Replies to This Discussion

Permalink Reply by Michael Krader on May 5, 2012 at 1:20pm

you need to go look at the build log for trappy on his new flying wing.

 

here is the kink. really nice write up and lots of info.

http://fpvlab.com/forums/showthread.php?873-Balls-of-Steel-Build-Th...

 

Mike

Permalink Reply by Chad Colt on May 15, 2012 at 10:15pm

I have build a couple of 8 foot wings. Maby my experience can help.

I do not have any build logs.  I just threw the wing together over a weekend. 

I would be more than happy to answer any questions about the building process.

 

here is flying video of before AMP install(these videos were taken durring initial testing). It took me about 3 flights to get the PID's tweeked,  Other than minor pid tweeking,  AMP is handling the larger airframe GREAT!!!

 http://www.youtube.com/watch?v=0axE_ZKQAuM&feature=bf_prev&...

http://www.youtube.com/watch?v=zWvnRF0__IU&feature=channel&...

 

Motor is eflight 160.  Or a exceed monstorpower 160.. 

 ESC Castle 120 HV.

Castle ubec HV 25 amp.

Servos s9156 futaba.

10000 mah 10-12s. or 5000 mah 10-12s

This set up provides PLENTY of power.  and gives me a solid 30 mins of flight.

 

 

 

ModeratorPermalink Reply by Graham Dyer on May 19, 2012 at 4:58am

I've had a fair bit of experience with flying wings, biggest was 2.6m (100in) span, here's some pics, have some video of it too somewhere:

Later cut it apart & converted it to zagi-style swept wing with 2 vertical stabs on the wing tips and retracts. It flew on ridiculously little power, I think it was about 400W with a 3S LiPo, motor was a Dualsky PR40 with a 13x6.5 prop and it flew easily on 50% throttle. Can't remember the weight but think it was about 3.5kg (7.7lbs).

Normally planes need about 100W/kg (50W/lb) to fly, just watch that CG (I seem to recall the CG at +/-17% or less).

This was before I got into autopilots (although I did fly an APM1 equipped wing this morning but it's not nearly as big)

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