Page 452 - eProceeding for IRSTC2017 and RESPeX2017

Mohamad Firdaus / JOURNAL ONLINE JARINGAN COT POLIPD

Table 1. Justification material selection for the main body [8]

Materials Pros Cons

Balsa wood  Porous  Varying strength
 Less glue  Very expensive
required
 Lightweight
 Widely
available
 Stiff
 Easy to sand
Basswood  Won’t crush  Hard to sand
 Lightweight  Not widely available
 More expensive
Depron foam  Very  Not very strong
lightweight
 Easy to shape
 Flexible
 Very cheap
Plastic  Strong  Rigid
 Rigid  Hard to work with
 Expensive
 Relatively heavy
Metal  Very strong  Very heavy
 Rigid  Expensive
 Hard to work with
 Not widely available
Fibre glass  Very strong  Very expensive
 Very  No previous experience
lightweight  Not widely available

Depron foam was chosen as the base frame material due its low cost and easy fabrication properties, despite Fiber Glass which
having a significant strength to weight advantage. The aluminum box are put in the wing for tilt rotor and the body is covered by fibre
glass composite.
Table 2. Justification for Propeller selection [8]

Propellers Pros Cons

Dual Blade  Easily  Larger diameter
available
 Very efficient
 Easy to use
 Fairly cheap
Multi Blade  Smaller  Less available
diameter  Less efficient
Wood Blade  Very rigid  Breaks easily
 Efficient
 Light
APC Blade  Don’t break as  Heavy
(Metal) easily
 Efficient
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