26
First Flight
1.
Are you using fresh rubber bands for each attachment? If not, then replace the motor mount, landing gear,
and wing rubber bands with new.
2.
Prior to your first flight we suggest you read the included beginners flight manual and seek the assistance
of an experienced pilot. For your initial flight balance aircraft on or just forward of the main spar as
indicated on the plan sheet. For more advanced maneuvers you may slowly move the CG back once you
are comfortable with the flight envelope of this model.
3.
Sight along wings and tail surface and remove warps if found. Your rudder should be perpendicular to
your horizontal stabilizer and your horizontal stabilizer should be parallel to your wings. Wing tips should
not twist down in the back (wash in). They should be either perfectly flat or have a slight up-twist (wash-
out).
4.
A simple way to check your wing for warps is to sight along the underside of the wing from the back of the
model – to do this let your models main gear rest on the ground stand behind the model and raise the tail
up until you can see the underside of the wing. Slowly drop the tail until the underside of the wing starts to
vanish from your line of sight – hold the model in this position and compare the visible surfaces of the top
and bottom of both wings. If you can see more of the bottom of the right wing compared to the left then
you probably have a bit of wash-out (a slight twist up at the wing tip trailing edge) in the right wing
alternatively you may have a bit of wash-in in the left wing or the tendency for the wing trailing edge to twist
down. You can also lay each wing half on a flat surface, hold the root of the wing (inside rib) flat against
your table top and observe if your wing lies flat on the table. Wash out will make the plane more stable
and spin resistant, as the tips of the wing will continue to fly while the root is stalled. Wash-in will make the
plane more difficult to fly at near stall speeds. A model that always drops one wing at stall will often have a
bit of twist in the wing or wash-in on the wing that drops.
5.
Set control surface throws to the mechanical low rate. That is to say you should utilize the outside hole on
the control surface ply control horn and the inside hole on the HS-81 servo.
Suggested Control Surface Travel
Elevator +/- 15 deg.
/- 25 deg.
6.
Choose a calm day and a grassy field for your maiden trim flight!
7.
Slowly advance throttle to full power – pick a point on the ground about 100’ out and give the SQuiRT an
easy LEVEL toss into the wind aiming at that point on the ground DO NOT THROW THE PLANE UP into
the air. Alternatively you may ROG (rise off ground) by setting the SQuiRT on a smooth dirt or paved
surface facing into the wind and advancing the throttle slowly - steer with rudder to track the plane straight
– within about 10-20’ you will be airborne. Either way allow the plane to climb slowly under power resisting
the urge to add excessive elevator to climb out. Climb out to 100+ feet and begin trimming the plane for
level flight at cruise.
8.
First trim the SQuiRT in pitch. You will notice that the SQuiRT will climb under power this is part of the
planes nature and stems from it’s positive stability (the SQuiRT will recover rapidly to level flight from a
dive by simply centering the control surfaces and allowing the plane to fly itself out of trouble). To trim for
pitch set your throttle to just over ½. Next, use the trim tab on your transmitter for elevator to add or
decrease elevator trim until you have the plane flying level. Reducing power or adding power will
necessitate re-trimming the plane in pitch. Remember when you want your plane to climb add power not
up elevator. When you want to descend, reduce power.
9.
Next, trim the plane in roll. Using the rudder trim tab on your transmitter add left or right rudder trim until
the plane tracks a straight line.
10. The SQuiRT carries energy very well and will glide in nicely for simple landings once the plane has been
trimmed.
11. Enjoy your SQuiRT!
© 2005 Stevens AeroModel all rights reserved.