Bike pedals used to put a metal screw cap to protect the bearings from contamination. Now, instead, use the plastic plugs, which are often lost. Rescue plastic or nylon tubes from medical bubbles. Such substitutes being kept quite steady.
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Still, the vast majority of models of submarines with rubber motor class EL-500 (500 mm in length) are built on the same scheme. However, the adopted version with the detachable bow and...
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"In the journal "modelist-Konstruktor" No. 5 in 1983 we were interested rabbit mini farm inventor I. N. Mikhailov: immediately appreciated the amenities which are incorporated in this...
