Ultimate Jets
- Phoenix Mk2 assembly manual - Revision 2 - 08/11/2013
Center of gravity
You'll need two 2200 Mah b one ECU battery of the capacity recommended by the engine
manufacturer to get the correct position of the Centre of Gravity.
Note :
balance the model with the gear down and the tank empty but air trap full.
The center of gravity (CG) must be located at 140 mm to 150 mm rear of the wing leading edge (wing
root)
The aircraft must adopt a slightly nose down attitude when balanced. If it is horizontal or the tail drops,
move the battery forward or add weight in the nose.
On the other hand, if the nose drops considerably add weight in the tail.
140 mm is the maximum forward CG position. 150 mm is the maximum aft CG position.
Total weight
The total weight of the Phoenix should be 7.5 kg dry. The tank capacity of 2.2 liters permits a flight
endurance of 6 minutes with our Merlin M100XBL ( with an additional go-around reserve of 2 minutes
). This engine represents the optimal choice in terms of fuel consumption to weight ratio for this plane.
For more hard core 3D aerobatics we'd recommend our BF-Turbines B100F that outputs 120N of thrust
in the same form factor. However the fuel consumption is higher and the endurance will be reduced to
5 minutes.
Important note :
Pay a very careful attention to structural integrity. This jet can reach speeds of
over 400 KPH - 250 MPH. It is your responsibility to operate it safely.
Specifications may change without notice.
240 mm
to 255 mm
140 mm to 150 mm
5.5 to 5.9 Inches
CG
CG
