Gliders > Slope Soaring

Mini Quark build

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johnfireball:
Hi,
  Nearing the end of build now, covering in progress, cg looks good maybe 15mm forward of where indicated on plan. Weight with battery 570grm and 450grm without. I added a false spar above the carbon to support the covering a little better. Hoping to have it ready for weekend.

 

Servos at 12mm thick protrude slightly from lower wing, but look ok. The covering I used is more transparent than I wanted (problem with online buying is you don't get a proper look at the goods).

 

John.

alibodin:
Looking good John,

I like the semi transparent covering think it looks nice. Thought it was by choice until I read the text.

A good inspiration,

Alistair

johnfireball:
Hi,
   I do like the look but I would have before building sanded all the laser burn from the parts as it shows through the covering especially on rib edges and gives a dirty look.
John.

Fred:
I like it John!
Love the cream colour, and the way you did the nose is very nice, really blend well with the fuselage  :clap:  :clap:

johnfireball:
Hi all,
       So the electric micro quark had her maiden flight today on Killakee slope and was successful despite a few minor hiccups. Peter launched it for me into a sw wind with minimal lift and it performed very well as a glider however when I applied power the aileron and elevator controls became incredibly sensitive (due to the increased air passing over them) and the model became unflyable under power. I reduced the rates and what a difference, it was a different model.

 [youtube]https://www.youtube.com/v/MrpTcLCb1vg[/youtube]


I noticed some aileron flutter at the inboard ends under power and feel I will have to do some work to make the ailerons more rigid and prevent twisting.


Resting between flights.

Overall I think this model has the potential to make a superb electric glider for flying on slope or flat field. It climbs so fast near straight up that only a few seconds on power will have it near out of sight and ready for the glide down. It flies fast and stable as a glider and seems to stay up even in marginal lift.
Looking forward to flying it again.

John.

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