, you will probably have to use 16
strands, which again adds to the weight, and makes one travel in a vicious
circle. Therefore I lay emphasis on the advice, Keep down the weight.
The front edge of the elevator should be set about 3/8 inch higher than the
back, and the model be tried first as a glider, with the rubber and
propellers in position. If it glides satisfactorily, wind up the motor, say
500 turns, and launch by hand. When a good flight has been obtained, and
the correct angle of the elevator has been determined, place the model on a
strip of linoleum, wind up, and release the propellers. The model should
rise in its own length and remain in the air (if wound up 900 turns) at
least three quarters of a minute. Choose a calm day if possible. If a wind
blows, let the model face the breeze. Remember that the model flies high,
and select a wide open space. Do not push the model forward; just release
the propellers, held one in each hand near the boss by the fingers and
thumb. As a lubricant for the rubber use pure glycerine. It is advisable to
employ a geared-up mechanical winder, since to make 1,800 turns with the
fingers is rather fatiguing and very tedious.
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