1920s Navy Flying Boat (oz4642)

 

1920s Navy Flying Boat (oz4642) by George Clapp from Model Builder 1975 - plan thumbnail

About this Plan

1920s Navy Flying Boat. Semi-scale RC model. Span 72 in, wing area 1500 sq in.

Quote: "1920s Navy Flying Boat, by George Clapp. This model looks just about like any Navy flying boat you might have seen back in the early 1920's (if you happened to be around at the time) and flies in the same lazy manner.

US Navy flying boats of the World War I and twenties era were many, and varied greatly in plan form. There were two general types, one similar to our model, and the other with hull and out-riggers to the empennage, such as the Curtiss NC4 of transatlantic fame. But I think it's safe to say that all were biplanes with rigging far more complicated than this non-scale subject.

About 1964, MAN published Ken Willard's Little Swell (oz821), a monoplane flying boat. Right away, I saw the possibilities of making it into a boat such as I had been thinking of building.

The hull of a flying boat can take considerable experimentation and building trial and error before you hit upon the right design. After reading that this was Ken's third try, I decided to stick with his hull design and blow it up two times in size. The rest of the ship is my idea of a composite of all of these great old Navy Flying boats. Also, it is of great satisfaction to see it lumber along until it hits that last ripple and becomes air-borne. It then cruises around with no great performance, much as those ships did. There is little doubt that it could stand a 60 for power, but I preferred the challenge of a strong 40, such as the Super Tigre hall bearing rear valve it now has, for realism.

HULL CONSTRUCTION: The hull is quite simple to build, with 6 steps clearly shown on the plans. It should be noted that the top view lines represent the exact shape of the top piece of the hull.

1. Use the top pattern right off the plans. As the top of the hull is flat, it makes an easy foundation for building the hull upside down.

2. Draw center line on top skin and install bulkheads.

3. Lay keel and bottom longerons.

4. Lay top longerons and sand angle on these, using bottom longerons as guide. This should sand angle back to top skin. Now cut out radio access below wing and border with 1/4 inch balsa be-tween top longerons and bulkheads.

5. Make outside skins from 1/8 inch medium balsa, using side view as pattern. Note 1/4 inch excess added to top. Top will then have to be fit to allow for angle of sides of hull. This will make a gentle curve on the top of side pieces. Sides are then glued in place. Now add 3/16 sq hard balsa cross pieces. These should be two to each bay between bulkheads, except between F-2 and F-3, where one is enough.

6. Bottom is then layed on, cross grain, for strength. Add block to nose and sand entire hull to shape. Then add block for wing to butt against at front, and pilots' head rest (two pilots)..."

Direct submission to Outerzone.

Supplementary file notes

Article pages, text and pics, thanks to theshadow.

Corrections?

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

1920s Navy Flying Boat (oz4642) by George Clapp from Model Builder 1975 - model pic

Datafile:
  • (oz4642)
    1920s Navy Flying Boat
    by George Clapp
    from Model Builder
    November 1975 
    72in span
    IC R/C Biplane Floatplane
    all formers complete :)
    got article :)
  • Submitted: 24/07/2013
    Filesize: 883KB
    Format: • PDFbitmap
    Credit*: JJ

1920s Navy Flying Boat (oz4642) by George Clapp from Model Builder 1975 - pic 003.jpg
003.jpg
1920s Navy Flying Boat (oz4642) by George Clapp from Model Builder 1975 - pic 004.jpg
004.jpg

Do you have a photo you'd like to submit for this page? Then email admin@outerzone.co.uk

User comments

No comments yet for this plan. Got something to say about this one?
Add a comment

 

 
 

Download File(s):
  • 1920s Navy Flying Boat (oz4642)
  • Plan File Filesize: 883KB Filename: 1920s_Navy_Flying_Boat_oz4642.pdf
  • Supplement Filesize: 814KB Filename: 1920s_Navy_Flying_Boat_oz4642_article.pdf
  • help with downloads
 

Notes

* 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.

Scaling

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.

 

Terms of Use

© Outerzone, 2011-2020.

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.