•
UP2/UP4 combination, similar to F-15
•
Electronic sequencers with dual door capability
•
A single door sequencer, with a button switch for
the nose gear doors. In this configuration, the
main gear doors open and close via a sequencer,
while the nose door is tied into the servo air lines.
The line that connects to the cylinder to open the
doors is simply connected via “T” fitting to the gear
extend line. The door close line is similarly con-
nected to the gear retract line, with the addition of
a button switch that doesn
ʼ
t allow the cylinder to
pressurize until the gear is in the fully retracted po-
sition. This is the method illustrated in this manual.
Equipment Layout
This is a matter of personal preference. The aircraft illus-
trated here uses the following approach, fully illustrated in
Appendix B.
•
Mainboard, supplied with kit: receiver, voltage
regulator and ECU. The fuel pump and solenoids
are mounted underneath the board.
•
Fuel tank former, made up from scrap ply: Retract
and door valves, speed brake valve and tail hook
valve
•
The brake valve may also be mounted to this
board, or Velcroed to the side of the fuselage adja-
cent to the fuel tank. This provides a short servo
run to the receiver.
•
Length of servo extensions will be determined by
the final location of your receiver.
Channel Assignment
The following 12 channel assignment was used on this
model:
1. Throttle
2. Elevator (uses mixer)
3. Ailerons (uses mixer)
4. Rudder
5. Gear
6. Wing Flaps (uses mixer)
7. Split Flaps (uses mixer)
8. Wheel brakes
9. Nose gear steering
10. Speed brake
11. Tail Hook
12. Canopy
Construction Sequence
•
Horizontal and vertical stabs
•
Air systems
•
Fuel systems
•
Split flap system
•
Pipe and engine
•
Engine components
•
Wings
•
Receiver and electrical
•
Cockpit, canopy and scale details
Note: the servo extensions are run as the construction
progresses.
Introduction
Der Jet F9F-8 Cougar Page 5
