Jupiter RC (oz12854)
About this Plan
Jupiter RC. Radio control sport model for electric power. Wingspan 1.4m.
The original Frog Jupiter (oz2290) dates back to 1947, and was a free flight model for rubber power at 36 in wingspan. This here is a modern plan, drawn up from scratch in CAD, showing an enlarged version of the Jupiter for RC with electric power, at 1.4 m wingspan.
See the supplement parts zipfile for the full 12 sheets of parts drawings. These are in a zipfile because each sheet has a useful filename that specifies material and size, thickness.
Direct submission to Outerzone.
Quote: "Dear Steve, the Jupiter is my brand new design, I just fetched 3 sets of laserparts from FS-Modelltechnik, who do excellent laser cutting for me, and the parts are still in the box, the powerplant is a Reisenauer 1:5 gear with Peggy Pepper HK 2221/16 turning a 18x18 on a 2s Lipo ;-) 3200 turn/min. I enclose the pdf plans - all the other sheets are named with their wood type and drawn on a 1000mm x 100mm Balsa plate or a 1000mm x 250mm ply sheet."
Update 26/03/2021: Added CAD zipfile (dxf format), thanks to Matthias.
Quote: "Dear Steve, find enclose all dxf files for the RC Jupiter and feel free to publish. Now as all parts are together, the mistakes are taken out and the
dxf corrected for rebuild. Now after 19 days of building that’s the status, picture enclosed [pic 010, 011] ;-)
I already started with the build thread and its up to date but not finished now this afternoon no building, I go flying ;-)
Update 08/04/2021: Added new Viewpoint article RC Jupiter Build Thread thanks to Matthias. This tells the full story of his beautiful CAD re-design and scratch build of an enlarged Frog Jupiter model, for RC with electric power - complete with 18 inch prop.
For more pics of the build (over 400 of them) see: https://outerzone.co.uk/_files/RC_Jupiter_pics/page.asp?group=1
Supplementary file notes
Parts files (zip).
This plan is available for download in CAD format.
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User commentsNice cad work!
Gene - 06/03/2021
What a fine rejuvenation of a 70 years old design :-) Cad work is first class and the parts PDF files perfectly organised, no guessing needed. Well done Matthias, I hope it flies as well as it looks!
Miguel - 08/03/2021
Thanks for your nice comments, if anyone likes to build I can send dxf files for privat use only. At present I find some mistakes so some slots are missing, that happens always due to the huge amount of parts and work, once solved I will publish the files here in Outerzone for free download. I thing the Modell will be build in approx 8 week I do a build thread on FPV-treff.de but you have to register, once finished I will make a short review and hope to publish it here on the page. cheers Matze
Matthias - 11/03/2021
Hi Steve, just some pictures for you after 6 days of building [008, 009], o.k. the canopyblock was started earlier, due to leadtime. Just some pictures for you - once finished and flown I will make a complete report about the build and first flights. Will keep you informed. Cheers,
Matthias M - 16/03/2021
How can that small motor with only 1.5 gear turn that huge prop? What is prop rpm and current draw?
Mark S. - 26/03/2021
I think it's 1:5 not 1:1.5 ...see store pages here: https://www.reisenauer.de/artikel...
SteveWMD - 26/03/2021
The gear is 1:5 it turns the 18x18 fiala at 2300rpm „rubberlike“ makes 1150gr of thrust over 2 pound and produces 65km/h pitchspeed at a 2s Lipo.
Matthias - 29/03/2021
More Photos [012-016]. The Jupiter was flown today after 25 days of building. I was alone, so sorry no flying pictures, they will follow soon. So the Jupiter flies very well, battery is in center of gravity so I have free choice@the moment. Today I used one thousand 2s battery, I have to make some tests which battery will be the best to carry for adequate flighttime. Trimlines need to be added also take a few days with testflying, I'm not that fast like building?? Cheers,
Matze - 31/03/2021
That's a beautiful model. Thanks for the great photos.
SteveWMD - 31/03/2021
Dear Steve, here is some video of the Jupiter in flight, see https://www.youtube.com/watch?v=Pm3qR0osYWg nothing beautiful, just quick and dirty to have something to look at. My biggest problem is always to find a good Cameraman and combined with good weather, it’s easier to build another 5 planes than that ;-) So I took the foxeer legend in my mouth and cut a few elements together. Once there is a better film I will let you know, but so long you can get a first flying impression. I fly with a 1000mAh 2s for 5min. today I tried a 2200mA 2s for over 10min, the weight increase was not sensible, so I think a good choice between 1000 and 2200, depends on the pilots choice. As the batteries lie direct in the Center of Gravity anything is possible to fly. Calculate 5min per 1000mAmps. I´m happy with the plane so far and luck that I built it.
Mattias - 08/04/2021
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