Accessories; Recommended Servos; Extension Leads - Carf-Models Ultra Flash Instruction Manual

This is a list of the main additional items you will need to get your CARF Ultra Flash into
the air. Some of them are mandatory, and some can be chosen by you. What we list here are
highly recommended items, and have been thoroughly tested.
1. Power servos (min. 7). All main flight surfaces require a minimum 8kg digital servo, such
as the excellent JR 8311/8411, and these are what the Ultra Flash was designed for. The
Futaba S9351 is an alternative for the ailerons, flaps and rudder. See list below.
Turbine engine set. Recommended thrust range 8 - 12kg (18 - 27lbs). The Ultra Flash is
2.
designed for a maximum turbine thrust of 120 Newtons. Please do not exceed this.
Retractable Landing gear set (C-ARF product #670500). The Flash is designed specifical
3.
ly around the high-quality Behotec C-36/2 set, and this includes parts designed specially
for the Ultra Flash. Set includes trailing link noseleg, and Intairco main wheels and brakes.
4. Retract & brake valves: The Behotec combined retract/brake mechanical valve included
in the landing gear set works perfectly and is efficient with air volume used. However you
can use any valve type that you chose, and CARF can supply the proven 'Jet-tronics' elec
tronic brake and retract valves as an option.
5. Batteries and extension leads (see list below for JR extension leads required).
6. Powerbox Sensor switch. A highly recommended item which combines 2 voltage regula
tors with 2 separate electronic switches for connecting 2 separate batteries to your
receiver. Available from C-ARF as an option. Product # 960600.
7. Heavy duty plastic servo arms (8 pieces).
JR part #JRPA215 or Graupner # Nr. 3544.

Recommended Servos:

Ailerons
Flaps/speedbrakes
Elevators
Rudder:
Nosegear steering:
Retract/Brake valve: 1 x
If you choose alternative servos of similar quality and torque for the main flight surfaces, for
example Futaba S9351, you might have to adjust the cnc milled plywood servo mounts a little.

Extension leads:

If using the JR/Graupner servos listed above, installed as recommended, you will require the fol-
lowing length extension leads to reach the normal receiver position under the cockpit.
Elevator and rudder servos; 3 x 1050mm, 1 x 180mm and 1 x 320mm
Flaps and Ailerons: 4 x 550mm (in wing) and 4 x 180mm from Receiver.
Standard RX battery cable lengths will reach the Powerbox 'Sensor' switch in the recommend-
ed position, as will standard Turbine fuel pump and Turbine battery cables.

Accessories

2 x JR/Graupner 8411
2 x JR/Graupner 8311 or 8411
2 x JR/Graupner 8321/8311/8411 (max. thickness 19mm)
1 x JR/Graupner 8311 or 8411
1 x any standard-sized, metal output gear, servo with min. 5 kg torque.
mini-servo, min. torque 2.5kg.(eg JR/GR3041, 3241, 361 etc)
6