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STEP 64
The cowl should just overlap the front of the fuselage.
Carefully pilot drill the cowl and firewall and retain the cowl
with four self tapping screws; two on each side. Fit your
propeller and spinner, then cut a suitable aperture to fit your
radio's switch to the left hand side of the fuselage. The model
is complete and ready for balancing and setting up the control
throws.
Control THROWS
For initial flights, we recommend the following control throws - each measured at the widest point of the surface:
Elevator:
18mm up
18mm down
Rudder:
Maximum possible each way - 25mm+ each way
Ailerons:
15mm up
15mm down
BALANCING THE BULLET
The Centre of Gravity (C/G or Balance Point) should be 80mm +/-5mm (3.25" +/-0.25") back from the leading
edge of the wing at the root. This should be measured with the fuel tank empty. Support the completed model
under the wing either side of the fuselage at this point and add weight or adjust the position of the radio battery
in its bay as necessary to achieve a slightly nose down attitude. A model that is not correctly balanced will not
perform as it should and, at worst, be unstable or unflyable, leading to damage to the model or injury to yourself
or others. Do not miss out this step in completing your Bullet!
Pre-flight checks
•
Completely charge your transmitter and receiver batteries before flying.
•
Carefully check your model over to ensure that all screws are tight and everything is well bonded.
•
Double-check the Bullet's Centre of Gravity.
•
Check the control surfaces for both the correct throw and direction. Ensure that each surface moves freely,
without any binding.
•
Check the receiver aerial(s) are correctly installed.
•
Ensure the wing bolts are tight.
While the Bullet is not suitable as a first model, it does make an excellent second low-wing model with reduced
control throws and an engine from the lower end of the range. In this case, we recommend that your completed
model is checked over and test flown by a competent pilot first. Subsequent flights should also be supervised, and
assisted where necessary, by an experienced pilot. Always fly the Bullet in a safe location at a recognised club.
For further information on flying in the UK, please contact:
British Model Flying Association (BMFA)
Chacksfield House,
31 St Andrews Road,
Leicester. LE2 8RE.
Tel: (+44) 116 2440028 Fax: (+44) 116 2440645
www.bmfa.org
SPARE PARTS AND SERVICE
Spare parts are available for the Bullet ARTF from all Ripmax stocked model shops. In case of any difficulty, any
product queries, or to locate your local Ripmax stockist, please write to the address below or visit
www.ripmax.com
Always fly responsibly and safely.
Page 15
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