Chigger (oz10524)
About this Plan
Chigger. Radio control sport biplane.
Quote: "A chigger is a small red bug, common to the sunny South, which gets under your skin! I'm naming this airplane 'Chigger' because I'm so very happy to be back in the sunny South and because I hope this design appeals to you - that is, gets under your skin.
The original idea for a bipe this size came to me one afternoon as I drove from Rapid City, South Dakota, to Lead, South Dakota, to see a good friend of mine, one Doctor JJ Smith. The outside temperature was sub-zero (not unusual, despite local Chamber of Commerce propaganda to the contrary) so we had a lot of time to daydream! I mentioned to Dr Smith how I thought the Jr Falcon (oz8144) would make a good biplane. I'm not sure he agreed but he gave me a Jr Falcon Kit, sans fuselage and plans. I took this box of parts home where it collected dust until I gained favor withthe powers to be and was transferred to Carswell Air Force Base, in Fort Worth, Texas.
Well sir, shortly after I arrived in Texas I began to thaw sufficiently to regain my interest in R/C. While I built a Little Toot (oz4337) Biplane by Son Syl products from Houston, Texas, I began to dream up this biplane shape. Next I got out an old issue of 'Sport Aviation' and looked at biplane pictures and, Bingo, here comes the Chigger!
I traced a Jr Falcon rib on a piece of 1/16 plywood and cut it out on my Dremel jigsaw. Then I built the wing panels from the kit parts, went to Ed Alexander's Hobby House (one of the all time best hobby shops in the US), bought shaped leading and trailing edge stock and went back home to do the top wing.
Right here I would like to compliment Mr. Carl Goldberg for the really great basic design involved. I'm sure he could really tell quite a story of how he came to find that what's here provides sufficient strength with light weight. I can tell you that, so far, the kit wings have held up just fine on my model so you might consider getting a Jr. Falcon Kit.
I used the store bought leading and trailing edge stock to build the top wing. Just lay out the trailing edge stock with 7-1/2 degrees sweep in each panel and notch it for the ribs with the same spacing as the bottom wing. Then pin it down flat (glue center section, too), glue in the ribs, add the leading edge (glue the center section too), slide the spars in from the tips (glue the center section too), add tips, and you're done with the top wing! When it's dry you can add the doublers for the struts and sand it for MonoKote, which is made by Top Flite Models in Chicago, Illinois.
Right here I want you to notice how I drop names and addresses. I do it because I assume folks read this trivia and maybe the named manufacturers will see fit to donate some their products for me to experiment with and comment favorably on..."
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-
(oz10524)
Chigger
by Jim Simpson
from RCMplans (ref:9001)
April 1970
36in span
IC R/C
clean :)
all formers complete :)
got article :) -
Submitted: 11/10/2018
Filesize: 230KB
Format: • PDFbitmap
Credit*: bullseye000, guitarbanjo, davidterrell80
Downloads: 580
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User comments
I built the Chigger back in 1971 after returning to the States from a tour in Greenland. Powered with a Webra .20, crashed and rebuilt (just the nose), before moving to Germany. The plane made the transfer almost intact but the case that I made for it was pretty much destroyed, needing only a new upper wing. A very nice flying model, tho heavy and aileron response was a bit weak. I still have the model, having gone thru another Webra Speed 3.5 and an OS.25FSR, two re-finishes and a few other dumb-thumb issues and it is now in the process of being electrified and a major diet (it was quite heavy originally). I'll try to find some photos of it and will make sure to get some new ones when it is again airworthy.PeteBrecker - 18/10/2018
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- Chigger (oz10524)
- Plan File Filesize: 230KB Filename: Chigger_RCM-9001_oz10524.pdf
- Supplement Filesize: 1954KB Filename: Chigger_RCM-9001_oz10524_article.pdf
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