear to be variable pitch - so how are tail kicks controlled......

[rcnorth]

Cool, lets see the flight video

Why are the skids backwards?

[sameh]

Gladuis... thank you very much for your help...

[nightflyr]

Originally Posted by SumOFparts

Very interesting - I dont see a main gear -

also the the tail prop doesnt appear to be variable pitch - so how are tail kicks controlled......

Appears to be a direct drive tail motor with fixed pitch prop.
With no visible main gear, I can only assume one of two things.

1) Direct drive main rotor.

2) 2 stage main drive.

[JaggedEdge]

It's likely that he has a gyro controlling an esc that drives the tail motor.

[nightflyr]

Originally Posted by JaggedEdge

It's likely that he has a gyro controlling an esc that drives the tail motor.

Interesting idea, wonder how well it can hold the tail under various loads.

[ticedoff8]

Interesting idea, wonder how well it can hold the tail under various loads.

There are maybe 1/2 dozen modern helis that use that technique.
Most are micro- / mini- helicopters (Blade MCPx and a few like that).
I've never seen it on the larger helis. I would guess because the motor weighs too much to be a benefit.

No flybar either.
The picture shows a swash (with anti-torque guide) & main grip links, I would assume it is full collective / cyclic and uses an FBL gyro.

As a home-made helicopter, it would be interesting to see it fly.