Low-Wing Petrol Monoplane (oz10039)
About this Plan
Low-Wing Petrol Monoplane. Free flight power model.
Quote (from plan drawing): "A low wing petrol monoplane for 9 cc engines 'The Gull' by Major CE Bowden. Source: 'Newnes Practical Mechanics' Feb/March 1940. Issue kindly copied for me by Geoff Clarke. Note: These drawings are half size except ribs and fuselage formers."
Note: It seems the use of the title "Gull" on this plan drawing is mistaken. Certainly there was a different low wing power model design by CE Bowden that was called Gull ...and this is not it.
Quote (from article): "A pioneer of model petrol-engined planes in this country is Colonel Bowden, and in view of the fact that so many petrol engines are now available at a reasonable price, I propose to describe the construction of one of his machines. I have obtained the details from Colonel Bowden of one of his low-wing petrol models which is really stable and simple to construct.
Not only is the model stable, but it has been found to be more stable than the average good high-wing model. This is no exaggeration, but is an actual fact. On pages 228 and 231 are shown photographs that give a general idea of the model with its rounded top to the fuselage. They show its keen but simple lines combined with general dihedral angle of the wings.
The model has a wing span of 8 ft and maximum chord of 16 in, length 5 ft 3 in, and a weight of 6-3/4 lb. It has been flown frequently with a 9 cc Brown, and also with a 9 cc Ohlsson engine, on from 1/2 to 3/4 maximum revs. The photograph on page 231 shows the model in flight, and also gives a good idea of its flat gliding angle.
The Fuselage. Figs 251 and 252 on pages 229 and 230 represent a plan and side elevation of the model. A scaled-up full-size drawing should be made upon cheap drawing-paper, unless the builder wishes to keep his plans, when a better but thin paper should be used. It is necessary to draw up the fuselage full-size, side elevation and plan, on one piece of paper.
From this and Fig. 255, dimensions of the five 3-ply formers can be obtained, and the formers cut from 1/8 in 3-ply, except No. 1 nose-piece former, which is cut from 1/4 in 3-ply. All formers are fretted out for lightness, and these formers make jigs to keep the fuselage true whilst building.
As the tops of the formers are measured from a straight top line from the fuselage, if the formers are accurately cut and the fuselage sides correctly shaped the correct angle of incidence of the low-wing will be automatically obtained. The formers also take the shocks, and stubs of detachable wings and tail-retaining hooks, engine, and undercarriage.
Wire hooks, as shown, are bound with thread and glued to the formers. Hooks should be of 16 swg wire (see Fig. 255). The two sides of the fuselage are cut from 1/16 in sheet balsa of light weight to the side elevation shape of the fuselage..."
Scan from DBHL, cleanup by theshadow.
Direct submission to Outerzone.
Update 06/05/2018: Added article pages (chapter XXV from the Newnes 1949 "Model Airplane Handbook") thanks to Pit.
Update 13/09/2019: Added 4 photos of model by Roy Barrow [006-009] scanned from Model Flyer February 2000, thanks to RFJ.
Update 17/09/2019: Added article 2: "Bowden Low Wing Petrol Monoplane, Resurrected by Peter Scott" from RCME April 1998, thanks to RFJ.
Supplementary file notes
Article, includes pics and drawings.
Article 2, from RME.
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
Do you have a photo you'd like to submit for this page? Then email firstname.lastname@example.org
User commentsPossibly also known as the "Petrol Low Wing" or "Bowden Low Wing Monoplane" ...the title of this plan/design is not certain. Any help with this much appreciated.
SteveWMD - 06/05/2018
I Steve/Mary, attached a chapter on low wing monoplane of CE Bowden. The book (1949) from F.J. Camm (the Brother of the most famous Sir Camm who designed the British fighter Hawker Hurricane) edited by the same George Newnes that published Practical Mechanics magazine. F.J. Camm seems to had a close friendship with Col. CE Bowden and there is more material survived about the colonel on Camm's books rather than by colonel himself. To me this is the final words on the model name, it has no name. Probably this is the same article published on PM mentioned in your plan. It was common to realize a book with the past article from the magazines. In any case the plane looks obsolete for 1949 style, in fact it was originally published or draft in 1937. regards,
Pit - 06/05/2018
Thanks Pit. Have changed the listing now from "Gull" to "Low-Wing Petrol Monoplane".
SteveWMD - 06/05/2018
Hi Steve and Mary, Just re-discovered the drawings for the Bowden Low-Wing Monoplane. There's a video of me flying my replica in 1995 at https://youtu.be/DTUn0pX0i-8 All the best and keep-up the excellent work in 2023,
Peter Scott - 04/01/2023
Add a comment
- Low-Wing Petrol Monoplane (oz10039)
- Plan File Filesize: 437KB Filename: Low-Wing_Petrol_Monoplane_DBHL_oz10039.pdf
- Supplement Filesize: 1986KB Filename: Low-Wing_Petrol_Monoplane_DBHL_oz10039_article.pdf
- Supplement Filesize: 2191KB Filename: Low-Wing_Petrol_Monoplane_DBHL_oz10039_article_2.pdf
- help with downloads
* 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, 2011-2024.
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.