Mention ‘built from a plan’ to most at the average flying field today and an image of a highly skilled old-timer in front of a large ¼ scale Tiger Moth complete with fabric stitching, wire bracing and braised undercarriage will spring to mind. Not all plans need be so complex or strike so much fear and today’s subject is the Mini Whizz delta. This small and simple design by Brian Cooper was offered as a free pull-out plan with the July 1999 issue of RCM&E and has been popular ever since. Within my local club Mini Whizz’s were for a long time the model of choice for streamer combat. Hopefully you will also see how easy some plans are too follow and be inspired enough to have a go yourself. Even a simple aircraft like this will stand out as unique within a flight line dominated by ARTF clones.
I’ve not been able to find the plan on RCM&E’s plan service but the original magazine can often be found on eBay or magazine exchange. I will see about getting my plan scanned and uploaded (with RCM&E’s permission).
Unlike a kit, the parts will need to be cut out from a pile of freshly delivered raw balsa. The quantity and grade of wood required is up to you to determine and will require measuring the length of spars, ribs and formers on the plan to compile an inventory (I’ve listed this at the end of this post). For this Mini Whizz I ordered the wood and all accessories online from Slec for just under £50 including postage.
And that’s it – one simple delta that is fast, manoeuvrable and offers seemingly endless vertical climb-outs. Hopefully I’ve inspired you to have a go at some balsa-bashing for your next project!
|Quantity||Metric (mm)||Imperial (Inches)||Wood Grade|
|1||3.2 x 75 x 915||1/8 x 3 x 36||Hard|
|2||2.4 x 75 x 915||3/32 x 3 x 36||Hard|
|1||4.5 x 75 x 915||3/16 x 3 x 36||Medium|
|10||0.8 x 75 x 915||1/32 x 4 x 36||Medium|
|12||4.5 x 12.5 x 915||3/16 x 1/2 x 36||Medium|
|Balsa Triangular Strip|
|1||9.5 x 9.5 x 915||3/8 x 3/8 x 36||Medium|
|1||0.4 x 300 x 300||1/64 x 12 x 12||N/A|
|1||3 x 300 x 300||1/8 x 12 x 12||N/A|
|1||110ml (4oz) fuel tank|
|2||M2 metal quick links|
|2||M2 x 228mm (5/64 x 9″) threaded pushrods|
|2||Medium size control horns|
|1||Spinner 45mm (1.3/4″)|
|1||Engine Mount (19-35 cu.ins) + bolts, captive nuts etc.|
|1||approx. 2.5 metres covering film (split this if using two tone)|
Any chance of uploading the James?
Is this the same Richard from Thirsk?! Can you reply with your email address – don’t worry it wont get posted up on here as all comments come via the dashboard and need to be approved before appearing on the site.