Miss Grandin (oz6622)

 

Miss Grandin (oz6622) by Ed Happich from RCMplans 1978 - plan thumbnail

About this Plan

Miss Grandin. Radio control flying boat, for .60 power.

Quote: "Miss Grandin by Ed Happich.

Miss Grandin is a large 81-3/4 inch wingspan flying boat, designed for a .60 engine and which is a refined version of the original sport design first built in 1967. Five have been built to date and two are in excellent condition and are still being flown.

Lake Grandin, for which the design has been named, is a fresh water lake, comprised of 900 acres in the town of Interlachen, Florida. Living in a cottage on the East shore of the lake, where I am pleased to call home, I do all of my building and flying there. Although this design is not recommended for the beginner, any experienced kit builder should have no difficulty with the construction methods used, especially if he has strip planked any round or oval fuselage or nacelle surfaces in other modeling endeavors. It was not conceived with acrobatics in mind, although it has performed such maneuvers as loops, wing overs, Cuban Eights, spins and consecutive horizontal rolls. The gas tank installation does not permit inverted flight. Touch and Go's, as well as full stall, full stop landings, are a joy to perform.

Because of the deep 'V' hull and concave forward bottom, it will land easily on the water, even in a moderate surface chop. The water rudder is completely effective in crosswinds and is retractable for beaching. The completed model, ready to fly without fuel, should weigh in at approximately 91/2 pounds or less, depending on the covering and paint job used.

The cabin area at the wing rest is completely sealed watertight. The wing floats are designed to rip off on a poor landing, however, no wing structural damage will result. Simply replace (two) 1/16 plywood splints, secured with rubber bands. If you have been curious enough to read this far, why not continue? Check the plans; the parts will fit. Build it, and you will be rewarded with many hours of relaxing fun. Furthermore, you won't be flying by yourself for long.

Construction. Hull Jig. In my opinion, the time spent building a jig which will insure a perfectly aligned hull, and facilitate ease of building, is not merely desirable, but a necessity. It can be built in two nights time once the materials have been purchased. Study the full size plan of the jig. With a ruler and drafting triangle, precise positioning of frame notches and base securing blocks can be accomplished.

Hull Construction. Using The Crutch Method: For those who do not want to build the hull jig, the crutch method could be used although it has not been used on any of the prototypes..."

Plan cleanup by theshadow.

Supplementary file notes

Article pages, text and pics, thanks to theshadow.

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Miss Grandin (oz6622) by Ed Happich from RCMplans 1978 - model pic

Datafile:

Miss Grandin (oz6622) by Ed Happich from RCMplans 1978 - pic 002.jpg
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Miss Grandin (oz6622) by Ed Happich from RCMplans 1978 - pic 003.jpg
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Miss Grandin (oz6622) by Ed Happich from RCMplans 1978 - pic 004.jpg
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Miss Grandin (oz6622) by Ed Happich from RCMplans 1978 - pic 005.jpg
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Miss Grandin (oz6622) by Ed Happich from RCMplans 1978 - pic 006.jpg
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Miss Grandin (oz6622) by Ed Happich from RCMplans 1978 - pic 007.jpg
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Miss Grandin (oz6622) by Ed Happich from RCMplans 1978 - pic 008.jpg
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Miss Grandin (oz6622) by Ed Happich from RCMplans 1978 - pic 009.jpg
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Miss Grandin (oz6622) by Ed Happich from RCMplans 1978 - pic 010.jpg
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Miss Grandin (oz6622) by Ed Happich from RCMplans 1978 - pic 011.jpg
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Miss Grandin (oz6622) by Ed Happich from RCMplans 1978 - pic 012.jpg
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User comments

Miss Grandin photos [more pics 004-012]. This model, it's a lot of work (more than 300 hrs: aircraft and jig) but this is my passion. I added a special landing gear with my own design. Thanks again for all of your help!
LucDaigneault - 16/02/2019
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