jefflinebaugh(at)bellsout
Guest
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 Posted: Fri Jun 27, 2008 5:05 am Post subject: ACRO in Rockets |
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Andrew and all...
Tom and Danny did a nice job of trying to discourage acro without Qualified
Instruction, but let me tag a few more things on to this...
1) Don't believe everything you read... (Insurance agents must be
horrified to read people learning about acro on the internet...!) Example:
On the Rocket forum, on individual advised that recovering from an inverted
spin is "basically the same" as a normal spin... Couldn't be more untrue!
Falling out of a vertical maneuver, with crossed controls is a recipe for a
spin...upright or inverted...depending on which way it goes... Do you know
the source that you are receiving instruction from?
2) Most Acro CFIs teach in Citabrias/Decathlons or Pitts. Acro in a rocket
is quite different due to low drag/high power. Techniques that work in those
airplanes could be dangerous in a rocket without applying a healthy dose of
knowledge/experience. An Extra is a better tool to learn by... High
performance jet jocks (Smokey Ray and others here excepted! ;^) typically
leave their feet flat on the floor and don't understand p-factor or torque.
3) My oil pressure drops quickly on vertical up-lines! I have inverted oil
in my Rocket (Christen system) and an audible warning when oil pressure
drops below 30. I hate hearing that noise! As a result, I avoid sustained
vertical lines, hammerheads, left knife-edge (right is OK!) and any
sustained "zero G" flight. (Inverted flight is fine, positive G is fine, but
hanging around zero isn't.) If you are worrying about flying the airplane
on that up-line, watching airspeed, etc, are you going to be good about
checking your oil pressure too?!
I am all for fun...the Rocket is a great acro ship and I enjoy acro nearly
every flight. I learn something every time I fly it. Risk assessment is
something we all must do. Unfortunately, reading the accident reports, we
don't do it well, especially when our egos are involved. What's the number
one accident cause in "sport" aviation? Please don't just "give it a try"!
Jeff Linebaugh
jefflinebaugh(at)bellsouth.net
F1 Rocket "Sport"
Collierville, TN
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