kasper Posted October 16, 2016 Posted October 16, 2016 I thought of lapping the fairing at the TE so the body of the rivets are inside the fairing - like this:[ATTACH=full]46304[/ATTACH] Surely that would be a substantial drag reduction? Probably not worth the constructional difficulty - that fold on the trailing edge to create the lip you want to rivet into is a HUGE stress riser in the material and I suspect tyou will get tearing and cracking along the edge. Probably better to do what others have down and just rivet the trailing edges together with a mild bend on both edges or through a trailing edge doubler. Agree on how to attach - not rivets along the whole tube length but top and bottom at the fittings - that is what i have on the sapphire fibreglass struct fairings - attached at the ends only
aj_richo Posted October 17, 2016 Posted October 17, 2016 at Marty_d.. I made exactly that type of fairing out of .016" 2024 to cover 32mm diameter struts for my old 95:10 buzz bucket. I put the bottom sheet on the inside of the lip to help keep it together. No issues with cracking along the trailing edge with the right bend radius and made they a huge difference in drag reduction. Biggest problem was people grabbing onto the fairings to help move the aircraft and popping the edge out of the lip as I only had minimal rivets keeping it together.
Yenn Posted October 17, 2016 Posted October 17, 2016 Another way to make a fairing is to bend up the aluminium sheet and rivet a piano hinge at the two trailing edges. The shape is quite good and the hinge pin enables you to easily remove the fairing. Solid AN 426 rivets give a very smooth surface. 1 1
eightyknots Posted October 17, 2016 Posted October 17, 2016 It's definitely worth doing. It will reduce the coefficient of drag to around half. 1
bull Posted October 17, 2016 Posted October 17, 2016 [ATTACH=full]37763[/ATTACH] [ATTACH=full]37764[/ATTACH] [ATTACH=full]37766[/ATTACH] [ATTACH=full]37767[/ATTACH]Six months of work - first photo on 6/3/15 and last photo on 7/3/15 and there are lots of photos in between Whats that single seater in the rafters planet?
bull Posted October 17, 2016 Posted October 17, 2016 The shipwreck has become a boat again yay[ATTACH=full]45693[/ATTACH] Love the single seater up in the roof , thruster?
pylon500 Posted October 17, 2016 Posted October 17, 2016 Thruster?! Nah, it's a Javelin. Another project I'm supposed to finish for a mate (he's in no hurry, got two other planes...)
bull Posted October 17, 2016 Posted October 17, 2016 Thruster?!Nah, it's a Javelin. Another project I'm supposed to finish for a mate (he's in no hurry, got two other planes...) cool I had one of them back in 95 brought it for $1000 had a 447 in it ,and was great fun chaseing the crows with ,but if the noise stopped was a real brick, straight down lol,sadly was destroyed in a cyclone, wrapped it up into the corner of the remaining t hanger at a mates strip north of Townsville.Used the engine in my jackacrichet
Marty_d Posted October 17, 2016 Posted October 17, 2016 Probably not worth the constructional difficulty - that fold on the trailing edge to create the lip you want to rivet into is a HUGE stress riser in the material and I suspect tyou will get tearing and cracking along the edge. Probably better to do what others have down and just rivet the trailing edges together with a mild bend on both edges or through a trailing edge doubler.Agree on how to attach - not rivets along the whole tube length but top and bottom at the fittings - that is what i have on the sapphire fibreglass struct fairings - attached at the ends only I can't see that the folded TE (with a 1/8" radius) in 0.016" 6061-T6 would be more prone to cracking. The TE on the fin of the 701 is exactly that type of construction. The rivet line doesn't have to be near the TE, it could be anywhere aft of the tube. Might also be an idea to form a rib top and bottom to retain the shape of the fairing. Planet, sorry, I seem to have hijacked your thread. I'll happily move this elsewhere if you like.
planet47 Posted October 18, 2016 Author Posted October 18, 2016 The other single seater in the "non paying plane" stalls is my gt400
kasper Posted October 18, 2016 Posted October 18, 2016 cool I had one of them back in 95 brought it for $1000 had a 447 in it ,and was great fun chaseing the crows with ,but if the noise stopped was a real brick, straight down lol,sadly was destroyed in a cyclone, wrapped it up into the corner of the remaining t hanger at a mates strip north of Townsville.Used the engine in my jackacrichet 447 in a Javalin - Pure luxury - the one at the Oaks at that time had a 377 ... but I have to agree when you pulled the power it did make a T85 Thruster look like a competition glider 1 1
planet47 Posted December 23, 2016 Author Posted December 23, 2016 Happy xmas to all who fly I will not be posting any more on this thread but will continue to build There is a lot more I would like to say but ............ 1
bexrbetter Posted January 2, 2017 Posted January 2, 2017 Happy xmas to all who flyI will not be posting any more on this thread but will continue to build There is a lot more I would like to say but ............ Nah don't do that, I love your build, just ask a Mod to delete all the off topic stuff and get back on track.
planet47 Posted January 2, 2017 Author Posted January 2, 2017 No bex The thread was never about the contents of hangars Or about the egos of others Many words come to mind but my anecdotal thoughts are that I have learned why there is so few women involved in things to do with aeroplanes 2
bexrbetter Posted January 2, 2017 Posted January 2, 2017 No bexThe thread was never about the contents of hangars Or about the egos of others There are build blog websites out there, possibly you could run a thread one and link interested people to it? Anyway, good luck with it otherwise. 2
FlyingVizsla Posted January 2, 2017 Posted January 2, 2017 No bexThe thread was never about the contents of hangars Or about the egos of others Ignore them Planet - I have been following your build and like what I see. Good on you for doing it and posting photos. Ignore the Egos, Thread Drifters and Knockers - just show me pics. Sue 1 3
spacesailor Posted September 25, 2018 Posted September 25, 2018 Hi from me, Please keep us informed, we (a lot of strangers) follow but don,t comment, and like a good book, will hate not to have a good ending, Would come and annoy you if I find were you creat things, from sheets of metal like you have shown us. spacesailor
pylon500 Posted September 29, 2018 Posted September 29, 2018 This thread was closed off and restarted under the title 'A Riveting Weekend' A riveting weekend
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