Ace Seamaster 40. Radio control sport seaplane model. Wingspan 59-1/2 in, wing area 725 sq in, for .40 - .45 power and 4 channel radio.
Quote: "Seamaster 40. Designed by Ken Willard.
The Ace Seamaster 40 is designed and engineered to provide you with a nice looking, easy flying amphibian that goes together in a minimum amount of time with a minimum amount of frustration. Please read and follow these instructions to insure that these two goals are accomplished.
We recommend the use of modern cyanoacrylate (CyA) glues for the most part. There are many brands available (Jet, Pic, Pacer, Alteco, Hot Stuff, etc) and they all have three basic viscosities available: thin (for close fitting balsa joints), thick (for plywood, hardwood, and not-so-perfect balsa joints), and very thick (for joints where a filet or 'bead' is required.) For the most part, we recommend the thick variety used in conjunction with an accelerator or 'setter' which cures the glue upon com-mand. Epoxy is recommended for the engine nacelle compo-nents. Of course, any modeler has his favorite techniques of gluing but keep in mind that this is a water-going craft and water has a way of getting into everything, so don't use water soluble glues.
There are a few things to keep in mind when building this kit with its lite ply construction. It's a wonderful material that has a tremendous strength to weight ratio and is easy to work. It should punch out of the die cut sheets easily; if not, sand the back of the sheet a bit. Some cutting with an X-acto knife may be needed. Some warping of the material is normal and the key lock construction technique eliminates this being a problem. Also, one side of the lite ply is generally beuer than the other which may have some dark streaks, knots, and fill. Simply keep the good side to the outside of the structure.
We have used various finishing techniques on the prototypes, all of which were successful. Plastic film is the quickest, easiest, and usually prettiest. BUT, keep in mind again that water permeates everywhere so overlap the joints at least 1/4 in and reseal all edges a couple of times to make sure the joints are secure, especially in the hull area. It would be a good idea to go over all the exposed edges with very carefully applied thin CyA.
If you choose to use paint, we recommend that the hull be fiberglassed with 3/4 oz cloth and resin, or cover it with Silkspun or Supershrink Coverite before painting. Avoid too much paint buildup so weight doesn't accumulate.
Although the plane looks bigger, a good .40-.45 two cycle or a .60 four cycle flies the Seamaster nicely; don't be tempted to put a screaming .60 schneurle two cycle on it - the plane is not structurally stressed for it. Realize the Seamaster 40 is not a pattern ship; it is a mildly acrobatic sport ship for pleasing, predictable performance off land and water.."
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Note: Original plan scan by MileHighHerbaFly to RC groups at https://www.rcgroups.com/forums/showthread.php?3088011-Looking-for-Ace-Seamaster-40-Plans
Supplement file of Ace R/C kit manual, (complete, 12 pages) thanks to aspeed, found online at https://www.rccanada.ca/rccforum/showthread.php?p=2337826
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