The
Fast-bak is the fifth model PMP have developed for
the popular 60in EPP Pylon Racing class. Needless to say each model
has seen an improvement in performance on its predecessor. Fast-bak
is no exception. Not only is it faster and more agile but it is
easier to build and more robust. Attributes essential in the world
of model on model 60in pylon racing. Despite its pedigree Fast-bak
is also an excellent sports model, more than capable of performing
any manoeuvre that can be expected of an EPP flying wing including
continous loops (inside and out), sustained inverted flight and
with practice rolling circles.
The
construction of Fast-bak differs from normal PMP practice
in that it is a one piece model with a carbon fibre mainspar that
extends almost to the wing tip. To avoid any C of G shift the wing
ballast box is built around the balance point. It can house up to
450 grams of ballast. The Fin, which is mounted on two carbon rods,
is detachable with the leading edge fairing acting as a conduit
for the receiver aerial. Hatches are provided for easy access to
the battery, receiver and nose compartment for quick frequency changes,
nose weight adjustment etc. The control surfaces are laminated balsa
ply to improve torsional rigidity and durability. The nose section
which extends back to the front of the ballast box consists of a
substantail plywood box clad in EPP. It is very robust!
The
Fast-bak requires 2 metal geared micro servos (HS81MG
/ HS85MG or Futaba S3150 digitals) and a AAA size Rx
battery with a small receiver (Align / JR RS70 (recommended)
where the servos and crystal plugs in the end. The use of plastic
geared servos is not recommended.l
Specification
Type: Cat
4
Span: 1520mm
Controls: Elevons (Ailer/Elev with mixing)
Av Wt: 1000 - 1070 gms
Section: Modified MH64
R/C
Equipment.
Square
AAA Rx battery pack.
2
metal geared micros (HS81MG / HS85MG or Futaba S3150 ) strongly
recommended.
Switch
harness & 2 servo extension leads
4
channel Rx
Computerised
Tx or on board 2 channel Mixer
Additional
Materials Required
12
minute 2 part Epoxy and ,
Runny
Superglue,
Spray
Impact Adhesive
Sellotape
Diamond (Aileron hinge)
Final
covering material (Coloured Vinyl tape or Iron-on film)
All
the items required to build the Fast-bak including
the radio equipment can be purchased from PMP by phone or through
our on-line
shop