NSA
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Bought a kkmulticopter blue board from HK last year, about £20. Built a test rig, with homage to Faireys late 50's Rotodyne, 4 x 50watt outrunners, 5 x 3 props (2 x CW and 2 x CCW), 3 cell 2200 Lipo. AUW 22oz. First version was X config, but since photo I have reworked to give the Plus config as I reakised I have only got '+ config' s/w loaded. Any one got experience yet? Also anyone know where I can get some 'flash' kit to upgrade s/w etc. Tested (on tethers!), violent control movements and not very stable. Set ATV's as suggestd but havent tried adding expo yet
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Only just found this thread. I built a version of Kestrel in 2009 converted to electric. Same problem with CoG but followed the route from my small autogyros balanced just behind the rotor masts to give slight nose down attitude. Despite the time lapse I hav estill not flown her, but taxi trials showed up two issues. I found that with the rotors mounted one way that the propwash cancelled out the forward motion and the rotors stopped ! Reveresd the rotors and blades ru up fine, but so far only fast taxi runs! Details for interest/comments are: Outrunner 300 watts running off 3 cell x 2200maH Lipo 12 x 6 APC glass/nylon prop PIctures below: The others are a full bodied Al foot Twirly (Blue) and a 2/3 rd size for Indoor(Red)
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My votes are: Best Retailler: Sussex Model centre Best Mail Order: BRC Hobbies Best Kit: Whats a kit? Best plan to date has been Peter Millers Slingsby T31M ! Best Distributor: Ripmax regards NSA
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My progress to date, decided to abandone the wwII fighter scheme that G-BZLK currently wears in favour of an 'homage' to my days in the ATC when I flew a few circuits in XB300, sadly she was consumed in the hanger fire in 1978 along with her sisters and a least one T22B Sedberg. At this rate I'll not have the wings finished this Summer, so there should be some feedback on the to dihedral or not debate!
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Have just finished the fuselage and tail feathers today(will put pictures in my album tomorrow), wings next. I agree that in Peter's article he shows dihedral but then in the text reckons she had a little too much? From Slingsby's drawings the original T31 had a flat, zero dihedral bottom wing, which coupled with the tapered thickness gave an anhedral look! So I also would welcome some ideas, would just making the top wing surface at zero degrees be enough?
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Well not the fastest builder on the planet but at least I have started! I am basing my model on the fullsized plane G-BZLK which was based at RAF Kenley a few years back. This had a slightly narrower firewall than some conversions . I am fortunate to have access to a small cnc router machine (after Easter I hope to move up to a laser cutter!). So I have built a box assembly that runs from F3 to front firewall. Formers are 3mm birch ply and the rest is 3mm Liteply. The main 1/4" square ladderwork of Petes design will be retained with this box slotted in between. All tho this is heavier it should compensate for the loss of the 'lump' of the 4 stroke. The cavernous front end will allow the lipos to be slid as far forward as needed. The rest of the models construction will be as plan. The initial 'e' choice is a low Kv 400W outrunner with a large prop (12" ish). AUW should be no more than the 4 stroke version so we are looking at 80W/lb, which should be fine for a gentle lady. More pics in my album
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