Keith Evans 3

I,ve successfully used 4Max coverings .

Thanks everyone for your input I,ve tried twisting the wing .I don,t want to strip and re cover .so it,s going to be a smallish tab on the problem wing .

I forgot to say I,m contemplating using a flat bottomed section . Thanks

I,m contemplating building an electrified version of a June Bug .Large slightly undercambered wing on top and a more pronounced undercamered smaller wing on the bottom.I know it will have different flying characteristics but will it still fly satisfactorily? Currently the design is for single channel but I,ll make it a three channel version . I know some people don,t like messing about with old designs but I have personal reasons for doing so . Any thoughts or ideas would be helpful . Thanks . Keith

Here is my Christmas build.

I have a non-aileron undercambered glider wing with wash in in the outer panel .It is covered in transparent oracover .I have tried heating and twisting but to no avail .I am considering adding a trim tab to the opposite wing to compensate .any advice would be grateful . Thanks

Threaded rods with nuts and washers .

Thanks for all your inputs . It,s really helped .

Is there a recommended current that can be safely taken constantly from an esc.such as a % of its stated rating ?

3mm and 4mm threaded rod plus nuts and washers can be had from B&Q .

Agree with the above . for interest the plans show 2 degree right side thrust and 3 degree down thrust . The planes I design and build myself follow Peter Millers designs of zero zero and work fine . All the Sky 40,s I built have come out around 6 lbs and 12 oz.i.e a pound heavier than that stated on the plan . I believe it is because it is an all liteply construction apart from the tail feathers . Flying on 4s power with an 11x6 prop is fine it,s marginal on 3s Do not use the abs cowls build your own from balsa and ply ,they will last longer . Adding a bit more length to the cowl will help with the balance . I use threaded rod stand offs for the motor and if any thrust adjustments are required it is very easy to do . Best of luck .You will enjoy flying it .

Thanks for the replies .

Could an esc placed close to a receiver cause any problems? Thanks

I found the Sky 40 when in trike mode took off just as well with a fixed front wheel assy. And saved on servos .

I used the original u/c as a guide for the spread of the wheels made out of 10 swg backed up with a secondary brace soldered to it and used 4saddle clamps screwed to a 6 m.m. Ply base mounted into the fuselage sides backed with 3/8” triangular balsa . The u/c was infilled with 1/8”lightply .