ORIGINAL: bem
Hi,</p>
This will convince it is SPA legal. From American Modeler March/April 1963, article from ''FAI radioplane championship'' 1962 (I made PDF files below). There is a picture on Caravelle with Gustav Sämann who designed and flew this plane. Gustav Sämann placed 2nd in 1960 WC after Ed Kazmisrki by the way but I do not know what model Gustav used then.
/Bo</p>
Should be a validation for SPA, but won't make a competitive model out of Caravelle. I mentioned above that Sämann was second at the 1960 WC and can add that he likely used the Caravelle prototype. Just as likely, his second place prompted Graupner to kit the model (like later the Kwik-Fli Mk III). Seems they brought it out only 1963 when the new Variophon/Varioton R/C (with Bellamatic II and ServoAutomatic servos) was successful in the market and Caravelle was redesigned for it (as shown in the drawing FreeBird posted). It was a model for bang-bang R/C (the Graupner R/C had no reeds).
An interesting side note: Graupner has a nice picture at his 75th anniversary website showing Dr. Walt Good, Bob Dunham, and Ed Kazmirski visiting Graupner on their way back home from Bern. Ed has one of the new Variophon transmitters hanging around his neck and seems to check it thoroughly, but obviously he kept using Dunham's Orbit. I guess Graupner didn't kit the Orion because that was Top Flite claim, so they kitted Caravelle instead to have a top model to boost the new R/C. Only with Phil Kraft they got in agreement for a Kwik-Fly (and Ugly Stik) license.