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Europa-List: Turn to final Cross-controlling

Subject: Europa-List: Turn to final Cross-controlling
From: Fergus Kyle <VE3LVO@rac.ca>
Date: Sat, 29 Jul 2006 10:55:45

It is tempting to ponder the Shaw accident.
Accident reports simplify down to two results in the reader`s mind:
(1) There but for the Grace of God go I, or
(2) I wouldn`t have done that.
        Thanks to Mike Parkin for the warning about drooping ailerons on a 
loaded wing - something perhaps we hadn`t considered ourselves....
The described reaction of the Europa wing is much the same as the early 
North American cantilever mono-wings such as the NA64Yale and BT9
designs. Get the ball out of centre on final and it`s inverted and 30deg 
nosedown in one movie screen - 1-30th second.
        I note some misunderstanding about slip and skid. This, for those 
less practised or experienced:
Visualise a slippery circular racetrack with fast car centred in the turn. 
Too fast and you SKID up and off the track; too slow and you SLIP down off 
the track. For each speed there is a bank ideal for centring - same as the 
aircraft. The job is to pick the ideal bank for the speed (actually angle of 
attack).   Turning with only aileron does not answer the threat, depending 
on the design of the ailerons. Admittedly, Don Dykins has produced a good 
design for aileron drag but it doesn`t make nice to anger Mother nature.
Because the rudder is so effective, it is important to treat it as a 
wing-accelerator (unlike a boat). Push left rudder and accelerate the right 
wing and slow the left wing. If you are keen to examine the wing at 
altitude, consider this. At altitude, the split second the wing drops, add 
power, drop nose and give opposite rudder (ie: left wing down, rapid right 
rudder). The first two moves speed the `plane up, the latter kick 
accelerates the lower wing. If anything will preserve your wellbeing, this 
will.
            The overriding rule is always co-ordinate the turn ( ball in the 
centre) with the bank applicable to the airspeed. The only way to achieve 
this is to practise these manoeuvres until they become second nature. When 
you can fly the turn with the ball in the centre - without looking at it - 
(observer), you are ready to land in less-than-ideal conditions.
YOU must be satisfied, Captain..

Ferg Kyle
Europa A064 914 Classic 



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