Recent content by O2 Birddog

The rain man is the guy who doesn't understand you still have a great deal of positive airspeed and flow over the wings and control surfaces in one of these type craft even in a hover so no, technically the wings are not stalled. For control surfaces to operate they must have that airflow.

There is no thrust vectoring in these aircraft. All the low speed maneuvers are performed using traditional control surfaces.

This side line was because someone said you could not compensate for additional drag with more thrust. All control surfaces have positive airflow at all speeds as demonstrated in the maneuvers due to that tremendous thrust. The fact you don't understand or agree doesn't make it wrong, the...

Thrust eliminates stalling even though all control surfaces have enough airflow to be active at 0kts ground speed as noted in transition, takeoff, and landing.

I'm not doubting you at all, I just don't know all the in's and out's. If you just look at the principle of how a lever works it makes perfect sense that the additional drag from the gear would create at least a slight nose down pitch and corresponding shift in CG. I have a great deal of...

Definitely going to create some confusion and consternation in the industry for a while.

I don't know about that but I do know the turbulence they cause increases drag and affects lift which is why high speed, high performance aircraft were given retractable landing gear even though retractable gear causes a lot of crashes.

And without that thrust it is not possible thus the thrust lowers the stall speed to essentially a negative number. It's ok we're far afield now derailing the thread, you guys continue on.

Actually it does as the vertical lift aircraft and aerobatic aircraft demonstrate with propellers, not rockets.

The entire subject was brought up because I said that thrust is/can be used to counter drag thus maintaining the same climb and angle of attack.

I'm saying the opposite. Gear down creates additional drag, that's why the new Diamonds allow the use of landing gear at cruising speed to be used as a speed brake.

If the gear being down doesn't create more drag why would this be an issue?

Well when they lack enough thrust to keep climbing they tend to flip over and come down nose first at a very high rate of speed. The point is, if you apply enough thrust you can make a brick fly, thus thrust counters increased drag. Drag does not apply only to the airfoil it applies to the...

More drag requires more thrust to maintain the same stall speed. Observe the liftoff of a rocket sometime.

To over come it thus increasing stall speed.