Floating Kidney (oz7727)
About this Plan
Floating Kidney. All-wing glider model.
Quote: "Herewith a very old Aeromodeller plan 'Floating Kidney', might go well with a Ducted Fan if enlarged. I apologise for its poor quality, it is over 50 years old. If you can make anything of it, its rarity value would make it worth the effort."
Note this plan could use a good clean-up.
Direct submission to Outerzone.
Update 27/05/2016: article pages, text & pics added. Found online at www.rcgroups.com Thanks to Doug for sharing the link.
Update 02/06/2016: Replaced this plan with a version completely redrawn from scratch in PDFvector format, thanks to GeneRock.
Quote: "Hi Steve and Mary, This one was a struggle to recreate in CAD. You will notice that the spars do not agree with the original drawing. I added a required split line to all but F so that the model can be assembled. You will notice that there are very few straight edges. the model will require careful sanding to achieve all the required chamfers. Gene Rock"
Supplementary file notes
Previous scan version.
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User commentsCongratulations on the clean up of the Floating Kidney plan. I did not realise how doggy my original was until I saw the rework. Have downloaded it and now considering upsizing it with a ducted fan to push it along.
MikeWight - 07/06/2016
16" span and a 5x3x2 tractor prop on a FT Radial 1806 or equivalent will do wonders with this wing planform. I run mine with the aforementioned specs on a 1300 mAh 45c 3s battery and she handles great. Ultra light wing loading from the big wing area and a very forward CG means even a smaller model will like a big fat battery. I get like 30 minutes of flight per charge and plenty of power even with the modest prop. Anyone who enjoys a Nutball, it's a lot like that with some subtle nuanced differences.
Vimana89 - 08/08/2019
I've updated my prototype electric foamy with the 16" span I mentioned before. It originally had a "sawed off" nose compared to the original glider, but I built and swapped to an A fold box nose that looks very much like the original glider's nose. It was originally a bit tail heavy and needed the 1300 mAh battery, but with a full nose and the same specifications, I'd recommend an 850 instead.
If the CG is right on or a little nose heavy, this plane will have a very good glide ratio. I cut all throttle from fairly high up and was able to glide down for a safe and smooth landing.
Vimana89 - 12/08/2019
I'd like to nominate V's achievement for the OZ Silk Purse out of a Sow's Ear 2019 Award.
Miguel Morao - 12/08/2019
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