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Engine basics => Engine set up tips => Topic started by: Tim Wescott on March 15, 2013, 02:16:57 PM

Title: What bolts on in place of a Tower 40?
Post by: Tim Wescott on March 15, 2013, 02:16:57 PM

What motors bolt on in place of a Tower 40?  Which ones are good for stunt?

I find myself with two airframes that fit a Tower 40, and only one Tower 40.  I'd like to at least have as many motors as I have planes to fit them on, but I'm pretty much stuck with buying used.

A motor that is totally ready to bolt in place (i.e. same bolt pattern and bolt-to-prop drive spacing), but I'll take what I can get as long as it's known to be a good runner.

Thanks.

Title: Re: What bolts on in place of a Tower 40?
Post by: Bill Hummel on March 15, 2013, 02:25:13 PM

Exact match: 40 FP, 40 LA, 46 LA, Thunder Tiger or Magnum 40 GP.  Close: 35-S, Brodak 40, even a ST 46 is not too far off.

Title: Re: What bolts on in place of a Tower 40?
Post by: RandySmith on March 15, 2013, 02:32:23 PM

All the above plus the HP-40 will work, along with the  Magnum GP -44

Randy

Title: Re: What bolts on in place of a Tower 40?
Post by: Tim Wescott on March 15, 2013, 02:59:57 PM

Thanks guys.  I thought the FP 40 and LA 4x would be a match, but I didn't know about the others.

Now I just need to haunt CraigsList when the budget allows.

Title: Re: What bolts on in place of a Tower 40?
Post by: Mark Scarborough on March 15, 2013, 04:05:01 PM

Tim, hit up your RC buddies,, ( yeah I am outing you ,,  H^^) the LA 46 was purchased by a goodly number,, and in the RC world, its not very popular,, lacking in power compared to stuff like the FX, or SF,, they can be found fairly cheap,, I just picked one up that feels virtually new at a swap meet

Title: Re: What bolts on in place of a Tower 40?
Post by: Gene O'Keefe on March 18, 2013, 08:00:55 AM

LA 46 is my vote too

Title: Re: What bolts on in place of a Tower 40?
Post by: Don Curry AMA 267060 on March 18, 2013, 09:04:27 AM

Tim: come on over I have several FP .40's, Brodak .40, and several others that might work.
Don

Title: Re: What bolts on in place of a Tower 40?
Post by: Jim Thomerson on March 18, 2013, 01:34:31 PM

Tower 40s come up on eBay from time to time and usually go cheap.  I have bought several which looked ratty and were fine inside. 

Title: Re: What bolts on in place of a Tower 40?
Post by: Dennis Moritz on March 18, 2013, 08:20:31 PM

I bought a used Tower 40 for 20 bucks on an RC site. It has been mounted on a modified Flit Streak for three years. Piston/cylinder fit is awesome. It'll stall my starter unless I carefully cock the prop clockwise, against compression. LA 46s are easy to tune but prefer a big prop. This may be an issue for a smaller 40 sized stunt plane. Currently my best flying competition stunt plane is a modified Magician powered by a Tower 40. Excellent match for this plane. An LA 46 swinging a big prop might create issues with this light (36 ounce) 48" span bird.