Phil's News

http://www.indoorduration.com/Poonker.htm

November 1st Poonker building demo at Jean Simon Room, Colwall Village Hall

The Poonker arose from a need to get a ministick to the top of the hanger at Lakehurst, I needed a plane that could climb rapidly without the attendant stalling like the little minies usually do. Construction is typical depending on wood strength my wing does have a tiny bit of flex on launch augmenting the adjustments built in. This ministick is an evolution of Joe Krush's K-777 which is always a consistent performer.

The prop was formed on a 2" dia cylinder which is made from a thin deformable styrene, when the prop is put on about an 18deg angle I then deform the tube to give it a more radical shape, more twist is evident at the base of the prop rather then the tip. I also run a bit less pitch then is usual I am not sure how much, I use the looks about right method and am always tweaking depending on the mood of the aircraft Walt Vangorder says it looks pretty low.

I use a lot of space between the rubber and the motorstick so as to avoid hang ups. Be sure to have the wingtips very strait as to avoid any drag. Wingtips are covered on the inside using separate pieces of Mylar this makes for a very clean transition at this joint, on launch it does a lot of flying on these tips. I adjust to conditions as I fly this thing so the plans show about what I had that day.

Conditions were in the low eighties and in the afternoon when the high time was set. You have to get a lucky day to do big times there were several flights over 14 min with Poonker the same day but it wasn't until early afternoon that conditions became optimum. This ship runs on smallish rubber that has the living bejeezus wound out of it ,for these flights learning to wind until the next turn on your winder is the last is important, I also massage the knots before launch this helps a good deal with getting this rubber to unwind all the way.

Poonker works well in the hanger but I have trouble keeping it out of the ceiling at Johnson City this is where I will tweak in more pitch and make it do some tricks before the climb. I think this design will work well for low ceiling with a bit more prop area and a bit more airfoil.

Events http://www.malvernsoaringassociation.co.uk/cal12.html

results http://www.malvernsoaringassociation.co.uk/lb.html

October

Sunday 21st Slope 5 − Slalom, start 10:30am Malverns − Table Hill area

Friday 26th Indoor Flying [7 − 9:30 pm] Elms School

Phil's news letter 22/10/2012

Gloucester cooker repairs

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