Ums Evolution 735 First Run

UMS Evolution 735 first run

UMS Evolution 735 first run short

UMS Evolution UT735 tuning and learning

Evolution / ums 7 cylinder radial engine 77cc test run on glow fuel

Sternmotor UMS 735

Evolution 735 Radial running

Evolution 7cyl 35cc radial engine

Evo 35cc radial running in

UMS Evolution slow running

Kiyoshi Taniguchi

UMS-Evolution 7-35 Radial Engine Test Run

UMS radial 160cc Evolution Horizon Hobby Sternmotor

Hannes Lutzenberger

UMS 210 Radial First Run

Evolution UMS 7-35 radial

Maxford PT-17 with UMS Evolution 7T7-35cc 7 cylinder motor

Wind Catcher RC

UMS / Evolution Radial Powered R/C Sopwith Triplane

35 cc evolution radial engine first start test run. Tom Richards

Star shaped 7 cylinder UMS Evolution UT7 35 radial engine internal structure and design

UMS Evolution UT7-35CC

Kiyoshi Taniguchi

UMS 90 cc 7 cylinder radial

UMS Evolution 7-77 Radial