electric Lancaster belonging to Davie Gray was built by Davie
and Charlie from the Penicuik & District Model Flying Association
near Edinburgh and made it's first flight on 7th June 2005.
The model started life as a Priory
Models kit, purchased during an annual trip to the Woodvale Rally for
a very reasonable price of £75 for the kit plus £12 for the four electric
motors. Not bad for a fair sized model that looks and flies like the
The model wingspan is 72" and it's
constructed from veneered foam fuselage half shells with 3 veneered
foam wing panels. Some additional ply and balsa sheet is used for the
fuselage wing seats and tail surfaces and the kit comes with balsa
nose block and clear canopy/gun turrets. Some modifications were made
to the fuselage hatch arrangement to suit the equipment used.
Model weighs 4lbs 12oz and is
painted in black/dark earth/dark green camouflage colour scheme. Covering
is tissue applied with thinned Ronseal floor laquer (Ronseal Quickcure
1 pack silk, thinned with water) followed by a further unthinned coat
of laquer then rubbed down. Around 10 small cans of Humbrol Modellers
Spray paint were required to give a very realistic finish.
The model is powered by four 6v speed
400 motors running off a Li-Poly 11.1v 5000mAh flight pack!! Davie
doesn't believe in small capacity flight packs it seems! Motor life
might not reach pensionable age with all that voltage but at £3 each
and easy installation that's not too much of a problem. Props are small
5" 'Gunther' type and work extremely well.
A magazine review of this model appears
in the March edition of RC Model Flyer where the flight pack used is
an 8 cell 3300mAh one. Priory Models recommend an 8 cell 2400 mAh flight
pack for 8 - 12 minutes flight time.
3 channels are
used for aileron. elevator and ESC. Ailerons have a micro servo each,
installed in the motor nacelles (clever idea) with a further micro
servo for elevator. Motor control is via a 50A ESC with the motors
drawing around 32 Amps.
First flight was excellent and went
very smoothly. With all four motors singing and a firm hand launch
the Lanc climbed upwards at a nice scale speed. Cruising at 1/2 throttle
(or the electric equivalent!) the model flew numerous circuits and
low passes for around 10 minutes before being landed to applause with
motors still running. With no undercarriage, the depth
of the engine nacelles gives enough clearance for the small
props to keep running while the model is on the ground.
A brilliant first flight with several
pilots trying the sticks and commenting on how well the Lanc flew.
Well done Dave and Charlie.
Thanks to Davie for the model details and Lord Mackie
of Mackie Photographic Enterprises for the pictures.
Useful related web site links...
Penicuik & District Model Flying Association
Radio Control Model Flyer magazine
to BDMFC Electric flight section