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Earl[_93_]

Mr. Luddite wrote:
On 5/27/2014 11:04 AM, Poquito Loco wrote:
On Tue, 27 May 2014 10:32:52 -0400, KC wrote:

On 5/27/2014 9:33 AM, wrote:
On Tuesday, May 27, 2014 8:43:59 AM UTC-4, H*a*r*r*o*l*d wrote:
On 5/27/2014 8:14 AM, John H wrote:

Maybe you were seeing some 3D flying also:
https://www.youtube.com/watch?v=ZVihCOt7jQw

I've seen this 3D flyer perform a few times. I can't imagine how the
models can do the same stunts she does.

I'm not sure exactly what you're trying to say. Model R/C
airplanes are the only kinds of aircraft that can perform those
extreme 3D maneuvers, in fact R/C invented 3D. A full-scale Pitts,
Cap232, etc... just doesn't have the power-to-weight ratio to hang
on the prop practically motionless in the air, then power up and
shoot straight up. They aren't flying, but are using prop wash and
large control surfaces to stabilize themselves. It takes
considerable skill and practice.

Not sure what you said cause I can't access the video right now but
this
aircraft was flying horizontal, not vertical, just holding positition
against a 15 mile an hour steady wind...

I know what you mean. See it a lot with pilots brave enough to fly in
strong winds. Some of the
lighter planes can 'hover' with just a good breeze.

I've flown in a Cessna 152 that's ground speed was negative ...
meaning it was moving backwards. This is when I was taking lessons.
I was heading back to the airport against a strong, steady headwind.
I commented to my instructor that the airplane wasn't making much
ground speed. He took over the controls and cut the throttle back,
put the flaps down by 10 or 20 degrees to "dirty" the air flow and,
after a minute or so told me to look down at the ground. The airplane
was moving backwards.

I wouldn't have thought that was possible. I found a video of an
airplane with zero ground speed:

https://www.youtube.com/watch?v=CVfA_e3wfFE