A large battery compartment
can accommodate different
sizes and configurations of
The EDF unit and
ESC are accessible
via a belly hatch.
The author chose to
balance the fan unit.
edge of the wing to where it meets the
fuselage. The battery had to be pushed
all of the way back and resulted in a CG
at approximately 28mm.
When ready for takeoff, the F- 104
looks intimidating with those tiny wings.
The thought running through your
head might be, “Will it fly with those
runway, I had some concern that the
model would not be able to accelerate
and lift off of the grass.
With the flaps down and the throttle
stick advanced, the model reached flying
speed and lifted into the air. The landing
gear and flaps were retracted. Only a
few clicks of aileron trim were needed to
get the aircraft settled in.
The recommended control throws
and CG location were spot-on. The roll
rate is fast with the small wingspan, but
maintaining orientation when turning
can be difficult. The
jet responds well to
rudder when turning, so
feeding in rudder at that
time will keep the nose
pointed into the turns.
Landing the F- 104
was not as hard as I
expected, but using flaps
to slow it down is highly
elevator flap mix allows
flaps to come down with
no pitch changes. I found
it best to keep a little
speed on landing and
add throttle just before
touchdown to lower the
vertical descent speed.
The recommended 6S
4,000 mAh LiPo battery
felt heavy, so I changed
to two 3S 2,200 mAh
Admiral Pro 45C LiPos
and a series cable to join
them to make a 6S 2,200 mAh. The
weight savings made for a shorter takeoff
roll and slower landing speeds. I still get
3 minutes of full-throttle flying, and 3S
2,200 mAh LiPos are easy to come by.
For a little more speed and a flying
challenge, you can quickly remove the
tip tanks by loosening four screws. The
roll rate will now be much higher with
the tip tanks off, so make sure to reduce
the aileron throws or you will have a
Freewing Model has made a real
winner in this F- 104 Starfighter 70mm
EDF Jet. The stock power and speed are
impressive right out of the box. It is easy
to build, and those small wings make
everyone smile when you show up at
the flying field!
Freewing Model/Motion RC
52 Model Aviation MAY 2016