OS 55 and 15x4 Zinger Pro
OS 55 and 15x4 Zinger Pro Engine has been broken in using OS proceedure; with about 6 flights
of about 5 min duration. I think it was set up a little richer than normal. Obtained 8900 but very
sure it will be higher when fully broken in. It is mounted on an Sig Kadet Senior Arf with a
Dave Brown mount. Took a fair amount of filing on various places to get it to fit.