Again a few small pieces, dug up from the stuff we already have here. (I just don't like crossword puzzles, so this is my relaxing puzzle.)
Collected data of the engines in question here:
Code:
Engine Mounting Holes Weight Power
1960 K&B 45 R/C 14.5mm X 40mm 9.1 ozs / 255 g 0.61 hp at 12300 rpm
1961 Super Tigre 56 R/C 21mm X 45mm 14.1 ozs / 400 g
1962 Veco 45 R/C 25mm X 46mm 11.8 ozs / 330 g 0.63 hp at 11700 rpm
1963 Fox 59 RC 19mm X 46mm 11.5 ozs / 325 g
1963 Super Tigre 56 R/C-BB 21mm X 45mm 15.0 ozs / 425 g 0.87 hp at 11700 rpm
As to the SuperTigre mystery: SAM says ST 56 Stunt appeared 1960.
Ray posted two different sets of facts. In post #585 p24
"The Super Tigre 56 R/C and the Enya 60 R/C were available as early as 1961.
(Ref. America's Hobby Center ad page 6 April 1961 MAN)"
and in post #694 p28 about the
"1963 Super Tigre 56 R/C-BB".
Fritz Bosch used a "Super Tigre .56BB" 1963 in Genk.
In the end, that means the unfinished fuselage (called T3 for now)
might be an early build if it was meant for a plain bearing ST 56 and if such an engine really existed since 1961. Would match the "old-fashioned" sewn hinges, but still not the "modern" construction.
The ST 56 shown in the old drawings and pictures we have has an exhaust baffle linked to a throttle arm on the left side of the engine. The old T2 pictures are too small and blurry to discern the position of the throttle linkage or even an exhaust baffle. The new engine now installed has no exhaust baffle and the linkage on the right side (pun?).
On CAsniffer's Classic Pattern Plane Pages is a [link=http://www.trentonrcflyers.com/pattern/articles/smoghog.pdf]Smog Hog article[/link] with a really nice illustration of the clunk tank. Just for interest. And some pages below is an Astro Hog article, though no hint regarding the name. But an engine mounting plate is described as new invention, see also the plan. And the K&B Torpedo is described as the only available pattern engine back then. Again, just for interest.