Lightweight Duration Model (oz4887)
About this Plan
Lightweight Duration Model. Rubber competition model. J. P. Buckeridge, 34 in wingspan FF rubber from Model Aircraft November 1946.
Quote: "THIS model was originally designed for an attempt on the 'Forces Trophy,' but army duties prevented the designer from completing it. It was, however, built by another club member, who has obtained average flights of 3 min 50 sec from it, and it can be recommended, to those who favour the lightweight type of model, as a reliable machine which is simple to construct and economical in material.
Fuselage. The 'Warren' girder construction provides considerable strength and, above all, absence of distortion in the vertical plane if it is properly constructed, thus ensuring reliability of performance. It is essential to make sure that the Warren girder spacers are a good fit between the longerons, and accurately mitred to each other at their apexes. The 'double gluing' method must be used on all joints, the single gluing method being unsatisfactory.
When building up the two sides special care must be taken to see that they are both exactly alike, as they cannot be sprung on final assembly to correct errors, in the way the usual open-girder construction can. Care in making the two sides accurately and alike will be amply repaid on the flying field.
When the two sides have been made, and the cement is thoroughly set, the fuselage can be completed by inserting the horizontal spacers, starting with the centre ones and working outwards.
When the fuselage box structure is complete a 1/16 in sheet balsa platform 1 in wide is cemented at the tail end of top longerons, to provide a suitable attachment for the tail and fin assembly.
The wing mount consists of two 1/16 in round bamboo struts, 6-1/4 in long, attached to the top of piano-wire struts, the front being 18 swg, and the rear 20 swg. The piano-wire struts should be both glued and bound to the longerons where shown..."
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(oz4887)
Lightweight Duration Model
by JP Buckeridge
from Model Aircraft
November 1946
34in span
Rubber F/F
clean :)
all formers complete :)
got article :) -
Submitted: 01/10/2013
Filesize: 437KB
Format: • PDFbitmap
Credit*: stormin
Downloads: 1827
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- Lightweight Duration Model (oz4887)
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Notes
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