Antonov 22 at Manchester

When the props start up, they seem to tell a story!

I love the contra-rotating blade sound

OMG supersonic that amazing,, dude a freaking 300 meter per secont, know the radius and you can calculate how manney RPM XD,, that must be the most powerfull turboprop engine in the world.

it is the most powerful IMO

Can SOMEBODY tell me how they let these 2 props turn into the opposite direction of eachother,, thats.. PS that really is a beautiful sound.

Easy. Those are turbocontraprops from Kusnetzov. One prop pulls and the other pushes. You can see those props also in the Tupolev Tu-95 "Bear".

I think DrummerRF wants to know how the mechanism works...something I'm very interested in also...

PS>> they both push. the Cessna 337 is an example of push-pull props, however both props on the AN-22 engines are at the front, so they both have to push. If one pushed and one pulled, they would counteract each others action and produce zero trust.

sure they use a straight hole thru a planetary sun gear box google the engines and you will find some blueprints it looks complecated however there really good engines need alot of TLC to keep flying heres whats cool not only are they counter rotating both props can be pitch adjusted negative 180degrees out of sinc but to paint a picture of the inturnals of the engine it would be to hard sorry "sorry about my bad english spelling"

looks a little like the engine on a tupolev-95 bear