>Tim,
>
>(...) when are you going to get through that big skull of
>yours that I dislike Fox 35s? I wouldn't buy one if Abe
>Lincoln made it himself!
>
The original Veco 29/31/35 engines also weighed that same six ounces that the Fox 29/35 used to be (they are 6 1/2 with the current 50th anniversary style heavy muffler lugs). The three- bolt K&B 29 and 32 also weighed about the same. Most of the Asian Rim 25's based on FP-type cloning are also in the 6 to 6 1/2 ounce weight region.
The Fancy Pants "looks right" with older style engines sticking out of its upright mount. I think it will fly just fine on a decent 19 or 20. If I were planning to put something seriously different up front, like an FP 35/40, I think while building it I would lengthen the tail some and move the bearers up so the motor would stick out the bottom in a more modern style to match the engine.
The four-bolt GH Torps upped the weight factor to 7 for the 35's, slightly more for the 29's, and the 35X's/ 36X's started out at 7 1/2 ounces. FP 40's weigh right at 8 ounces, and the 35's are just slightly heavier than that.
The various slower-turning, low compression "stunt" engines that would perform a natural 4-2-4 (- not even when we include the Testors McCoys -) were never the big sellers, BUT they did tend to have the longest useful lives, and a serious percentage of older modellers value that tendency.
I wore out about six sets of cylinders and pistons and two cases for the Torp 35's I used up in a few short years from 1954 to 1957, running them hard, on high nitro, low oil, fuels like Missile Mist and Blast. The three- bolt Veco and Torp engines did not run that hard, and didn't encourage their users to do so to the same extent.
(Although they weren't 4-2-4 motors, and thus would be "speedy" engine choices for a Fancy Pants.)
When the Fox "X" motors came along, they stood up to the hard usage better than the Torps had done. I used them for fun flying as well as some combat. But I was in a minority among most of the other modellers I knew, who weren't anywhere nearly as competitively oriented as I was. When Slow Combat was still fairly new, many fliers tried to keep on running slow engines, and using hopefully superior turning respenses to equalize things.
Bill Estill was both a reluctant convert to hot ST 35's, and a front runner in developing foamie winged models. His planes were excellent, but his engines were turkeys.
The Fox 35 earned its place in model history. They are neat old engines. I have several. But in general I have never used them nearly as much as I have my other engines, new or old (some exceptions for short periods and special purposes). Looking down on them for any reason doesn't make any particular sense to me at all!
Kiwi