78” EDF Vulcan Build photos
Just some of the useful tools needed plus a quality razor plane
FUSELAGE
Note: Fitting parts back to front is an easy mistake to make with this build, so mark all part with
top/bottom to avoid incorrect fitment
From 3mm sheet balsa, make up the ‘starting piece’ and pin over
Add W1 and FF3 & FF4
Add W3
Add the spar- use clamps and wing spars to keep W3 straight and true
Fit two sheeting pieces to the rear to secure the ribs
Turn upside down
Make up FS2 & FS2A
Fit FS2
Add WS3
Add the front spars
Turn right way up & fit front spars
Start sheeting the top of the fuselage
Remove hatch piece on W1
Add motor mounts to suit your choice of Fan unit
From scrap 6mm lite ply, make up and fit the battery support tray to suit your choice of batteries
Begin to sheet the underside and mark the position of the radio access hatch
Add EX1 at the correct angle
Add the fan units and make up the thrust tube
Continue sheeting
Add 6mm sq between FS2 and FS3 and EX1 to support edge of sheeting
Make up the nose section
Add the nose section to the main body
Add the air intake leading edges
Continue sheeting
Add 6mm sq balsa along the top to provide secure edge for sheeting
Mark out fan access hatch
Cut access hatch
Line hatch on three sides with 9x3mm stripping
Make up nose wheels frame opening and fit
Shape air intake leading edges with sanding block
Sheet the nose section up to F6
Continue to sheet underside
Continue to sheet top side
Cut slot for F16
Fit F16 at the correct angle
Mark out formers F7 to F14
Fit F14 at the correct angle
Make up the tail boom and fit
Add the top 4.5mm sq stringer
Add turtle deck sheeting
Lower infill piece
Use lightweight filler to blend turtle deck into fuselage
Sheet tail boom
Cut slot and trim so fin fits snuggly
Test fit but don’t glue the fin into position yet
WINGS
Chamfer & notch the lower main spar for W10, 11 7 12
Add W3A
Add W4 & W5: note 0.8mm balsa spacing between to allow the saw blade to cut through
Add remaining ribs and then top spars
Add stub leading edge
Add inner lead edges and trailing edges
Check phenolic tube fits
Add the lower forward spar
Add the retract mount and trim flush the face of W3A
Trim and test fit the from tube spar
Trim tube edge
Test fit before gluing wing on to the fuselage. Note: a small piece of fuselage sheet removed
Glue the out phenolic tube to WS1
Sheet the top of the wing
Blend 3mm fuselage sheeting into 2.4mm wing sheeting
Strengthen corners
Add servo mounts and wiring
Sheet wing underside
Cut through the wing between W4 & W5
Clean up edges and add aluminium tubing to check fitment
Add outer leading edges and wing tip block
Shape leading edge
AIR INTAKE
Join sheets of soft 1.5mm balsa sheeting together and form a tube
Wet the outside of the tube then ‘squash’ in to place.
FIN FILLET
Glue fin into position
Mark and glue into position T7 & T8
ELEVATORS AND ELEVONS
Inner Elevator
Note profile
Outer Elevons
Make up hatches (Battery Hatch)
Radio access hatch
FINISHED MODEL
Decals available from Pyramid Models