Sunbeam (oz7276)

 

Sunbeam (oz7276) by John Kay from Aeromodeller 1979 - plan thumbnail

About this Plan

Sunbeam. Free flight sportster, Cox .020 Pee-Wee shown.

Quote: "34 inch span free flight sportster for .3 - .5 cc motors. Sunbeam, by John Kay.

SUMMER FLYING DAYS are here again, and what better way to enjoy them than with this attractive quick-to-build all-sheet free flight sportster. Sunbeam is ideal as a first step in power modelling, and follows on from my earlier design Moonco (oz2352) the CO2 powered model that was offered as a free plan in the May 1978 Aeromodeller. The all-sheet construction follows the same lines and the model has a similar Jedelsky type wing. The tailplane is fitted on the underside of the fuselage so that the fin can be directly glued to the fuselage and not knocked out of alignment.

Whilst designed for free flight, Sunbeam can be converted to fit light-weight radio weighing 4 - 5 oz. Suggested modifications of the fuselage formers are included on the plan. The original was powered by a Cox Peewee .020. The model is suitable for other small engines such as Cox TD.020, DC Dart and Humming Bird. The more powerful of these engines should be used for the radio control version.

If possible choose two sheets of 3/32in quarter grain sheet and the other two medium straight grain. Select a straight grain and a quarter grain for the wing panels. The remaining quarter grain 3/32in sheet is cut in half and re-joined to form an 18 in x 6 in panel. Choose the size of the sheets with a minimum gap between them and then using Sellotape to join the panels in three or four places and then a further long strip is used to cover the whole length of the joint. By folding back the balsa, using the Sellotape as a hinge, squeeze a bead of PVC glue along its length and close, remembering to wipe off the surplus glue with a damp cloth.

I use PVC adhesive that will sand; however, if you prefer balsa cement, pre-cement the joints before finally gluing together. The panels should now be left to dry, weighted down on a flat surface, for 6-8 hours...."

Hi Mary / Steve, the plan of the Sunbeam. See its not on the outerzone yet . Sunbeam by John Kay from August 1979, Aero Modeller. Free flight power sports model, 36 inch wingspan for Cox 020 Pee Wee. Regards,

Direct submission to Outerzone.

Supplementary file notes

Article pages, text and pics.

Corrections?

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

Sunbeam (oz7276) by John Kay from Aeromodeller 1979 - model pic

Datafile:
  • (oz7276)
    Sunbeam
    by John Kay
    from Aeromodeller
    August 1979 
    34in span
    IC F/F Trainer
    all formers complete :)
    got article :)
  • Submitted: 06/12/2015
    Filesize: 329KB
    Format: • PDFbitmap
    Credit*: Starfighter

Sunbeam (oz7276) by John Kay from Aeromodeller 1979 - pic 003.jpg
003.jpg

Do you have a photo you'd like to submit for this page? Then email admin@outerzone.co.uk

User comments

Hi Mary /Steve - yet again another photo, my old Sunbeam, built winter 1979/80 [more pics 003]. It used to have a Cox Pee Wee on it at the time, made a few flights. Just now I converted it to 3ch radio with a small brushless motor. Its 1st flight showed a major disfunction to do something as simple as just that. Tried a few times more, its pattern was uncontrollable and making me feel "Oh wow, a challenge to sort this out to fly", which was not what I intended at all - hoped for a ready-to-go fun thing. But on the photo looks good though :)
Anon - 25/07/2017
Add a comment

 

 
 

Download File(s):
 

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, 2011-2020.

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.