XFS-1

 

XFS-1 - plan thumbnail image

XFS-1 - completed model photo more pics (2)

XFS-1  
by CF Hedges, RV Bentley
from Aeromodeller
May 1942 
36in span
Tags: Rubber F/F
all formers complete :)
got article :)


Submitted to Outerzone: 07/01/2018
Outerzone planID: oz9673 | Filesize: 456KB | Format: • PDFbitmap | Credit*: Alcalaino, Sundancer, rchopper56

   

About this Plan

XFS-1 - Rubber model with contra-rotating prop. This X.F.S.1 plan appeared in the article titled: "Coaxial Aircrews"

Quote: "CO-AXIAL AIRSCREWS by C.F. HEDGES & R. V. BENTLEY - One of the neatest co-axial propeller designs that we have yet seen which will no doubt be welcomed by the serious aeromodeller. The actual gearing is a little intricate but should present no especial difficulties to the model engineer. The photographs show the excellent form of construction used and the pleasing lines of the finished machine.

Before commencing the instructions I wouls advise anyone about to build this model to obtain the best quality material in order to obviate any weak spots. As will be noticed, weight has been cut down where possible in order to allow for places which need extra strength. On the original model the props and mechanism worked out lighter than was expected and this necessitated the addition of a slight weight on the nose in order to balance the model, but including this extra weight the finished model, with 1 oz. of rubber, weighs only 5-1/2oz, which you must admit is not bad for a job with two props and gears. To get to the building, we will commence with the fuselage.

If you have built a circular fuselage before, no difficulty should be found. The first thing is to cut out the formers as shown on the plan, using two laminations of 1/32in sheet, marking for stringer positions and longeron slots using the master diagram. Former No. 4 (three-ply) is for strength in order that the fuselage will not collapse when the wing fixture is cut away. Former No. 11 (three-ply) is for the rubber fixture and rudder control attachment. This fitting should be made as shown on the plan and fitted before the fuselage is assembled..."

Quote: "Hi Mary and Steve, I'm sending an incomplete [complete now] article on coaxial propellers I have, written by C. F. Hedges and R.V. Bentley, which appeared in the May 1942 issue of Aeromodeller. The article gives a blueprint to build a contra-rotating propeller and a plan for one of the the typical beautiful streamlined and complex British rubber models of the era to use it. I hope Jeff finds it useful, even if it's not complete. Best regards Alcalaino"

Note this is not a full size plan, this is a cleaned up scan of the drawings as published in the magazine in 1942. Fuselage and flying surfaces are drawn at 1/3 scale, but the formers and ribs are shown at full size.

Direct submission to Outerzone.

Update 13/01/2018: Doh. Have added full article file now, including the missing first page.

Supplementary files

Article pages, thanks to Sundancer, rchopper56.

Corrections?

Did we get something wrong with this plan? That happens sometimes. Help us make a correction

 

User comments

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

 

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, 2011-2018.

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.