RHS

RHS

F1

F2

F3

F4

F5

F6

F7

F8

B1

Flat template

fold as shown

Rudder clamp:

C4

C9

C1

C3

C2

C2

C5

C6

2mm Balsa sheet sides

Servo

2mm sheet reinforcing for cowl screws

vac formed canopy

2mm ply wing bar reinforcing

hole for servo wire into wing

2mm ply reinforcing

F2b

9'' x 6 Electric prop

Top view of wheel spat

Undercarriage detail , make from 1mm sheet aluminium

or covered piano wire

Thrust line

Wingspan 40.5 " / 1030mm
Flying weight 26.5oz / 750g
For Brushless outrunner and 11.1V Li-Po
Requires 112 W / pound
[Recommended motor KM 0283010
with 10" x 6" electric propeller]

Extra 300 EP

Vertical stabilizer from 4mm balsa sheet

Servo

Servo

Servo

C6

B1

2mm ply

Drawn by: Roger Hardie - Industrial design.

[e-mail]

www.rogerhardie.com

9.5mm Dia Alluminium tube

Hole for cup hooks from wings

Servo

W1

W1b

W2

W3

W4

W5

W6

WS

A6

A5

A4

A3

A2

Cup hook
to hold wings in place

Servo

W1

W1b

W2

W3

W4

W5

W6

WS

Cup hook
to hold wings in place

1"

1cm

Horizontal stabilizer from 4mm balsa sheet

hole for dowel

Fuselage access cover front rib

C1

C6

C5

F7

F8

F5

C4

Headrest
Foam/balsa

F6

F2

C2

F2

F2b

F3

C3

F1

Battery tray
2mm ply

C9

Access hatch bottom
Foam /Balsa

LHS

Motor mount

RHS

W1

WS

Servo

A2

W4

A4

W5

A5

W6

A6

W3

Servo

A3

W2

W1b

All ribs from 2mm balsa sheet

except F1b from 3mm balsa sheet