An aileron (aka ballistic) roll is completely different from a barrel roll, which is totally different than a slow roll, which has nothing to do with a snap roll, which is entirely different than a torque roll, which has nothing to do with a point (aka hesitation) roll.
If the above is not blindingly obvious to you, please do not attempt to perform any of the above, esp in an aircraft which is NOT certified in the aerobatic category, and thus demands that the maneuver be flown perfectly (ie with minimum G).
Would you teach yourself brain surgery? How about instrument flying? Would you recommend that a guy with no hood time head off into the nearest cloud and try to teach himself IFR flying?
FWIW ... an aileron (ballistic) roll is the most gentlest of aerobatic maneuvers. Curiously, it is orphaned by both the airshow crowd (not brutal enough) and by the contest crowd (lacks racial purity or something).
Ever seen the guy with a bucket full of water with a string tied to it, swing it over his head? The water doesn't come out when it's upside down, because of centrifugal force overcoming the 1G of gravity.
A well-flown aileron roll is similar ... when the aircraft is inverted at the apogee, it should be experiencing about a half a +ve G (give or take).
For a poorly-flown aileron roll, you need look no further than the opening scene of the movie "Battle of Britain" - a Spitfire, which has no inverted systems, chokes and pukes while inverted during badly flown aileron roll - he went negative.
With a bit of practice, you can fly an aileron roll with only +0.5G/+2.0G on the accelerometer telltale needles ... +2G in the pitch up, and down to +0.5G while inverted. You could probably get it down to +1.5G if you wanted (shrug).
btw, the guy in the original vid knew what he was doing - note the lack of nose down pitch attitude at the end of the maneuver, which is typical of novice attempts. He nicely pitched up the entry.
Obviously the slower the roll rate, the more pitched up the entry must be, to give time for the roll to complete. And, the more pitched up the entry must be, the higher the entry speed must be, because airspeed is converted to altitude during the pitch up, and you don't want to run out of airspeed at the top. This really isn't rocket science (it's actually high school level physics) but amazing few people seem to be able to comprehend it, nonetheless. I heard that most Canadians aren't able to help their children with their homework, either. Same/same I suppose.
Anyways, if you are interested in aerobatics, strap on a chute and get some dual from an experienced aerobatic instructor. If you've never been upside down before, you will learn an awful lot in one lesson. |
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