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I have one and its a hoot, even under slope conditions which you would think are too windy. Have aero towed, bungee'd and hand launched it and its good at all of them. Even came second in the Long Mynd Scale event one year, when there was very little wind. Some wag asked if it would fly inverted, so I tried it and caught a thermal and it went up inverted - great fun. John M
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I used to high start mine! Went up great but it's a little too fast coming down again Slope soaring is what it does best! Never aerotowed it with my Carbon Cub. I'd like to but I think a bit of practise with the Tundra/Ka8 combo first wouldn't go amiss!!! Tony
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Change of status for slope soarers over 7kg mass
Biggles replied to martynk's topic in News and Information
Just to put all this together for clarity: The published exemption from the standard 400 ft maximum for all small unmanned aircraft >7kg applies to BMFA, LMA, SAA and FPV-UK members only. (Ref: Para 2, ANO 2016) A glider with a mass that is greater than 7kg but less than 14kg may be flown at a height in excess of 400ft above the surface of the earth beneath it, provided that the aircraft is not flown at a height greater than 400ft above the remote pilot at any time. (Ref: para3.f, ANO 2016) If your slope soarer is less than 7kg then you may fly higher than 400ft measured anyhow, provided you maintain visual contact sufficient for control. All this is providing you are not within a flight restricted zone (FRZ) within which you need to ask permission to fly. Now, what’s tomorrow’s forecast… John -
I know this thread is well dead but..... I've had 2 tiny k21s.... loved them both, they flew so well and looked amazing. just a shame they discontinued them with no replacement. If anyone comes across one for sale, hit me up or pick one up yourself you won't regret it
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I was really struggling with my Frsky stuff, I was getting twitches on the servos and not just an increased buzz, but I moved the wires around a few times and it seems to have settled. Im using the RX6R and wondering if the D4R would be better as it doesn’t have the latest increased sensitivity? @Neil Harrison I know right?! I’ll be into you for my next plane soon what you got at the moment?
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+1 for the FrSky RX The G-RX6 (with altimeter / various) is brilliant
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About time you got this flying...…. FrSky is amazing and the new receivers are not only smaller, but also have a 40% increase in range
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I know what you mean - I was circling with Red kites twice at the weekend (at the National Centre...) I can see both points of view. For those flyers who aren't interested in the kind of events (mainly competitive flying it seems) that are held there its largely pointless. For those that attend those events its a great central hub that provides a good venue (that is equally awkward to get to for everyone )
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Lease cost for '19/'20: £27,000 (out of a total expenditure of £72,000) Steve
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the carbon is on the inside between the carbon outer skin and the rohacell 3 layers of carbon tissue all round and a carbon stick as such stuck to the original wing spar hate to stick anything on the out side as I feel I have just done it the easy way lol,sad I know but that's me
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So what is this fantastic facility? - basically a model airfield - a "patch". Any other model airfields out there? - amongst the 780 affilliated clubs? - any with toilets? - tea & coffee? - any that hold gatherings & events? - any others that are subsidised nationally by 36,000 members? Phil.
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Open on 2.4 please Peter. BMFA 027713 BARCS 3106
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Looks good. What have you used to bridge the break? I don't see any carbon on the outside.
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Three weeks late but you still got me
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3 pics of the finished wing sorry forgot to do a before and during pics
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I got a knife between the carbon skin and rohacell to separate the 2 about 30mm all round both sides of the wing then I got a sanding bar and slid it in under the carbon and sanded the rohacell about .03 of a mm all round both sides and then cut some strips of carbon tissue 60mm wide and slid them into the main wing half way and did3 layers all different ways then just supper glued it holding the carbon skin tight to the core so it bonded all 3 together and let it then dry ( cup of tea time ) then made a carbon spar to run down the back of the main spar about 70mm long by the depth of the wing and mafde it sharp each end and slid it in both ways down the back of the main spar then glued it to one side then cut the tissue sticking out till it would allow the 2 halfs of the wings to but up nice all round then I just supper glued it all and let set.then when dry I just got some wet and dry and sanded it smooth came out really good and I was well pleased so like I said yesterday me and simon had a couple of hours before the rain and we could not brake it so seems good and looks fairly tidy,if I wanted to be bothered a di of filler and a sand and some fresh paint you would be hard pressed to see the mend sods law the underside looks very good and neat so when flying you really cant see it at all and if flew same as before and did not seem to ned a c of g change so well pleased with it all
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(The weight shown on that front scale is with ballast) I had to extend the rear leg since my scales are not the same height. If it’s not level then measurements will not be correct.
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Well, its certainly wet and windy out there. The field at the back of the house has long grass in now which was great for soft landings. Elevator trim is somewhere closer to correct and with my biggest ballast stick (which is only 60g) I could just about hold position in the sky. No damage, everything held together. The CoG measuring device I was referring to was a cardboard version of a 3D printed thing someone posted on RCGroups. I can't find it right now, but basically if you have a stop to put the wing against and a known distance between the two points (200mm in my case) at which you measure the weight then you have: CoG (mm from leading edge) = 200(mm) * (Rear weight/Total weight)
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Hi Mike I get a similar buzz as I'm driving up the little hill to the main car park at Ivinghoe.......I get an even bigger buzz when I am joined in flight by Red Kites flying there Buckminster is a round trip of 240 miles for me, I don't compare the journey there and back as multiples of the BMFA annual subs I simply work out what else I could do with the cost of the eight gallons of petrol I'd have to spend, and how much that is as a percentage of my pension Oh, and BTW Mike DLG, there IS a good slope quite close to the National Centre, unfortunately it's not a patch on the Ivinghoe hills I too hope that other BMFA members visit the National Centre and enjoy its facilities, it's just far too far for me to travel for a day out, oh, and did I mention, too costly too? Regards Pete BARCS1702
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How did you do the repair "inside"?
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Hay glad its mended and ready to fly again after the weekend I have managed to mend my Snipe wing I snapped in half on the sat as well ,should of took some pics along the way but forgot sorry came out really well using carbon tissue and supper glue all on the inside under the carbon skin and between the rohacell core so nothing on the ous side to add drag lol me and my mate Simon managed to have a couple of hours yesterday flying and trying to brake the wing but it held fab and not even a crack or noise from it so well pleased so I am sure yours will be just as strong once you get some weather to go play again was great to meet you the weekend and I look forwards to my BAMF turning up soon, MKS servos should be here tomorrow for it so be no excuses not to get it done and flying Simon C
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Tissue covering: It's like Marmite, you either hate it or love it! I've always had an aversion to it, I guess because the skill or patience wasn't there when I was much younger. My dad's brother had a huge stash of the KeilKraft Flying Scale kit range, every time we visited he would give me a kit. I would build it fairly reasonably then hand it over to dad to cover it. We scratch built a 1/12 Lancaster in 1977, Nylon covered but with a bit too much dope, giving the 'starved horse' look on the fuselage. It's still in my loft. Just recently I decided to try and banish my covering demons and deliberately tackle tissue covering. I read loads of guides (everyone has their own way) and waded in to finish an Airsail Voltimer that I built in February. Unsure of the quality of tissue offered for sale today I found some NOS Star Span tissue. The trading status of the company supplying it is unclear, I would like some more, emails go unanswered. The Star Span shrinks very well with water only, if there are any persistent wrinkles they can be removed with a covering iron. The finished job came out quite well (for my standards!) and the only problem is the tissue is quite fragile as it's the lightest weight (9g sq/m) and is probably intended for smaller models. I bought some lightweight tissue at the Nationals a couple of years ago for a rainy day, it could be Modelspan, seems good quality anyway. It has a grain which I've placed spanwise on the Arriba tailplanes, one coat of 80/20 dope/thinners applied to the veneer and rubbed back, then dry tissue draped over the part and misted with a water spray borrowed from Mrs B. Same strength dope applied around the edges only then let the water do its job of shrinking. Repeated on the other side. Just now I brushed the remainder of the surface with dope (missing the edges in case they come adrift), both sides at once to reduce risk of warps. I used the tailplane wires to hold it under a dead gel cell battery. Will rub that back (500 grit) then switch to Banana oil/Amyl acetate, as many coats as it takes to get a finish ready for primer.
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How does your split scale work?
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I agree with you 100% Mike. I think it is sad that some people cannot appreciate the fantastic facility we have with the National Centre. I wonder how many of those have even been there? I imagine that if it had a fantastic slope as well, there might be less discontent. But you can't please everyone all of the time.
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We have two major soaring events at the our BMFA National Centre this year - I'm going. I'll get a buzz driving down our entrance road to our buildings. I'll have indoor toilets and a kitchen where I can make a cuppa and I'll shelter in the hangar if it's bad weather. I'll meet with fellow model flyers - fly some gliders and have a good time - you can't do any of that via an online presence. I'll spend more than the BMFA sub just on fuel getting there and back. I don't think about how many annual subs the models and gear in the back of my car cost me. I'm just glad that our predecessors invented the BMFA and grateful for what is achieved for all model flyers.
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