Spotlight: O.S. GT15HZ Gasoline Engine

(1:49)

Goblin 570 - GT15HZ Gasser with Axial Cooling System

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HeliXheli Trex 600 OS GT15 conversion

(2:38)

Raptor 90 3D with OS GT 15 HZ

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OS GT15HZ test

(1:17)

OS GT15HZ test

(1:2)

OS GT15HZ with G5 glow plug

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T-REX 700 Nitro Pro OS GT15HZ Vol.2 RC Helicopters flight outdoors

(5:15)

Trex 700XN (OS GT 15 HZ II) flywing H1 gps engine setting \u0026 break in 1

(5:40)

Miniature Aircraft Interceptor 600 with OS MAX GT15HZ II

(4:49)

How to adjust the O.S.GT15HZ carburettor(English Version)

(8:17)

T-Rex700 running the new OS GT15HZ Gasoline motor

(10:1econd)

OS GT15HZ with 12x6 prop.

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O.S. GT15HZ油針調整觀念

(2:26)

Trex 700 Nitro running the OS GT15HZ

(8:27)

OS GT15HZ in T-REx600N Conversion Airframe

(2:3)

Thunder Tiger Raptor G4 running a OS GT15HZ and Powerboost Exhaust Maiden Trim Flight

(13:54)

OS GT15HZ Helicopter Gas Engine maiden flight

(2:40)

G4 with OS GT15 HZ on the Clarence Slow Head Speed

(1:10)