Scrappy Gas Job (oz470)
About this Plan
Scrappy Gas Job. Old time gas free flight by Ray Heit, from May 1939 Flying Aces magazine. This is a later redrawn version from MB in the 80s.
Quote: "A NIFTY FIVE-FOOT SHIP Once again, Ace Modeler Ray Heit, has designed a gas buggy that's really a honey. This five-footer is not only simple to build, but it also boasts a unique cowling that makes for easy engine accessibility! So get your tools together, look over the bill of materials, and get set to: Make a Scrappy Gas Job, by Ray Heit
HERE SHE IS, fellows! Just the happy-go-lucky type of model you have always wished for. Yep, Scrappy was designed primarily for service, durability, and stability. She has many noteworthy features combined to produce a model capable of great results. And to give you an idea of how efficient a flyer Scrappy is, she led us a swell chase and turned in a four minute flight with only a thirty-second motor run at a recent contest.
Scrappy is well stressed and will give you supreme service, even after hard handling. Although designed for any motor of the one-fifth horsepower variety, the model has been flown with less than one-tenth horse-power! However, for best results it is advisable to use the former motor - one fifth horsepower.
One of the ship's best features is a sleek, unique motor cowling. It permits the power plant to be entirely enclosed. And yet, with a flip of your wrist, the motor is laid bare for examination or operation! One might say it is a 'dream cowling' for it aids immensely in streamlining, combines everything that could be wished for in a model builder's dream!
To construct this Scrappy gas job, lay out all parts of the plane, full size, by enlarging from the assembly drawing, making use of all the dimensions as given (see plans for scale.)
Begin the model by first constructing the fuselage. Build two side frames from one-quarter inch square medium balsa. Use hard balsa for all longerons and braces. Lay out the longerons in a jig composed of wire-head nails alternately spaced at the maximum bends of the longerons. Glue all upright members and braces in. But do not be stingy with your cement - remember, you want a strong model.
After assembling one side of the fuselage, let it dry for a few hours before repeating your operations to produce the other half. After the two halves are finished, assemble them by cementing the two tail-posts together, then work toward the nose by filling in the cross members at their proper positions.
Using Plate 3, which shows the different formers and ribs, trace the formers required for the fuselage onto balsa sheet - including the firewall which is cut from one-quarter inch plywood. Glue the formers in place. But before attaching the stringers, it is advisable to fasten the landing gear wire in place by wrapping the wires to the fuselage with thread. Then coat the thread generously with cement. After the landing gear has been completed, the stringers will fit into the slots pro-vided for them in the formers.
Make the motor mount from one-half inch dural angle material. Rivet the pieces together with three-six-teenth-head rivets. And bolt the motor mount to the firewall. Then make two straps long enough to accommodate the placing of the coil against tho firewall..."
Update 08/05/12: Thanks to MikeNelson have added full text and drawings from original 1939 article.
Update 06/01/2019: Added article, thanks to Skippy.
Update 01/02/2019: Added PDFvector plan tracing, thanks to hogal.
Supplementary file notes
PDFvector plan tracing.
Did we get something wrong with these details about this plan (especially the datafile)?
That happens sometimes. You can help us fix it.
Add a correction
Scrappy Gas Job
by Ray Heit
from Flying Aces
IC F/F Cabin
all formers complete :)
got article :)
Found online 19/04/2011 at:
Format: • PDFbitmap • PDFvector
Credit*: Planeman, MikeNelson
Do you have a photo you'd like to submit for this page? Then email firstname.lastname@example.org
User commentsThanks to Joost for the pics of his completed Scrappy Gas Job model.
SteveWMD - 18/11/2014
Add a comment
* Credit field
The Credit field in the Outerzone database is designed to recognise and credit the hard work done in scanning and digitally cleaning these vintage and old timer model aircraft plans to get them into a usable format. Currently, it is also used to credit people simply for uploading the plan to a forum on the internet. Which is not quite the same thing. This will change soon. Probably.
This model plan (like all plans on Outerzone) is supposedly scaled correctly and supposedly will print out nicely at the right size. But that doesn't always happen. If you are about to start building a model plane using this free plan, you are strongly advised to check the scaling very, very carefully before cutting any balsa wood.
© Outerzone, 2011-2019.
All content is free to download for personal use.
For non-personal use and/or publication: plans, photos, excerpts, links etc may be used, provided that full and clear credit is given to Outerzone with appropriate and specific direction to the original content i.e. a direct hyperlink back to the Outerzone source page.
Unauthorized use and/or duplication of this material without express and written permission from this site's owner is strictly prohibited. If we discover that content is being stolen, we will consider filing a formal DMCA notice.