Metalwork - Exam Papers - HL - Project - 2009

150 Marks

Details of a Model Aircraft are shown on the accompanying drawing.
Make and assemble the Project using the materials specified in the Parts List.
Design and make a Castored Nose-Wheel and a Battery Holder for the model. These should be integrated as a unit. The integrated unit when secured within the fuselage should ensure that the model is in a horizontal position.
(Note : 20% of the marks will be awarded for this section.)
Complete, test and solder the Electric Circuit.
Your Examination Number must be clearly engraved on the top surface of the Tailplane (Part 10).
Your completed project, clearly identified with your Examination Number, must be available to the visiting examiner along with the necessary testing equipment (battery or transformer).

Part No.	Part Name	Required	Material and Description
1	Control Panel	1	Coloured Acrylic
2	Fin	1	Brass or Copper (Polished)
3	Wing	1	Aluminium, Brass or Copper (Polished)
4	Fuselage	1	Copper (Polished)
5	Right Undercarriage	1	Aluminium (Polished)
6	Left Undercarriage	1	Aluminium (Polished)
7	Wheel	2	Nylon or Acetal
8	Windscrees	1	Clear Acrylic
9	Noseplate	1	Aluminium, Brass or Copper (Polished)
10	Tailplate	1	Brass or Copper (Polished)

Part No.	Part Name	Required	Material and Description
11	M3 x 8 Pan Head Set Screw	13	Brass or Steel
12	M3 x 20 Pan Head Set Screw	2	Brass or Steel
13	M3 Hex Nut	17	Brass or Steel
14	Switch	2	5mm Toggle
15	Potentiometer	2	5 Watt, 50Ω, Wire Wound
16	Control Knob	2	To suit Potentiometer
17	Motor Holder	2	To suit Motor
18	Motor	2	Ø 24 x 27
19	Propellor	2	3 Blade Type (Modify to Ø80 mm)
20	Battery Clip	1	PP3
21	Remote Lead	1	1 Meter, Ribbon Cable (Use 3 Strands)
22	Insulated Wire		As Supplies

Part No.

Part Name

Required

Material and Description

23

Caster Nose-Wheel & Battery Holder

1

As Designed

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