The engine PC7 well has recommended itself in a season 2006. Fast, strong, fine start-up. It is unpretentious to weather. Propeller, candle, motor-frame and мафлер - in the complete set. Support by spare parts in any region. And now and РС7М - with the normal radical bearing but same powerful and fast !
On standard fuel (10% nitra, 20 % castor oil, 70 % metanol) the motor twists a propeller of "Seryogin", it is which 162 mm in diameter, bend above a lighter on corners: 160-8, 140-10, 120-14 degrees, RPM 32000 (on 3000 it is more PC6), also flies 22-23 s on the extended hand, and "flies into a rage" in figures. Weight - 115 g. The charge of fuel - eats a full Petersburg syringe for 5 minutes.
The head densely grind in a sleeve individually as the piston on 3 mm, also is condensed on diameter, instead of on an end face (on an end face it is very bad - the slightest mote - and it is necessary to tighten the head with all make a fool that did not persecute, and then it is difficult to turn off, and even in general lifts up a groove from pull over). The cone of the head allows to remove and insert easily it into a sleeve at replacement of linings. New jet and new direction of submission of fuel in a crunk case has allowed to level a mode in direct and return loops. The reliable import radical bearing 12х21х5 with a plastic separator and the increased radial backlash is used. The rod is made of a heavy-duty import aluminium alloy, material of the top cartridge strong and slippery bronze, a material of the bottom cartridge - an antifrictional strong aluminium alloy 229. The piston is made of the most expensive, strong, high-silica (30%) a german alloy Dispal 226.