Waco SRE - Rubber scale model biplane.
Quote: "One of the Most Realistic and Finest Flying Scale Models Ever Designed - A Replica of a Famous Plane. Waco SRE, by Earl Stahl.
WACO planes are known throughout the world for their fine performance, stamina and distinctive appearance. Newest member of the Waco family of planes is the model 'E', a five passenger biplane which is rapidly attaining a full measure of popularity on the skyways of the nation.
Featured in its design is a radical new engine cowling which is an integral part of the fuselage. This eliminates the usual break between the cowling and body and adds to the plane's beauty and performance. A small flap at the bottom of the cowl permits the pilot to maintain any desired engine temperature.
The Waco 'E' is available powered with several engines of varying power. The Jacobs engine of 330 horse-power affords a cruising speed of 177 mph and a rate of climb of 1,170 ft per min. Fuel stored in synthetic rubber fuel tanks is sufficient for a non-stop flight of 1,100 miles. Electrically operated flaps are employed to slow the speed of landings.
Structurally and proportionally the Waco 'E' is an excellent design for a flying scale model. The original proved to be a fine performer; it takes to the air in steep, thrilling spirals and makes flights of over 50 seconds. This model can really 'take it' too, for the biplane type of construction is very rugged. Since the size is rather small, it is important that the weight of the various parts be kept at a minimum. The manner of construction is entirely conventional, so little difficulty should be experienced as your Waco takes form.
Fuselage. A simple rectangular frame is the backbone of the fuselage structure; it is shown lightly shaded on the plan. Work directly over tracings of the plan and build two side frames, one over the other to make certain that they are identical. Medium grade wood should be used; the longerons are 3/32 square and the uprights are 1/16 x 3/32. Stick pins on both sides of the longerons and crosspieces to hold them in place until the cement is dry.
Separate the frames with a thin razor blade, should they stick together, then invert them over the top view. Cement 1/16 x 3/32 crosspieces into position at the center of the body and when dry draw the backs together and place the remaining cross-pieces. It will be necessary to crack the longerons in order that they can be pulled into position at the front. Check continually to assure a correctly aligned structure. Because of the rather simple structure of the prototype, few fuselage formers are required..."
Update 08/08/2018: Added article, thanks to GTHunter.
Did we get something wrong with this plan? That happens sometimes. Help us make a correction
Do you have a photo you'd like to submit for this page? Then email firstname.lastname@example.org
* 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.