Information about the dual-rotor

[Sunjah]

I am wondering if anyone knows of a really good site for a descriptive and accurate run-down on how the dual-rotors work for the Ka-50 Hokum.

 

I remember, way back when (probably 20-25 years ago), I watched some program on the early helicopter flights. The first models would go airborne and spin like crazy, until someone figured out the tail-roter was needed to keep the helicopter lined up straight. I remember watching some of those early, beastly inventions, and they really did spin wildly.

 

I remember one which resembled a very large box, with 2x4's used as frames, about 10-12 feet tall maybe, and just a tall, rectangular box with a rotor at the top and a guy sitting in a box with controls down below...pretty funny looking compared to what we have now. It was kind of a cross of this Early Design"]Early Design & this Early Design 2.

 

I understand the basic principles behind helicopter flight; I would just like to find somewhere that explained how the Ka-50's counter-spinning dual-rotors really worked to bring about flight, with visuals, diagrams and a good (thorough, yet understandable) explanation. It just doesn't seem like it should work! I know it's me, because it does, but I'd like to really read up on HOW it works.

 

Thanks!

 

Sunjah

The helicopter master (hey, one flight of no-death is mastery in my book!)

[JDski]

You can fly one yourself if you get one of these MCX's. I bought one for my brother for X-mas. It flies great! Very easy to fly and with precision.

It simply spins one rotor faster then the other to achieve direction.

[Sunjah]

I must ask some baddddd questions. No one ever replied to this one, even though 146 people looked at it.

 

If there was anyone interested, I found this wikipedia entry that gives some information about it. If it is something you are interested in (I understand helicopter and tail spin and the need for stablization; I find this one hard to understand at face value), I hope you enjoy!

 

Co-Axial Rotors {from Wikipedia}