Have a good trip and enjoy it mate.

@@DrBearAviation I will

Thanks mate for providing us with this interesting knowledge.

Her top speed is around 250 mile/hour. A Yak-55M has a top speed of around 190 mile/hour. I believe the major purpose of constructing this plane is to take advantage of its excessive thrust (thrust to weight ratio is well above 1) to achieve maneuvers otherwise impossible, instead of pursuing fast speed. In addition, I guess that its top speed of 250 mile/hour is dictated by its structure strength instead of being limited by power.

Something the aviation industry likes to call "speed drag" basically. Because the wheels are flipping heavy. It naturally pulls the plane down. But keep in mind the plane is still going at a safe flying speed. In order to counter this. F4 must be applied. That way the aircraft is now in landing. To answer your question it's to withdraw drag from glide slope. I hope I haven't melted your brain

It is born by fusing two Yak 55s together ( and adding a jet engine). It will be too much extra work to revise one engine to rotate in the opposite direction. Two engines rotating in opposite directions might bring handling benefits, but you could find many twins with two engines spinning in the same direction (this way, you only need to store and look after one type of engine, instead of two types). A properly trained pilots should easily handle two engines of the same rotation direction.