how the model handles at slower speeds. Add power to see
how she climbs as well. Continue to fly around, executing
various maneuvers and making mental notes (or having
your assistant write them down) of what trim or C.G.
changes may be required to fine tune the model so it flies
the way you like. Mind your fuel level, but use this first flight
to become familiar with your model before landing.
To initiate a landing approach, lower the throttle while on the
downwind leg. Allow the nose of the model to pitch
downward to gradually bleed off altitude. Continue to lose
altitude, but maintain airspeed by keeping the nose down as
you turn onto the crosswind leg. Make your final turn toward
the grass landing area (into the wind) keeping the nose
down to maintain airspeed and control. Level the attitude
when the model reaches the runway threshold, modulating
the throttle as necessary to maintain your glide path and
airspeed. If you are going to overshoot, smoothly advance
the throttle and climb out to make another attempt. When
you’re ready to make your landing, flare when the model is
a foot or so off the deck, and smoothly increase up elevator
until it gently touches down.
One final note about flying your model. Have a goal or flight
plan in mind for
every
flight. This can be learning a new
maneuver(s), improving a maneuver(s) you already know, or
learning how the model behaves in certain conditions (such
as on high or low rates). This is not necessarily to improve
your skills
(though it is never a bad idea!), but more
importantly so you do not surprise yourself by impulsively
attempting a maneuver and suddenly finding that you’ve run
out of time, altitude or airspeed. Every maneuver should be
deliberate, not impulsive. For example, if you’re going to do
a loop, check your altitude, mind the wind direction
(anticipating rudder corrections that will be required to
maintain heading), remember to throttle back at the top, and
make certain you are on the desired rates (high/low rates).
A flight plan greatly reduces the chances of crashing your
model just because of poor planning and impulsive moves.
Remember to think.
Have a ball! But always stay in control and fly in a
safe manner.
GOOD LUCK AND GREAT FLYING!
O.S.
®
.15 LA Engine
Powerful, dependable, user-friendly – that describes the .15
LA sport engine. Its dual-needle carb offers fine-tuned throttle
control. Also included are a 1-piece crankcase with reinforcing
webbing and cooling fins that extend well down onto the upper
crankcase. You’ll also appreciate the safety and protection of
the remote needle, mounted on a nylon backplate. Ratchet
springs and O-ring seals help prevent settings “creep.” Also
includes glow plug and muffler.
OSMG0015
O.S. .25 FX Engine
The economical .25 FX engine has dual ball bearings for
durability and smooth operation, plus a low crankcase
profile that allows for a proportionately taller, semi-squared
head to increase cooling fin area. The needle valve is
remotely mounted for pilot safety, and an O-ring and ratchet
spring minimizes “creep” due to air leaks and vibration.
Muffler is included; glow plug required.
OSMG0525
OTHER ITEMS AVAILABLE FROM
GREAT PLANES
Landing
19
