Biggles' Elder Brother - Moderator Posted October 28, 2012 Share Posted October 28, 2012 That's coming along really well David. Looking forward to seeing it finished and of course the experience of the maiden! BEB Quote Link to comment Share on other sites More sharing options...
David Ashby - Moderator Posted October 29, 2012 Author Share Posted October 29, 2012 Thanks lads. Steve - yep they're 6mm balsa with a spruce l/e sanded to a flat bottom aerofoil. I'm leaving that till last though. Quote Link to comment Share on other sites More sharing options...
Richard Harris Posted October 29, 2012 Share Posted October 29, 2012 David, Nice craftsmanship, I do like the cowl . You will be surprised at just how easy the blades are to make, I remove wedges of wood with a belt sander then finish off by hand. I know that others who don't like the mess swear by a razor plane to get the bulk off. Just seen this video of a gent in Australia with his just flown his Fire Fly II for the first time. He has constructed his from Depron and carbon tube to keep the weight down to 600 grammes so as to get the best from the HK blades, flies very well I think for a first attempt. Rich Quote Link to comment Share on other sites More sharing options...
Tony Bennett Posted October 29, 2012 Share Posted October 29, 2012 nice flyer, but whats the flappy thing i keep seeing. Quote Link to comment Share on other sites More sharing options...
David Ashby - Moderator Posted October 29, 2012 Author Share Posted October 29, 2012 Thanks Rich, well I'd be very happy with that. Yes that was a strange looking bird. I'll probably use a david plane on the blades I think. Covering tonight. Quote Link to comment Share on other sites More sharing options...
Martin 10 Posted October 29, 2012 Share Posted October 29, 2012 Hi Dave, are you still going to flip the rotating part of your HK head over ? Ican see on your last photo that it has not been done yet. I am not sure if you know that these heads are assembled wrong by Hobbyking. Regards, Martin Quote Link to comment Share on other sites More sharing options...
Foamie Dave Posted October 29, 2012 Share Posted October 29, 2012 This is all getting a bit too tempting Have you any more plans left Rich ? - fleabay is showing non available. I can paypal funds over if youve any more up for grabs Quote Link to comment Share on other sites More sharing options...
simon burch Posted October 29, 2012 Share Posted October 29, 2012 Don't fly with anything that came on that HK head. Apart from the hub and the control arms, the complete head is replaced with a 0.8mm gf plate. Try bending the plastic they use a couple of times and see what happens.....wouldn't last long in flight. Quote Link to comment Share on other sites More sharing options...
David Ashby - Moderator Posted October 29, 2012 Author Share Posted October 29, 2012 Martin - yep, thank you, I was aware, that's on the to-do list - a ply plate as per plan. Yeah, go FD go, go, go Edited By David Ashby - RCME on 29/10/2012 20:11:48 Quote Link to comment Share on other sites More sharing options...
Foamie Dave Posted October 29, 2012 Share Posted October 29, 2012 Posted by David Ashby - RCME on 29/10/2012 20:08:30: Yeah, go FD go, go, go I figured without any wings and fiddly bits to worry about it would make an ideal kitchen table build ...just need a kitchen table and I'm sorted..lol Edited By Foamie Dave on 29/10/2012 20:19:05 Quote Link to comment Share on other sites More sharing options...
David Ashby - Moderator Posted October 30, 2012 Author Share Posted October 30, 2012 That's no excuse Dave, you've got floors in your house haven't you? Covering and spraying last night. Edited By David Ashby - RCME on 30/10/2012 06:19:05 Quote Link to comment Share on other sites More sharing options...
Grasshopper Posted October 30, 2012 Share Posted October 30, 2012 Great shaping and curving and excellent finish David - and posh: a tail-wheel. I did the head assembly and made up the glass-fibre plate last week so almost there now. Blade sanding for me today. Spruce leading edges already bonded and paper aerofoils glued on each end. I have made up an aerofoil template in hard plastic so I can check my sanding as I go. I will use a belt sander for speed for rough shaping - outside the workshop! I had to do some fettling of the two parts of the head which hold the mast top. One was about 1.5mm narrower than the other so it took some careful filing to get it all to fit. Peter Edited By Grasshopper on 30/10/2012 08:00:46 Edited By Grasshopper on 30/10/2012 08:00:58 Edited By Grasshopper on 30/10/2012 08:01:24 Quote Link to comment Share on other sites More sharing options...
Foamie Dave Posted October 30, 2012 Share Posted October 30, 2012 Posted by David Ashby - RCME on 30/10/2012 06:18:07: That's no excuse Dave, you've got floors in your house haven't you? Thats the idea !! Yours is coming along great D, its going to be a little cracker, keep those pics coming! Whats the overall fus length ? (inc boom?) Quote Link to comment Share on other sites More sharing options...
David Ashby - Moderator Posted October 30, 2012 Author Share Posted October 30, 2012 Dave - mine seems to come out at 33.5". Peter - it would be interesting to see a piccy of your rotor head and the blades when you've done them. That's a good idea re the template. I'll be adding the ESC and Rx this evening to make sure it's all shipshape then it's rotor head and then no excuse not to attack the blades! Quote Link to comment Share on other sites More sharing options...
simon burch Posted October 30, 2012 Share Posted October 30, 2012 Definitely need some contrasting colours on there David.....you have been warned !!Cheers,Simon Quote Link to comment Share on other sites More sharing options...
Richard Harris Posted October 30, 2012 Share Posted October 30, 2012 David, Nice finish. I do agree with Simon a roundal or two wouldn't go a miss to help visability. Rich Quote Link to comment Share on other sites More sharing options...
David Ashby - Moderator Posted October 30, 2012 Author Share Posted October 30, 2012 Posted by simon burch on 30/10/2012 11:59:22: Definitely need some contrasting colours on there David.....you have been warned !! Cheers, Simon It's not done yet Simon I was going to add some trim. Edited By David Ashby - RCME on 30/10/2012 14:48:06 Quote Link to comment Share on other sites More sharing options...
simon burch Posted October 30, 2012 Share Posted October 30, 2012 Needs to be something quite bold that will stand out. Lookiing forward to seeing what you do !! Quote Link to comment Share on other sites More sharing options...
BILL PETTIT Posted October 30, 2012 Share Posted October 30, 2012 Looking at the tail feathers in the photos one side is white and the other side is orange, now this makes tracking and orientation much easer trust me it works. Model built by a good friend of mine Bill Edited By BILL PETTIT on 30/10/2012 17:17:42 Edited By David Ashby - RCME on 31/10/2012 08:15:00 Quote Link to comment Share on other sites More sharing options...
Richard Harris Posted October 30, 2012 Share Posted October 30, 2012 Bill, Don't take it out flying today!...you may lose it! Rich Quote Link to comment Share on other sites More sharing options...
Tom Wright 2 Posted October 30, 2012 Share Posted October 30, 2012 Bill On the other hand you could establish a world speed record . Tom. Quote Link to comment Share on other sites More sharing options...
Grasshopper Posted October 31, 2012 Share Posted October 31, 2012 Two blades down and two to go. I will probably need that essential spare! I cut these two blade blanks on the belt sander yesterday afternoon. Not as difficult as I had expected and with a plastic template like this, made a lot easier as you can rapidly check the profile along the length of a blade as you go. I will make another two this morning when the sun warms things up a little! The black outline on the blade ends is a cutout copy of the plan profile, black felt tipped and glued onto the end before I started to sand. I made a pencil line on the front hardwood edge 2mm from the bottom and sanded a flat between this line and the rear of the top hard wood edge. The actual profile can then be easily sanded in. A second flat is made between two pencil lines: one on top of the blade 2cm forward of the rear edge and the other on the rear edge, 1mm from the bottom. Again this leaves an easy profiling task. Peter Quote Link to comment Share on other sites More sharing options...
David Ashby - Moderator Posted October 31, 2012 Author Share Posted October 31, 2012 Excellent, thanks Pete, I've taken careful note there. My blade bashing experience starts this weekend I think . Quote Link to comment Share on other sites More sharing options...
Biggles' Elder Brother - Moderator Posted October 31, 2012 Share Posted October 31, 2012 I like the silver finish - very smart! BEB Quote Link to comment Share on other sites More sharing options...
Grasshopper Posted October 31, 2012 Share Posted October 31, 2012 Two more blades today and then the weigh in. Three at 20g and one at 17g. Odd - until I noticed the difference in colour of the leading edge on the light one. I had used some locally bought (in France) wood I was told was 'hard' called samba which it turns out is obeche which although it seems quite hard is also very light. Hence the weight difference - and if I want to use this one I will have to make two more of the same. Later perhaps? Quite content though as I have 3 blades at 20g ready for CofG testing and hole boring so good progress. Rich says the blades should weight 24 - 30g so not sure how I have managed to be so light but I guess by the time they are covered and the f/g parts added they will be near 24g. Peter Edited By Grasshopper on 31/10/2012 20:28:18 Edited By Grasshopper on 31/10/2012 20:28:40 Edited By Grasshopper on 31/10/2012 20:28:55 Quote Link to comment Share on other sites More sharing options...
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