48
What does elevator-to-flap do?
Elevator-to-flap mixing causes more aggressive pitching when
elevator is applied, making for tighter inside and outside loops.
Using the recommended throws, the Ultra Stick
™
40 is capable
of very tight 15-foot diameter loops.
First flight profile
It’s a good idea to start up high then turn on the elevator-to-flap
mixing to get accustomed to the increased pitch (elevator)
sensitivity. You may find it necessary to increase the elevator
expo to tame the aggressiveness around center. Now try some
full up loops first with the mixing on and then off to see just how
effective elevator-to-flaps can be. With practice, you can bring
these tight loops right down to the deck and even do tight head-
high outside loops.
Things to watch out for
The only real place you may run into trouble here is getting used
to the increased pitch sensitivity and thus over-control the air-
plane. Just take it easy, staying at least two mistakes high until
you’re comfortable with the way the Ultra Stick 40 responds.
Later you may want to try differing amounts of flap travel with
elevator to see the effects.
Aileron-to-Flaps
What is aileron-to-flap?
An aileron input causes the flaps to operate in the same direc-
tion as ailerons (i.e., a right aileron input causes the right
aileron and right flap to go up and the left aileron and left flap
to go down).
What does it do?
Aileron-to-flap mixing gives a more aggressive roll rate for
doing rapid rolls. This mix also increases the rotation rate of
snaps, spins, or any other maneuver that uses ailerons.
First flight profile
Start high and turn on the aileron-to-flap mix. Now do a couple
of full-deflection, high-rate rolls and note the difference in roll
rate. You should see about a 30% increase in roll speed. Now try
a couple of snaps (full up, full right aileron, and full right rudder).
You’ll find snaps and spins tighter, faster, and more aggressive.
What to watch out for
Be careful not to over-control the ailerons on your first attempts.
Short Takeoff Flaps
What is short takeoff flaps?
The flaps are set to a down position.
What does it do?
Short takeoff flaps create a high-lift wing that allows the Ultra
Stick to do very short takeoffs, in some instances (with a power-
ful engine and from asphalt) within the length of the fuselage.
First flight profile
After you have become comfortable with the flight characteristics
of your Ultra Stick 40, it’s time to give the short takeoff flaps a
try. On the runway drop the flaps, then when you’re ready, punch
the throttle and hold some up elevator. Be ready for the Ultra
Stick to break ground and head for the skies! It’s important to
release up elevator when the airplane breaks ground, then turn
off the flaps to resume flights. On later flights try holding full up
elevator to shorten the roll-out even more.
What to Watch Out For
On your first flap takeoffs, you may be surprised at just how
quickly the Ultra Stick 40 pops off the ground, especially with
a strong engine. Be ready to release any up elevator quickly.
Also, you’ll notice that the flap causes the nose to pitch up a bit.
We normally don’t recommend mixing in elevator compensation
(a bit of down elevator), as the intention of short takeoff flaps is
to get off the ground in as short a distance as possible. Just turn
off the flap shortly after takeoff.
Section 18: Quad Flaps
CONTINUED
Couple ailerons to flaps
Rapid Rolls
Flaps follow aileron
Short Takeoff
Full flaps
Flap down
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