Can-Do (oz14495)

About this Plan

Can-Do. Free flight cabin sport model. Mills 1.3 diesel shown.

Quote: "Can-Do! A 44 inch wingspan sports model for free flight or 2/3 channel RC systems and 1 - 1.5 cc engines, designed by David Boddington."

Direct submission to Outerzone.

Update 14/4/2023: Added article, thanks to RFJ.

Quote: "Can Do! John Toyer builds another Boddo Design. A few weeks ago at a local flying field David asked me if would be interested in building a free flight design he had recently conjured up knowing I enjoyed built up modelling.

The last DB model build in our workshop was a Tyro (oz6832) which we converted to two channel for aileron and elevator, powered by a Frog 150 diesel engine. Now luckily, when building models from plans, I usually make a wing rib template as I am sure most modellers do. Having worked for David for a time after leaving school, packing kits, I noticed most of the wings were constructed or contrived to a similar pattern and so it was of no surprise to find my template rom the Tyro was identical!

I also felt that the model was eminiscent of the DB Gringo free flight model which may bring back fond memories for some.

Tailplane and Fin: The tailplane is of the lifting type rather than just a flat plate stabiliser but is straightforward to build and no problems should be encountered. Start by cutting the ribs in pairs from 3/32 balsa (I used soft balsa for the ribs for lightness). When all the ribs have been cut lay down the leading edge of 3/16 x 3/8 medium balsa and the 3/16 balsa tips.

Next lay down the 3/16 rear spar the 3/16 x 3/4 trailing edge and add the 3/16 centre section. Fit all the ribs and top spar of 3/16 x 1/4 and slightly taper top spars to tips.

When dry, lift from the board and lightly sand all over to section, after covering add the 3/16 sheet locating plug to the underside of the tailplane.

The fin (which has a Bowden influence) is very straightforward, consisting of 3/16 parts built over the plan. Some thin tin hinges will be required for the trim tab and once again lightly sand to section.

Wings: Now this is where my previously cut template from the Tyro came into its own. The method of rib cutting I prefer when possible is to cut a stack of blanks, tape them together, use the template to mark the top rib and then use my band saw to, do the rest, which generally produces a nice set of wing ribs. The ribs were cut out of 3/32 balsa as shown on the plan. The bottom trailing edge is pinned down and the 3/16 bottom spars placed on the plan using 2 or 3 ribs to line them up, pinning when square and adding the ribs.

The wing tips should be cut from 3/16 sheet, built flat on the plan but not glued into position just yet. Add the 3/16 square leading edge and lift the tip slightly to meet it. Now glue into place the top 3/16 square spar and add the 3/16 gussets at the wing tip..."

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