For fixing the film during drying, usually use special clothespins or clips. But if these instruments are at hand does not, they will replace ordinary paper clip.
Recommend to read
NO GASOLINE NEEDED
Most of the vehicles I built were based on mass-produced noisy and "fuel-guzzling" motorcycle or bicycle internal combustion engines. This was convenient on one hand, but very troublesome...
RECOVERY SYSTEM — “ROTOR”
Only four of the class includes one of the most "fresh" categories of model rockets — on the duration of the flight with the rotor — S9. The competition in this category will start only...
