Stunt or combat engines?

[HemiGTX]

I picked up a couple stunt planes that came from an estate.  I suspect that the gentleman who built them never really intended to fly them as they look like they are ready to go, until you take a closer look.  Two of the stunt models have engines that may be more appropriate for combat.

One engine is a Torpedo .35 that has the exhaust stack on the left side.  The other one has a Fox .35X with a two piece square venturi.  It appears to have ball bearings and has a larger crankcase and mounting bolt pattern than a Fox .35 stunt.

Are these more oriented toward combat? 

Thank you!

[Dan McEntee]

  If the Torpedo is a green head, all the exhausts were on the left side. I don't know if i have ever heard their reasoning for that. If mounted upright or inverted, no problem, but if on a profile with the engine outboard, the exhaust points up and the engine can load up and flood easily.
  The Fox is definitely a combat engine. I have seen this before in old models, where I think the original builder just thought he could use the extra power. In the old days, they really didn't define "power" by what event you were flying.
   Type at you later,
   Dan McEntee

[Ken Culbertson]

I picked up a couple stunt planes that came from an estate.  I suspect that the gentleman who built them never really intended to fly them as they look like they are ready to go, until you take a closer look.  Two of the stunt models have engines that may be more appropriate for combat.

One engine is a Torpedo .35 that has the exhaust stack on the left side.  The other one has a Fox .35X with a two piece square venturi.  It appears to have ball bearings and has a larger crankcase and mounting bolt pattern than a Fox .35 stunt.

Are these more oriented toward combat? 

Thank you!

I have had both. The Torpedo was used a lot for stunt in the 60's.  Was used a lot on profiles around here for who knows why.  As Dan pointed out, it's easily flooded BUT, I figured out how to put just the right prime through the exhaust and bump start it.  Upright they are OK but still not that great for stunt.  I have used a Fox 36x on a stunt plane, but I don't recommend it.  It wants to run on pressure with a big venturi.  Hard to slow it down and too heavy.  Top line combat motor in its day though.

Ken

[HemiGTX]

Thank you for the information.  The Fox was mounted inverted and I’ve swapped it out for a .40LA.  The Torpedo is indeed mounted on a profile Stuka Stunter.  It has a tongue muffler, so I could fly it at my field if I can get it running.