Helicopter Principles

I want to show the different helicopter Principles, for reference if you are new. There will be more than this list, but I hope this will be a good starting point for you. To learn the real physics of them, please check out the internet. You get it. here is just for beginners and showing my work.

The first two are the most common ones you will see most of the time. Yet, it is hardest to make them fly nicely on SimplePlane. If you master this,,,, any other helicopter is easier to make.

This follows the same principle as above, Just the tail rotor is ducted

Visit to Tuna-400
Visit to Tuna-300 Military
Visit to Tuna-200

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2) Intermeshing rotors (aka, synchropter)

Example: Kaman HH-43 Huskie
2 rotor has to turn in the opposite direction, same engine power. intermeshing.
It's hard to build, most of the time, rotors are crushing into each other.

Husky-22

Visit to Gator-2-B

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3) Coaxial rotor

Example: Russian Kamov helicopters

For me, this is the easiest one to build on SimplePlane. 2 rotors have to turn in the opposite direction, same engine power. Very stable to fly too.

Visit to Karmov-Obj-322

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4) Tandem Rotors

example: CH47 Chinook


Visit to CH22-Tandem-Rotor

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5) Transverse Rotors

example: Mil-V12

Visit to Transverse-rotor-TR01

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6) Tilt Rotor

Example: V22 Osprey, (which is also a Transverse Rotor category) but it can tilt the rotors and fly like a fixed wing aircraft.

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7) Compound Helicopter

Tuna-350-Compound-X

Sikorsky–Boeing SB-1 Defiant
A compound helicopter has an additional system for thrust and, typically, small stub-fixed wings. This offloads the rotor in cruise, which allows its rotation to be slowed down, thus increasing the maximum speed of the aircraft. The Lockheed AH-56A Cheyenne diverted up to 90% of its engine power to a pusher propeller during forward flight.[Wiki]

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This post does not included Auto Gyros. Which works on different principle. I will post about it in the future.

Google yourseif on

• Auto Gyros
• VTOL
• STOL