Rudder h 1mm alum. Retract unit mount 2 layers of 3mm liteply between 0.8mm birch ply (Total thickness 7.6mm)

Transcription

1 R Retract unit mount 2 layers of 3mm liteply between 0.8mm birch ply (Total thickness 7.6mm) Rudder post 5mm balsa Rudder h 1mm alum Seat horn on 3mm bal then edge with balsa to

2 Also applicable to tailplane R8 Sand slots for hinges before glueing both halves of spar together R10 R9 Round-off to 'soften' edge R8 R7 R6 R5 Rudder perimeter frame 0.4mm ply R4 R3 Horn seat R2 horn minium R1 lsa above R2 to support covering Fin & rudder ribs 1.5mm balsa

3 Cut centre away after planking wing root fairing T9 Rudder trim-tab core 0.4mm ply T8 T7 T6 T5 T4 T3 3mm balsa between T1 & T1 T2 T1 Tailplane & elevator ribs 1.5mm balsa (Two sets required)

4 Wing root fairing base 0.4mm birch ply (True length shown) grain Elevator trim-tab core 0.4mm ply Elevator perimeter frame 0.4mm ply CONSTRUCTION GUIDELINES FOR ELEVATORS & RUDDER Glue leading & trailing edges to one side of plywood perimeter frame. Add notched half of ribs. Part sheet one side whilst maintaining flatness. Add other halves of leading & trailing edges. Add other halves of ribs. Part sheet remaining side. Sand to finish

5 Carburettor air intake Hollowed block balsa R Wing-tip core 0.4mm ply SPITFIR First in a series of 1/ SHEET 2 MkIX Designed For 500/600

6 Radiator cowl sides 2.5 balsa adiator cowl assembly jig 3mm balsa Pin jig to wing using balsa packing such that cowl sides will be at 90 o to cowl bottom. Pin cowl sides to jig. Cyano cowl sides to wing. Remove jig. Sheet underside of cowl E 9th scale WW2 aircraft d by Dave Philpotts geared electric motors 2000

7 W3 W2 W1 Under-wing fairing 8mm balsa Exit holes for servo leads & u/c. retract tubes in top surface for this length Cut lower spar here after boxing in around retract unit Wing centre section assembly jig 2-off 10mm balsa Use in conjunction with 2 lengths of 3mm dia. piano wire approx. 250 long

8 Trapan circular cutout in underside wing sheet before assembly W1 W2 W3 W4 W5 it 3mm sq. against gusset & rib 3mm hard balsa gusset (Replaces lower spar in this area) Wheel-well from 2 laminations of 1mm balsa glued together using impact adhesive. Grain vertical. Cut slot to clear u/c. leg and retract cylinder 2.5mm balsa full depth of wing each side of undercarriage leg aperture. Start by making card template PLAN VIEW OF WING UPPER SHEETING NOT SHOWN Alternative shrouded hinge design. Requires 5mm thick fin post.

9 Servo access Underside only (Size to suit servo) W6 W7 W8 W9 Spars 3mm sq. hard balsa Leading edge from 2 laminations of 3mm balsa 2.5mm balsa false l Heat inside to assis curvature around rib Cannon from aluminium tube & balsa

10 when glueing aileron spar Laminated wingtip Balsa/0.4mm birch ply/balsa 2.4m both Temporary rib-support spar. Remove after sheeting undersid of wing W10 W11 W12 Full length lower spar. Top spar to W11 with shaped sheet balsa between W11 & W12 leading edge. st smooth ibs Wings sheeted with three panels joined on spars. With care, these two panels may be cut from one 1.5 x 100 x 1000 sheet of balsa

11 m balsa full depth of wing sides of undercarriage slot Rem afte Par W5 Remove this area to clear wheel well after sheeting underside of wing. Part-cut beforehand ide W6 W7 Cutout to suit servo W8 W9 W10 W11 W12

12 move this area to clear retract cylinder er sheeting underside of wing. rt-cut beforehand Pin-jointed leaf hinge 1.5sq. balsa local reinforcement

13 3mm ba (Not sh Sand lig Centre section sheeting 2.5mm balsa

14 Blend with filler Note inclination of W3 alsa doublers hown in plan) ightly to blend Cut lower front spar here to clear u/c retract unit after sheeting underside centre panel Balsa filler piece Alignment dowels Outboard panel sheeting 1.5mm balsa Sand before applying

15 Wing washout jig 3mm balsa Laminated trailing edge Balsa/0.4mm birch ply/balsa

16 Rem after Note flat underside to wing panels 2.5mm thick balsa unit to support un & end of lower sp Dihedral jig Laminated aileron Balsa/0.4mm birch ply/balsa Tack-glue to wing when sanding to shape IMPORTANT! A Remove this are 1.5mm sheeting rib profile and ce Remove finally a underside of cen Reduce thickness of rear spars at ends Align underside rear of W11 with inboard ribs when glueing aileron spar

17 Rem Drill 3mm holes, cut spar slots and shape profiles of W1 & W2 together as a set of four. Separate into pairs to finish Wing Rem Make W1 a box around retract nderside sheeting par Temporary reinforcemen during assembly W2 ove shaded areas r fitting u/c mounts Notch after assembly to clear air retract tube W3 ccuracy essential. ea & check for g allowance between entre section then replace. after sheeting ntre panel. W4

18 g ribs W1, W2 & W3 from 3mm liteply. ainder from 2mm liteply. ke in pairs with aid of double-sided tape nt to Chamfer allowance made on top of rib Chamfer bottom of rib Cut slots for 0.4mm ply trailing edge using junior hacksaw fitted with metal-cutting blade move this area to clear retract cylinder