a full-size airplane. Because of its performance capabilities,
the “Ultimate,” if not assembled and operated correctly, could
possibly cause injury to yourself or spectators and damage
to property.
2. You must assemble the model according to the
instructions. Do not alter or modify the model, as doing so
may result in an unsafe or unflyable model. In a few cases
the instructions may differ slightly from the photos. In those
instances the written instructions should be considered
as correct.
3. You must take time to build straight, true and strong.
4. You must use an R/C radio system that is in first-class
condition, and a correctly sized engine and components
(fuel tank, wheels, etc.) throughout the building process.
5. You must correctly install all R/C and other components so
that the model operates correctly on the ground and in the air.
6. You must check the operation of the model before every
flight to insure that all equipment is operating and that the
model has remained structurally sound. Be sure to check
clevises or other connectors often and replace them if they
show any signs of wear or fatigue.
7. If you are not an experienced pilot or have not flown this
type of model before, we recommend that you get the
assistance of an experienced pilot in your R/C club for your
first flights. If you’re not a member of a club, your local hobby
shop has information about clubs in your area whose
membership includes experienced pilots.
8. WARNING: The cowl and wheel pants included in this kit
are made of fiberglass, the fibers of which may cause eye,
skin and respiratory tract irritation. Never blow into a part
(wheel pant, cowl) to remove fiberglass dust, as the dust will
blow back into your eyes. Always wear safety goggles, a
particle mask and rubber gloves when grinding, drilling and
sanding fiberglass parts. Vacuum the parts and the work
area thoroughly after working with fiberglass parts.
Remember: Take your time and follow the instructions to
end up with a well-built model that is straight and true.
This is a partial list of items required to finish the “Ultimate”
that may require planning or decision making before starting
to build.
Radio:
4-channel radio (minimum), 7-channel or greater
computer radio with mixing capabilities (preferred).
Receiver:
4-channel minimum. 7 channel or greater (preferred).
Battery:
1000mAh (minimum)
Servos (IMAC type aerobatics):
Ailerons – four 50 oz-in servos
Elevator – two 50 oz-in servos
Rudder – one 100 oz-in servo or two 50 oz-in servos
Throttle – one 30 oz-in servo
Extreme and 3D aerobatics
Ailerons – four 75 oz-in servos
Elevator – two 75 oz-in servos
Rudder – one 130 oz-in servo or two 70 oz-in servos
Throttle – one 30 oz-in servo
Connectors:
Two “Y” harnesses.
Four 12" extensions.
Two or four 24" extensions.
The Great Planes “Ultimate” has been tested and flown with
the O.S. 1.60 cu in two-stroke [26cc] glow engine and the
Fuji-IMVAC BT-43EIS [43cc] gasoline engine. If you choose
another brand of engine, the following guidelines should
be followed.
1.5 – 1.8 cu in [25 – 30cc] two-stroke glow engine
1.8 – 2.1 cu in [30 – 36cc] four-stroke glow engine
1.9 – 2.6 cu in [32 – 43cc] gasoline engine
Note: The model was also tested with a DA50 gas engine
using a 20x8 prop. The model was considered over-powered
and will require throttle management for successful
operation.
The use of engines weighing more than 2.5
pounds will require corresponding balancing tail weights and
will raise the all-up weight accordingly.
Engine Recommendations
Radio Equipment
DECISIONS YOU MUST MAKE
We, as the kit manufacturer, provide you with a top quality,
thoroughly tested kit and instructions, but ultimately the
quality and flyability of your finished model depends on
how you build it; therefore, we cannot in any way
guarantee the performance of your completed model, and
no representations are expressed or implied as to the
performance or safety of your completed model.
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