What is the benefit of CLT and not CLT?

[joeheli]

Well, I have a nice topic: What is the benefit of CLT and not CLT? I think that the engine on the CLT makes the gyro slow on reaction, and the engine makes more afford. I will explain: The engine is on the middle of the gyro has to make more effort to raise you and the bottom of the gyro. For example: when you are taking a rusty screw whit a wrench (the longer the wrench the better! right?), do you make the force on the middle of the wrench or really close to the bottom of it? You make the force close the bottom of the wrench, because is lest effort to do, if you do the effort on the middle you are
Going to make allot of afford, when you can just make less afford if you do the force closest to the bottom. So that explain that the engine make more effort if is on CLT, lest effort if is place closes to the bottom of the gyro. A thing like Ken Brock use to say: "Rotorcraft are dragging devises, very draggy" remember that? The rotor is making all the effort to lift the gyro and is pulling it back, the way to retract that is lowering the nose a litter(less drag) so if the engine is closes to the bottom of the CLT is helping to beat that effort equally with the engine making less force. That means fuel economy, and the engine is more reliable for longer time. (Rebuilding)

Other thing is that if you are flying and you didn’t see that high voltage cable that is 20 feet in front of you will crank the engine full power and pull back the stick, with a CLT machine the gyro with more afford will pick the nose slowly and push the gyro faster to the front so you will hit the cables. Whit a gyro with the engine closes to the bottom of the gyro you will crank the engine in full power and the nose will rise faster and "maybe” you miss the High voltage cables. I am not saying that CLT is no benefit they are more stable , they will pick forward speed faster and prevent PIO, but there are other good benefit from the not CLT. I am just using common sense; I am not saying that I am right, if I am wrong please, feel free to tell me.

:cool:

[birdy]

From the number of responces to your question Joe,you must be rite ay.

[rehler]

Joe,

There are three main force vectors acting on the gyro in flight - down (weight), forward (prop thrust) and up and back about 11 degrees (rotor thrust vector - pull of the rotor on the gyro). The force by the engine/prop is the same regardless of rather it is above the CG, on the CG or below the CG. The rotor thrust vector is the same. The downward force is the same. There is no savings or efficiency gained by moving the position of the prop thrust.

At very high speeds there would be a difference as to where the prop thrust is positioned compared to the center of drag, but this is of very little importance in most gyros.

The only difference is when the rotor stops pulling up, such as if you experience negative G. Then it makes a big difference - low or high will push the gyro nose up or down, centerline thrust (on the CG) will push the gyro straight ahead. This also occurs when you change throttle settings (more or less power) - the nose would go up or down if the prop thrust was above or below the CG and then return to neutral, but not change if the prop thrust was on the CG.

[eruttan]

Joe;
I suggest you are confusing leverage and lift.
If you are turning a rusty screw it is easier to be farther away right? But at what cost? Distance moved is much greater?

If you are LIFTING a heavy weight do you want to be closer of farther away? Lift a bag of concreate at the end of a 10 foot pole? Or in a leg squat?

google "Moment of Inertia". that will get you started.

[Brent_Brown]

Stop using common sense. Like they say don't fight it man. Go with the flow become one with the CLT.

[automan1223]

All those lawn darts cannot be wrong !