Paul Jarvis 1
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Unitracts ???
Paul Jarvis 1 replied to Paul Jarvis 1's topic in R/C Retailers / Distributors / Manufacturers
Hi, Thanks for the info. Spoke to Tony at Unitracts and ordered Nihuis 62" Spitfire retracts which are in stock. Dont suppose there are many companies making quality custom retracts, so hope Unitracts keeps going.... Paul -
Hi, I have tried calling unitracts phone and fax this mornign to order some retracts and both phone and fax seem to be disconnected. I have double checked the numbers on their website, I am sure I have not mis dialled.. Does anyone know what the situation is ? Thanks Paul
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Hi, Still enjoying flying my spit, what a plane ! and its still in one piece ! I found the ESC getting really hot when pushing it on two flights using the 4max set up so I removed the front intake scoop and hollowed it out with a Dremel and cut out a hole in the fus so now the intake really is an air intake !!.... hopefully cooling the electrics "Engine" cowl's held on wth magnets...
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Jim, I notice your comment ... " It seems the general opinion is that flaps are all but essential on this model " and to put my mention of retro fitting flaps to my Spit in to perspective, I should add that this is my first plan build and I am a relative "novice", If TN designed the model with no flaps I am certainly not saying it needs flaps, simply that I personally had issues with fast landings and bending the retracts before, and I ve found it much more "friendly" to land with flaps fitted. And I did not find it to be major surgery, one night or so's work to fit - easy. Fitting the push rods internally would certainly work IMHO. I have simply epoxied 4 small hinges embedded into the existing balsa skin at each flap, yet to see how long these hold up, but they seem strong enuf. Regards Paul
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Hi, Simples... I cut away the rear underside balsa (from the fuse fairing point almost to the aileron), and to just rear of the rear beam / strut thingy. I replaced this with 2mm lightply backed with some uprights on the top side for rigidity. cut out a hole between the rear side of the wheel housing and rad intake and placed a Hitec HS81 in each wing with external push rod on each wing and after feeding a wire thru, pulled the servo wires thru alongside the existing aileron servo wires (bit fiddly). It would be neater to place the servos under the air intakes and push rod internally, but I was too lazy. Easier during the wing build admitedly, but not too much hassle and well worth the effort !
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Hi, I have just retro-fitted flaps to my 62 Spit and I cant beleive the difference it makes ! In calm conditions when it flies at its best, it used to barrel in at a rate off knots and bounce way past me up the runway invariably buckling the retracts. So I cut a quick-access hatch in the underside to allow release of the retracts and constant re-bending of the legs (I even wedged a suitable allen key in the air intakes). But now with 50 or 60 deg of flap it floats in for a gentle landing (or take off) at my feet and no more buckled u/c. I would defo recommend flaps on this Spit ! John... I would suggest Unitract sport retacts with their Oleos are the way to go. Paul
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I used the Unitract standard sport retracts as recomended in the build and 3inch wheels, I believe the build says sheet the wings, top and bottom, and then join the two halves with 3 inch glass tape / epoxy, this is what I did. PS.. Ensure the wing is held in the correct profile somehow when sheeting as I got warping of one wing when weighing down the wing / sheeting during gluing. Paul
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Hi, Exhaust stacks are now fitted, just gotta add some lettering. I used Unitracts, not sure whether oleos would help stop the legs bending, I doubt it as I guess the wire at the top would still bend. Flew a good 10 to 15 mins today on two "parallel wired" 3S 2200 lipo's at halfish throttle, flies beautifully ! 10 to 15 mph wind and a smooth shallow approach but it still came in rather fast and bent a leg, kinda wish I had fitted flaps now. Havent dared fit leg covers as I need the clearance a bare leg offers, gotta improve my landings and / or smooth the runway down considerably ! Final all up weight 3.0 kg (7 and a bit lb). Initially I broke a few props on take off as shes nose heavy and kept tripping up on the suggested elevator throws, now cured this problem with LOTS of up-elevator on high rate for take off and £1.50 props from giantcod. Paul
