Here’s a short sequence showing some of the planes of the day. In 2005 I still flew the Calypso in the Nordic schedule. In the video you can see an Impulse, Temptation, Synergy 50 and many more.
Topic: Calypso
Retro video: Jarlsberg Cup 2005
OS 61 FX nostalgia
I sold the F3A Calypso and I had to run the engine just one last time. Freshly overhauled and with new bearings, it runs like nothing else matters. Beautiful. Love O.S.!
PS – I know I’m an idiot for holding the camera crooked AND holding the camera in the propwash at full throttle…
Calypso build thread on RC Universe
Rajoo from Singapore is building one of the finest ARC kits of all time, the Modeltech Calypso. Follow the build of Hanno Prettners classic on RC universe
Calypso and Sky Star 90 pictures
More photos added to Flickr, there’s a big batch of build pictures from the MK Sky Star 90 with comments and a series of images of the Hanno Prettner designed ModelTech Calypso.
My Planes: Calypso rebuild

The undercarriage proved to be very weak so I re-opened the mounts in the wing and installed fixed piano wire gear. This has been very successful.
A pipe and header was also installed and gave the plane the performance it needed. It now has almost unlimited vertical performance and the engine never quits even in extreme G conditions.
My planes: Hanno Prettner Calypso

More pictures will be added to Flickr shortly
| Engine: | O.S 61 FX – non pumped! |
|---|---|
| Header: | Just Engines |
| Pipe | Just Engines Purple Pipe (Hatori 650 repclia) |
| Servos | Standard Hitec and Graupner Servos, HS300, HS422 and some other very old servos that really need a break… |
| Finish | Monokote |
| Wings | Foam/balsa |
| Fuselage | balsa and ply |
| U/C | Fixed, piano wire |
| Weight | 3500+ grams |
| Wingspan | 170 |
| Prop | APC 12×10 |
