Aircraft by/Credits to: DOX
Link to the original plane:https://www.simpleplanes.com/a/HlDxve/engine-to-prop-based-on-LimitedShelf568-plane

v5 car engine, successful acceleration car engine

Successfully accelerated car engine

A car engine that successfully accelerates after many attempts

The following are the ideas, attempts and conclusions in the process, which are basically successful

Version 4 engine, or "car engine v4", or simply "v4"

Through previous attempts, only increase the number of whole engines to increase the speed of rotor rotation to increase the speed of the aircraft

During the process, it was found that if the aircraft is unstable in flight, the instability in flight can be reduced by increasing the horsepower of the car engine.

The result was successful, and the speed increased by about 30mph to a speed of about 118mph
In conclusion, the idea of ??only adding the whole engine is correct

Version 5 engine, referred to as "v5" (current aircraft)

Modify the original engine to reduce the length and try to fit enough engines in the limited length

The result was successful, the length of the engine was successfully reduced and it was able to operate. Originally, it could only be inserted into the length of 2 engines, but now it can be inserted into 3 engines, and the thrust remains unchanged.

Speeds from 118mph, up to around 150mph, and can reach 200mph in a dive
Can easily complete a 30-degree climb

Now the v5 engine can make the aircraft no longer fall into the vicious cycle of stalling at low speed that the previous version of the engine would have, and then stalling and stalling again.

The aircraft has a gyroscope-like flight return effect in flight, but in fact there is no gyroscope inside the aircraft. In fact, it may be a delicate balance caused by the collision inside the aircraft engine. If the engine is turned off during flight, there will be no collision inside the engine. unrestricted mobility

The two engines under the same rotor reverse each other to cancel the reaction force between each other, so that the maneuvering of the aircraft is not limited from the beginning, but the vibration of the engine will be very violent, which will cause the aircraft to disintegrate.

other car engine aircraft-

all car engine

The first plane
v1

the last don't working plane
v3

the best working plane
v5 Aircraft on this page

the last working plane
v6