There are two that I've heard of, no experience with either--Brodak .061 and Wasp .061.  Don't know if they're equal to the Norvel or not.  I think the Wasp is supposed to be a clone?  Somebody here will know.

--Ray

To the best of my knowledge you really don't have to have a motor with an attached tank. After all people have used Cub 'B', Wen Mac, or any of the other early motors. But to the best of my knowledge you cannot use a Norvel 049 as it does not fit the rules about porting.
Dennis

...at the Musciano meets, you mean.  "OT Stunt" was mentioned in the original post; I didn't even think about the very specialized Musciano contests. No doubt what you state is correct.

But if the intent is other more general contests, any engine will qualify.  And, it's true that you don't even need a tank-mounted engine; any of the Musciano models can be modified for beam mount engines.

--Ray

Ray, Thanks, I looked at the Brodak.061, I think thats my choice and since I'm not going to enter this plane in a contest I will use your suggested method. Your attachment shows there is room for a small 1/2 size tank.
I fly .35-.46 size planes and forgot how little fuel the 1/2A type engines use.
Thanks for posting the picture it is worth a thosand words.

Wing, who sells the Wasp and are the Norvel tanks still avaliable, very viable alternative if the tank mount is still avaliable.Thank you for the input

Jerry

Hobby People sells them as does Tower by online service.  The price recently rose to $45, but that is still pretty cheap.  Depending on where you are, there may be Hobby People stores in your locale.

George, The mentioned engines are to make 18" hollow log stunt well.
Original engine like OK Cub.049 or Cox low end.049 type engines are for basic training, fun stuff, mabey 1 loop, mabey 45 degree wingover, thats it.