Gloster Gamecock (oz2151)
About this Plan
Gloster Gamecock. Scale FF biplane published in January 1951 Aeromodeller. Has a pendulum controlled elevator and the designer claims it to be extremely aerobatic. This is a modern redrawn plan in PDFvector format.
Quote: "IN 1925, came a development of the 'Grebe' known as the 'Gamecock', fitted with the Bristol Jupiter 420 hp, later developing 490 hp.
It was a single bay biplane, short and somewhat fat, having a smaller lower wing. A high lift upper wing was used with a thinner section lower wing, the chord of upper and lower being equal. Both wings had a pronounced dihedral angle and stagger, and the upper wing was carried on inverted W type centre section struts. The fuselage was faired to almost a circular section, tapering to a knife edge. The undercarriage was fitted with the then new Oleo shock absorbers.
The fuselage carried two machine guns concealed in troughs on each side of the pilot's cockpit, another smart innovation.
The aircraft was finished silver all over, with re& white and blue roundels, and the squadron markings were carried along the top plime and the sides of the fuselage. It had a top speed of 145 mph.
The Gamecock II was similar to the I except the centre section was carried on the conventional splayed struts and the wings were attached to the centre section giving increased strength and a flat portion between the dihedraled wings. The power of the engine was also increased to give the machine a top speed of 155 mph.
The Gamecock was highly manoeuvrable and would fly 'hands off' with no tendency to any vices. It marked the end of the all-wood fighter, as experiments were being made with the 'Siskin' and 'Bulldog' type of metal construction.
The single seater fighter had always appealed to me, and this model of the Gamecock is one of my series of the most famous fighters from 1916 to 1942, which I am building.
The Aerobatic Model: Owing to its comparatively short fuselage, the machine is aerobatic, but its generous wing area, dihedral angle, large tail and rudder, make it a fairly safe model to fly. It has a pendulum controlled elevator, which I now fit as standard, on all my models, and a wing loading of 11.8 oz/sq ft (light for me!).
The model turns to the left, and can execute beautiful stall turns, also loops, bunts and inverted flying. The machine does a diving roll out of the inverted position in a most realistic way.
The inverted position is, I believe, brought about in the following way: The model is first of all given a little more right rudder and slightly more elevation on the adjustable tail, and it will go into loops. Quite often, when climbing up to the second or third loop, the machine loses a little forward speed, and being in a steep climbing angle, the pendulum weight falls back as far as possible; then, exerts itself and the machine reels over. The weight is then falling back, giving full down elevator, which, when the machine is upside down, becomes full 'up'. The model flies thus for perhaps 70 to 100 yards gradually carrying into a shallow dive, when at a certain point the weight suddenly falls foward, the machine dives at speed and then recovers to fly on its natural course.
I have detailed all of this performance, as it is most interesting to watch, and I would be pleased to know if this manoeuvre has been performed by any other free flight scale enthusiast. (I have had this manoeuvre performed by my large 4-1/4 lb Sopwith Camel model, too). I would not advise anyone to attempt this until they have become perfectly familiar with the model, and are prepared to take some pretty fast and heavy crashes!
Complete building instructions for this model are issued with each copy of full size drawing (see 1/5 scale reproduction opposite), which is available from the Aeromodeller Plans Service."
Update 25/01/12: new version of this file added, hogal fixed some errors around the nose.
Update 19/10/2020: Replaced the PDF plan file with a clearer 2-colour version, thanks to Miguel.
Supplementary file notes
Previous scan version.
This plan is available for download in CAD format.
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
by PE Norman
Scale IC F/F Biplane Military Fighter
all formers complete :)
got article :)
Found online 03/01/2012 at:
Format: • PDFvector • CADfile
Gloster_Gamecock | help
see Wikipedia | search Outerzone
ScaleType: This (oz2151) is a scale plan. Where possible we link scale plans to Wikipedia, using a text string called ScaleType.
If we got this right, you now have a couple of direct links (above) to 1. see the Wikipedia page, and 2. search Oz for more plans of this type. If we didn't, then see below.
ScaleType is formed from the last part of the Wikipedia page address, which here is https://en.wikipedia.org/wiki/Gloster_Gamecock
Wikipedia page addresses may well change over time.
For more obscure types, there currently will be no Wiki page found. We tag these cases as ScaleType = NotFound. These will change over time.
Corrections? Use the correction form to tell us the new/better ScaleType link we should be using. Thanks.
Do you have a photo you'd like to submit for this page? Then email firstname.lastname@example.org
User commentsNo comments yet for this plan. Got something to say about this one?
Add a comment
- Gloster Gamecock (oz2151)
- Plan File Filesize: 267KB Filename: Gloster_Gamecock_oz2151.pdf
- Supplement Filesize: 1765KB Filename: Gloster_Gamecock_oz2151_article.pdf
- Supplement Filesize: 303KB Filename: Gloster_Gamecock_oz2151_previous.pdf
- CAD Zip Filesize: 682KB Filename: Gloster_Gamecock_oz2151_cad.zip
- 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, 2011-2021.
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.