49” vulcan- ducted fan version build photos - tony nijhuis … · 2014-09-22 · 49” vulcan-...

49” Vulcan- Ducted fan version build photos

Some of the useful tools, glues and fillers required…plus a quality razor plane

Make up W1

To avoid confusion, mark top of W2

Line the edge of FS1 & FS2 with 3mm sq Obechi strip

Check fan unit fits

Run white glue round the edges to add extra support

Make up the thrust tubes from 140micro acetate or A3 laminating pouches (heat sealed)

Cut from 9mm reinforcement pieces RF1 (template on plan)

Remove sections of under sheeting and top sheeting to allow duct to sit in outlet ring ER1

Worth installing speed controller and wiring motors and battery leads and fit ER2

Sheet under side between ducts

Sheet the rear tailpipes on the underside between ER1 & 2 (templates on plan)

Glue fan locking pieces (scrap 6mm sq) to fan casings or use silicon sealant to secure

Make wiring holes as required

Continue sheeting underside

Nose fuselage section

Sheet the fuselage underside (note; sections left out to assist joining of wing spar)

Fit air intake leading edges

Nose retract mounting rails (if required)

Duct support piece fitted (from 6mmsq balsa)

Front duct support

Continue to sheet

Underside sheeting. Note curve edging

Nose sheeting (template on plan)

Wedge shape infill piece

Test fit faring piece, but don’t glue

Continue to sheet nose section

Make up a nose block from laminating 12mm balsa

Measure and mark on the turtle deck former. Note the slot cut through top & bottom sheeting to

take F15

Fit the turtle deck formers using a rule to check alignment

Add stringer and using template, cut a pair of side pieces

Make up the rear fuselage section

Cut a marker slot for T6

Intake duct tube(from soft balsa) wetted on the outside to assist roll (template on plan)

Sliced at an angle to form two ducts

For the ducted fan version, trim the back edge to the angle to the 6mm x 3mm spar line

Gently offer into opening (still wet)

Trim edging and offer up intake fairing

Glue and blend in filler

Wings

Chamfer and slot bottom spar as detailed on the plan

Fit spar and add ribs

Add trailing edge

W3 to sit perpendicular then add front top spar

Add centre inner leading edge

Add remaining leading edge piece

Retract mounts (if required)

Trim slot in W2 to accept wing spars

Butt glue wing structure to fuselage using epoxy or white glue

Wing spar glued on to fuselage spar

Sheet top wing first. Remember to run all servo wiring at this stage

Sheet bottom wing

In-fill left out sections in fuselage underside

Sand flush

Cut away access retracts and elevon servos

Add outer leading edge

Blend wing the fuselage with filler

Profile leading edge

Make up, fit and profile wing tips

Make up inner Elevon

Make up outer elevon

Joint method of inner to outer to make split elevon

Fin and Rudder

Fin built up over the plan

Sheeting the fin. Note the profile and slot

Rudder make up

Trim away top of turtle deck as show to allow fin to recess

Fin glues into position and fillet formers added

Edge framing for the VAC formed cover

Use lightweight filler to blend in joints

Nose retract installation

Main retract installation

Optional Rudder installation

VAV forms access hatch

Battery Hatch cover- tongue slides under sheeting

Battery hatch secured with a single screw