ORIGINAL: Missileman
ORIGINAL: PipeMajor
I just sold a NIB OS .46 FX but kept my Thunder Tiger .46 Pro - mainly because of the needle valve. The OS has a remote NV which you can't rotate the orientation other than horizontal. I'd have to cut into the cowl of my trainer to accomodate the OS. The Thunder Tiger has a conventional carb mounted NV which is angled back and plenty far enough from the prop for safe operation - and NONE of us EVER reaches OVER the prop to make adjustments, do we?
The OS 46 AX can rotate the Remote Valve to 2 positions. horizontal or vertical. I have the one in my Kadet Senior vertical just to avoid making another hole in the cowl.
One other advantage of the 46 AX over the old 46 FX. On the FX the needle valve mount was cast as part of the engine backplate. Most crashes would break that mount off requiring a new backplace (~$15). The AX now has a metal mount that bolts on to the backplate. Crashes will simply bend back the mount, and if it does break it's a lot cheaper than an entire backplate.
Ken