JS3 chatter

Would be interested to know details of four tubing connector fittings required to "plumb" the probes in the tail each assembly and disassembly sequence. Surely its not a "press tubing onto a barbed in-line connector" process. Thinking it would be a two person job...one to balance the horizontal and the other to connect the fittings.
Better yet...you assemble once at beginning of contest, tie out every night, and disassemble once at end of contest. Awh... the convenience of good weather, a sustainer, poly paint, and good covers.

Jonkers posted an update this morning with technical details.


Wing area under 94 ft^2 and wing loading over 12 lb/ft^2 possible. Minimum wing loading will be well over 8 pounds for most pilots.


http://www.jonkersailplanes.co.za/js3revealed.htm

The included 3-view only shows 15M. Is it not intended to be 15-18M?

On Thursday, December 15, 2016 at 10:01:02 AM UTC-6, wrote:
The included 3-view only shows 15M. Is it not intended to be 15-18M?

Spec page says it has a 4 piece wing. Doesn't look like enough "crank" in the wing to be a real trailer issue. I would guess there may be another span option to follow soon.

Steve Leonard

It was noted on Facebook that the Vne chart on the panel lists 15m and 18m spans. Jump to your own conclusions...

My calculator says 267 kg empty with 8,7m2 wing.

Polydihedral wing already has an increased roll stability, moving the wing upward increase further roll stability.

I don't know if this is an advantage.