On Sat, 19 Nov 2016 00:50:56 -0800, Bruce Hoult wrote:

On Saturday, November 19, 2016 at 9:30:01 AM UTC+3, 2G wrote:
On Friday, November 18, 2016 at 8:06:21 AM UTC-8, Dan Marotta wrote:
To reply to the subject question in a word: NO.

You can stall and spin from any attitude or airspeed. All you have
to do is plan and execute it correctly or simply f*ck up the turn.

On 11/18/2016 6:25 AM, wrote:
An AOPA article states that the AOPA Safety Institute and
University of North Dakota are studying the "circular vs
rectangular" pattern as a result of the NTSB "Most Wanted Safety
Improvements. It'll be interesting to see what the study produces.

--
Dan, 5J

It's REALLY hard to spin while flying coordinated - if you know of a
way I would truly like to know. It is also tough to stall while flying
coordinated because it takes a very high angle of attack and you would
really have to work it keeping the glider coordinated as you approach
stall. The FAA is emphasizing an angle of attack indicator to prevent
spins; I think what is needed is an audible flight coordination
indicator. In our gliders we have a heads-up flight coordination
indicator which is even better - it's called a yaw string (but you have
to look at it and react to it).

Define "coordinated". No problem to spin with the string perfectly
centered.

It's true in any glider with enough elevator, but the Blanik is
excellent for demonstrating it. Shallow turn, very graaaadually slow it
down, maintaining constant bank angle with aileron and keeping the
string in the middle with the rudder. Pretty soon you've got a whole
heap of out of turn aileron and into turn rudder. But the string is in
the middle and the nose isn't even very high. And then BAM full-on
incipient spin.

Sounds like something the Puchacz would also do rather well. Must try it
during my next annual check.


--
martin@ | Martin Gregorie
gregorie. | Essex, UK
org |