Skylark II oz2356

 

Skylark II - plan thumbnail image

Skylark II - completed model photo

This plan was found online 01/02/2012 at: http://www.rcgroups.com/forums/showpost.php?p=20602501&postcount=206
Outerzone planID: oz2356 | Filesize: 360KB | Format: • PDFbitmap | Credit*: algy2

   

About this Plan

Skylark II - Free flight sports rubber model. Low wing design. Originally from November 1947, reprinted in June 1986 Aeromodeller.

Quote: "FOR those readers who are comparatively new to the game the Skylark is ideal especially for winter flying. Built to the tradition of MR Knight it will stand a fair amount of rough usage, is simple to trim, and turns its consistent flights of between 30 to 60 secs. (longer if you can find the thermals).

Fuselage. First build up two flat sides on the drawing using 3/32 square balsa. Hard balsa should be used for the longerons. Join the sides by the 3/32 sq cross-pieces preferably using a jig. The wing tongue box should now be built and installed in the fuselage. After runners are cemented in place, test to see if it slides properly. Cut out fuselage formers and cement in position taking care to see that they are upright. Fit and cement the stringers, and cover from F1 to F7 with 1/32 sheet, Bind undercart tube in place and also the wire stop. Finally cement nose former in position, fill nose in with sheet balsa, and fit windscreen and tailwheel.

Undercarriage. Cut and bend the wire parts re-quired for the undercarriage and solder where shown. Bind the parts to the bamboo legs, and give thread a coat of cement. Add balsa fairing and sand to stream-line section. Fit wheels and plug undercarriage into fuselage.

Wings. Build wing in the usual way using hard balsa for main spars and leading edges. Take great care to cut the slots in the root ribs accurately for the tongues so that the correct incidence and dihedral are assured on both wings. The tongues must be fitted into the ribs before they are cemented to the mainspars, otherwise it will be impossible to get them in position. Do not forget to face the root ribs with ply as they take a great deal of strain..."

Update 12/11/2018: Added article, thanks to RFJ.

Added later Aeromodeller nostalgia article from 1986, (by unknown author?) thanks to Algy.

Supplementary files

Article.
Article from 1986.

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oz2356 datafile

Skylark II  
by HJ Pridmore
from Aeromodeller
November 1947 
30in span
Tags: Rubber F/F LowWing
all formers complete :)
got article :)

 

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Notes

* Credit field

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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.

 

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