CAD Drawn Versions Of Comet "Stick" Models
The models in this section of the web site are CAD drawn versions of Comet built up stick models. These models are tissue covered as opposed to the Comet series of Stuct-O-Speed all sheet models. The selection of models in this section are ones that were of personal interest and the plan packages represent a number of hours to produce. Examples will be added as time and personal interest permits. There were so many models developed by Comet during the time they were in business that it would take several life times to redraw all of them using CAD tools.
As is the case with other plans available from this web site, the plan packages are offered as Adobe PDF files.
WHEN PRINTING MAKE SURE THAT PRINT SCALING HAS BEEN TURNED OFF. That will help make sure each plan prints at the intended size.
There are several ways to transfer the part outlines to balsa. The one used personally is to print the parts directly on 1/32" balsa. A description of the method used to print the parts directly on balsa is provided here. Just click on the link. We then laminate the printed balsa sheets with a second sheet of 1/32" balsa (cross grain) to form parts that are 1/16" thick. That is the normal thickness of most of the parts in a Comet model design. If thicker wood is called out simply use the appropriate thickness of balsa to laminate with the printed 1/32" sheets.
An alternative method that works quite well is to print the parts on T-Shirt image transfer paper. That is paper used to create custom T-shirts with your own graphics. We have had very good results using the T-shirt transfer paper as a medium for transferring printed images to balsa. This eliminates the need for laminating sheets and also allows any printer to be used. The process for using iron on transfer paper is described here. Files containing mirrored images of the parts set up for printing on letter size transfer paper have been provided for each model to make it easier to use the iron-on transfer paper method of part transfer to balsa.
The plans presented here are probably better called "Based on Comet Designs". They retain nearly all of the features of the original designs but do include a few changes that reflect more current methods or what we feel are enhancements to the structural design resulting in better durability or ease of building.
If you have access to a 3D printer, you will find some 3D print files for propellers here. The 6" three blade prop is well suited for the P-51A and P-40C. The 7" two blade prop works well with the Stinson SR-7, and the 7 1/2" three blade prop is well suited for the Hellcat.