mark.j(at)yakuk.com
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 Posted: Sat Jan 07, 2006 1:55 am Post subject: spins |
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Talking of spins how many types can you get in one down line? Types that is and not turns.
ANS, 3, flat inverted, knife edge, flat errect. (in that order) These are all full power on spins.
Start at 5000ft and do 4 turns inverted flat, 2 turns knife, then 2 turns flat errect you will soon find yourself at 1500ft. This news clip from Denmark shows the above.
http://www.tv2regionerne.dk/video.asp?Id=253836
I have not tried this in the YAK 50 in one down line but assume it will work if you get the knife edge balanced OK. (Flat spin the Yak 50 right foot, very simple and gracefull figure)
as Frank says, have a plan.
Be warned the knife edge spin eats height !
have fun, :>))
oh, this clip shows just the inverted flat spin but it was 2004 and Im still learning.
http://www.yak52.aero/2004-4min.wmv
Time: 04:47:22 PM PST US From: "Frank Haertlein" <yak52driver(at)earthlink.net (yak52driver(at)earthlink.net)> Subject: Spins can kill if you're not prepared!!
Yakkers
A word of advice from experience.........
NEVER, NEVER, EVER, enter an intentional spin witho ut having in your mind a
set number of turns you are going to do. In other words....enter an
intentional spin thinking "I'm going to do one turn, two turns or whatever.
BUT HAVE THE NUMBER OF TURNS YOU ARE GOING TO DO IN YOUR MIND BEFORE YOU DO
THEM!! This advice can save your life! If nothing else you need to watch the
altimeter and not of the spinning earth!
Why do I tell you this now? I was reading the FAA accident statistics
database and discovered the following entry for a Sukoi driver...........
"According to the show announcer, the pilot performed the corkscrew maneuver
that contained 56 consecutive sn ap rolls. He then climbed to an approximate
altitude of 5000 feet and informed the announcer that he was going to
conduct a flat spin maneuver. According to the announcer the number of
rotations the pilot conducted seemed to exceed the normal amount the pilot
had conducted in the past. The spin maneuver continued until the airplane
collided with the water. No evidence of mechanical, flight controls or
control surfaces anomalies were discovered during the post-accident
examination of the airplane wreckage".
I had a similar experience during my aerobatic check ride years ago. The
instructor said "let me see what you got!" I then proceeded to do a number
of different aerobatic maneuvers without a set plan in mind. I was
ad-libbing to show the instructor what I could do. During all this the
instructor asked for a spin so I gave him one. Well, I entered the spin
without a clear, set number of turns in mind. "Hell! I'm just going to spin
this thing and show him I can do it!"................ I spun from 6000 to
the floor of 1500 when "HE" physically took control of the aircraft and
terminated the flight.
I failed the check ride. During the de-brief the instructor said that "you
have to have a clear number of turns in mind as you enter a spin". He
related many instances of fully conscious pilots impacting the ground in
aircraft perfectly recoverable from any spin maneuver. "The spin can
mesmerize so be prepared". If you don't have in mind a set number of turns
as you enter a spin you may wind up like many other air show performers who
kept enjoying (or showing off) the spin until it killed them.
Frank
Best regards, Mark
www.yakuk.com
+44 (0)1767 651156 office +44 (0)7785 538 317 mobile
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