Abstract :
A propeller is a collection of blades that transmit power by converting rotational
motion into thrust. This happens due to the difference in pressure generated between the
front and rear surfaces of the blade in the form of an airfoil, and the fluid flow velocity at
the rear is lower than the front so that it will produce a forward thrust.
The purpose of this study was to determine the results of the manufacturing and
testing process for hybrid composite propellers reinforced with unidirectional fiberglass
and woven roving. Then the results of the manufacture and testing of the propeller will be
compared with the nylon propeller from the factory.
The propeller manufacture is carried out using the hand lay-up method using
lycal 1011 resin with a geometry of 9 × 6 and for testing the propeller using the Turnigy
D3536/6 1000kv engine assembled on a digital scale. Where when the engine is turned on
the propeller will press down so that it can be seen on the digital scale how much the
thrust value is generated.
The results showed that after printing the propeller was made thicker than the
size of the nylon propeller which was used as a mold reference. At the time of testing, the
thrust generated by the hybrid composite propeller reinforced with unidirectional
fiberglass and woven roving at high throttle was greater than that of the nylon propeller
of 8.124 N