2
INTRODUCTION
Congratulations and thank you for purchasing the Tower
Hobbies
Ultimate
bipe. In spite of its aerobatic appearance, the
Ultimate is a cinch to takeoff, fl y and land and is unexpectedly
stable. But when you’re ready to lay down some aerobatics
the Ultimate is ready to respond when it’s time to move the
sticks to the corners!
Powered by a .46 2-stroke glow, the Ultimate fl ies surprisingly
well. But if aggresive aerobatics is your preference a 2-stroke
glow is not the optimum choice. With a 2-stroke the Ultimate
still performs all the expected sport aerobatic maneuvers
such as loops (inside and outside), rolls, point rolls, stalls,
spins, inverted fl ight and even knife-edge fl ight. Even if the
Ultimate doesn’t have unlimited vertical with a 2-stroke, a
2-stroke is still the lightest setup which you will actually be
able to feel when it’s in the air.
Because of the large propellers it can swing, the Ultimate
becomes a
monster
with a Rimfi re .55 and a 6S battery.
Performance when powered by an O.S. .72 is a close second.
For the latest technical updates or manual corrections to the
Utimate ARF visit the Tower Hobbies web site at towerhobbies.
com and visit the page for the Ultimate ARF. If there is new
technical information or changes to this model a “tech notice”
box will appear on the page.
ADDITIONAL ITEMS REQUIRED
Radio/Servos
The Ultimate can be fl own with a 4-channel radio, but a
computer radio such as the Tactic TTX650 is recommended
because of the simplicity and fl exibility a computer radio offers
in addition to the convenience of multiple model memory:
❍
Tactic TTX650 6-channel programmable radio
(TACJ2650)
❍
Tactic TR625 6-chanel receiver (TACL0625)
❍
Hobbico 2S (6.6V) LiFe receiver pack (HCAM6411)*
❍
On-off receiver switch (TACM2000)*
* If powering your Ultimate with a brushless electric motor,
you may power the receiver and servos from the BEC in
the ESC, so a receiver battery or on/off receiver switch
will be not required.
The Ultimate was designed for mini servos, but regular servos
with minimum torque of 55 oz-in [4.0 kg-cm] may be used
simply by enlarging the servo mounts in the wing and fuselage.
Tactic TSX25 mini digital high-speed 2 ball bearing servos
(TACM0225) or Tactic TSX20 mini high-speed 2 ball bearing
servos (TACM0220) are recommended.
The Ultimate may be fl own with two or four aileron servos.
With two servos, the ailerons in the top wing are operated
by pushrods connected directly to the bottom ailerons. With
four servos, each aileron is operated by its own servo. The
advantage of two servos is economy and less weight. The
advantage of four servos is increased response and precision.
TABLE OF CONTENTS
INTRODUCTION
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
ADDITIONAL ITEMS REQUIRED
. . . . . . . . . . . . . . . . . . 2
Radio/Servos . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Glow Engine & Accessories for Glow . . . . . . . . . . . . . 3
Brushless Electric Motor . . . . . . . . . . . . . . . . . . . . . . . 3
LiPo Battery Charger . . . . . . . . . . . . . . . . . . . . . . . . . . 3
ADHESIVES. HARDWARE
AND
OTHER ACCESSORIES
. . . . . . . . . . . . . . . . . . . . . . . 3
KIT INSPECTION
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
CONTENTS
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
PREPARATIONS
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
ASSEMBLE THE WINGS
. . . . . . . . . . . . . . . . . . . . . . . . . 7
Install the Aileron Servos . . . . . . . . . . . . . . . . . . . . . . . 7
Hook Up the Ailerons. . . . . . . . . . . . . . . . . . . . . . . . . . 9
ASSEMBLE THE FUSELAGE
. . . . . . . . . . . . . . . . . . . . . . 9
Install the Horizontal Stabilizer
and Vertical Stabilizer . . . . . . . . . . . . . . . . . . . . . . . . . 9
Hinge the Elevators and Rudder . . . . . . . . . . . . . . . . 11
Hook Up the Elevator and Rudder. . . . . . . . . . . . . . . 13
Mount the Motor . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Mount the ESC. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Mount the Engine. . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Install the Fuel Tank . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Hook Up the Throttle . . . . . . . . . . . . . . . . . . . . . . . . . 19
Mount the Cowl . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Finish the Radio Installation. . . . . . . . . . . . . . . . . . . . 22
Mount the Main Landing Gear. . . . . . . . . . . . . . . . . . 23
Attach the Belly Pan . . . . . . . . . . . . . . . . . . . . . . . . . 24
Assemble the Canopy Hatch. . . . . . . . . . . . . . . . . . . 25
Mount the Wings . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Make the Aileron Pushrods . . . . . . . . . . . . . . . . . . . . 30
PREPARE THE MODEL FOR FLIGHT
. . . . . . . . . . . . . . 30
Apply the Decals . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Set the Control Throws . . . . . . . . . . . . . . . . . . . . . . . 30
Check the C.G. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Balance the Model Laterally . . . . . . . . . . . . . . . . . . . 31
PREFLIGHT
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Engine/Motor Safety Precautions . . . . . . . . . . . . . . . 31
Propeller Selection for a Brushless Motor. . . . . . . . . 32
Battery Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Range Check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
AMA SAFETY CODE
. . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Radio Control. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Know Before You Fly . . . . . . . . . . . . . . . . . . . . . . . . . 34
FLYING
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
