Arrowhead oz5029

 

Arrowhead - plan thumbnail image

Arrowhead - completed model photo

Submitted to Outerzone: 09/11/2013
Outerzone planID: oz5029 | Filesize: 109KB | Format: • PDFvector • CADfile | Credit*: hogal, KraftyOne

   

About this Plan

Arrowhead. Control line sport delta model.

This is a modern redrawn plan in PDFvector format by hogal.

Quote: "Like to build a Delta? Full-size Plans overleaf. Arrowhead, by Ron Moulton.

Specially designed for the Point five diesels by Ron Moulton, and stunt flight tested with the Allbon Dart. Can be built from one sheet of 1/16 balsa, price 1/2d.

Have you a point-five diesel, a spare tank, a few odd lengths of wire, scrap balsa, dowel and ply? Then all you'll need to make this stuntable little delta is just one sheet of 1/16 x 4 x 36 in medium balsa and 5 in of engine bearer - it's as simple and inexpensive as that!

Flight tested on 22 ft lines with both the ED .46 and Allbon Dart, Arrowhead is fast, manceuvrable, and very pleasing to the eye. It's just the model for flying in a restricted space - and the noise quotient of its baby motor should bring no objection to use of the village green or nearby school playground.

Ready to start ? Well, if you have 1/16 x 1/4 in sheet: carbon trace the eight ribs, leading edges and fin as close together as possible and leave one end free for the nose sheeting and bulkheads - the front one can be laminated. Strip whatever is left into 1/4 in and 1/2 in for TE and braces. Pin centre ribs over the plan, join up with the bulkhead /bearer assembly, and two 12 in lengths of odd TE. Lift off plan and add platform with bellerank, 1/8 x 1/8 in brace, tank and engine, then nose sheeting.

Working 'in the hand', add the end ribs, then leading edges and tip TE's, two other ribs and root riblets. Elevator is built over plan, with odd LE stock as a basis. Ends are dowelled to pivot loosely in ply facings. Join up pushrod, cut and 'patch' LE for lead-out wires, add paper tube for compression screw extension, then fit the fin and under-trough with 1/4 in covering support strips on either side.

A. half-ounce tip weight is bound in the starboard tip, then cover with Modelspan, fit a bubble hood - and fly!"

Direct submission to Outerzone.

Update 08/10/2016: Added greyscale scan thanks to KraftyOne.

Supplementary files

Article pages.
Greyscale scan of original plan as printed.

CAD file

This plan is available for download in CAD format.

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oz5029 datafile

Arrowhead  
by Ron Moulton
from Aeromodeller
April 1953 
16in span
Tags: IC C/L
all formers complete :)
got article :)

 

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User comments

Hi Steve & Mary, Here is Ron Moultons' Arrowhead from the March 1953 AeroModeller. When I saw it I just had to build one, BUT, being a young school lad at the time. I owned just ONE engine, an Allbon Javalin 1.5cc. So a 50% (approx) scale-up was required, and Arrowheads' big brother 'Spearhead' was built and flown. The main constructional change was a full span sheet elevator with cloth hinges. I think part of the elevator, (salvaged from the crash scene a year or so later), is still in my scrap balsa bin. Cheers,
KraftyOne - 08/10/2016
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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.

 

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