Out2gtcha Posted August 19, 2017 Share Posted August 19, 2017 Were the fuselage skeletons more accurate? I was thinking the tail fabric ripped off the empennage a downed WWI plane would be cool Link to comment Share on other sites More sharing options...
wunwinglow Posted August 19, 2017 Share Posted August 19, 2017 That Lighter looks impressive! Have actually touched the real one at Yeovilton.... I gather they could tow a Felixstowe on one behind a destroyer at full tilt!! That must have been exciting!! Link to comment Share on other sites More sharing options...
TonyT Posted October 13, 2018 Author Share Posted October 13, 2018 On 8/19/2017 at 9:30 PM, wunwinglow said: Those holes are to add lightness. Mostly..... Surely it's to remove weight, how on earth do you add lightness?? it also adds strength Rick Griewski 1 Link to comment Share on other sites More sharing options...
LSP_Ray Posted October 13, 2018 Share Posted October 13, 2018 Good pickup Tony! The holes do NOT add strength, though, they are simply to reduce weight. A solid panel would always be stronger however all that strength is not required to transfer stresses between tension zone and compression zone (basically shear stresses). So they cut out much of the center of the panels leaving enough material behind to do the job. Basically they are creating a truss-like structure without all the labor. Typically the lightening holes are round because stress has a tough time moving around square corners. The stress lines compress going around those corners and can reach high levels quickly. An interesting demonstration is to take a rectangle of clear plastic and cut holes of different shapes in it then place it on a projector and bend it. The stress lines show up in a rainbow of colors in a prism effect. It is quite fascinating. OK, that is your engineering lesson of the day! Gazzas and LSP_K2 2 Link to comment Share on other sites More sharing options...
Tony T Posted October 13, 2018 Share Posted October 13, 2018 6 hours ago, TonyT said: Surely it's to remove weight, how on earth do you add lightness?? "Simplify, then add lightness" Colin Chapman CBE, Founder of Lotus Cars It's added by drawing holes on the blue print. It's added by cutting or punching said holes. It's added because it's a design thought. Okay, I'll get my hat and walking stick Tony Link to comment Share on other sites More sharing options...
LSP_Ray Posted October 13, 2018 Share Posted October 13, 2018 Good line! I will have to remember that one. Lotus made some incredibly cool cars - still do. Made me think of another well known line: "God is in the details." Mies van der Rohe. He must have been a modeler. Out2gtcha 1 Link to comment Share on other sites More sharing options...
TonyT Posted October 15, 2018 Author Share Posted October 15, 2018 Or the weakest link in a chain is its strongest. D.B. Andrus 1 Link to comment Share on other sites More sharing options...
LSP_Mike Posted October 19, 2018 Share Posted October 19, 2018 To add "lightness" doesn't one add a light? alanash1963 1 Link to comment Share on other sites More sharing options...
CharmyDown Posted October 19, 2018 Share Posted October 19, 2018 14 minutes ago, LSP_Mike said: To add "lightness" doesn't one add a light? Yes, only works in the dark though. alanash1963 1 Link to comment Share on other sites More sharing options...
LSP_Mike Posted October 19, 2018 Share Posted October 19, 2018 I actually have most of those parts. I'm going to do just one as a skeleton, and maybe one as a partial. Link to comment Share on other sites More sharing options...
Bradleygolding Posted October 19, 2018 Share Posted October 19, 2018 The Lighter looks very nice, but lacks some components and parts. It looks as though it is based exactly on the one in the FAA Museum which has the same parts missing. I also understand that it will be a waterline model only now. Is that correct? Steve Link to comment Share on other sites More sharing options...
seiran01 Posted October 20, 2018 Share Posted October 20, 2018 Yes there are a number of details including winches that are planned via 3d printing or something along those lines. Plan right now is for waterline as well as a rear section for folks who just want to pose a camel on deck without the full barge. I’ll update when I eventually hear more Link to comment Share on other sites More sharing options...
DeanKB Posted October 20, 2018 Share Posted October 20, 2018 The lighter is great. The prices on the 3d printed stuff are far too rich for me. Nice stuff, but I don't see any value in spending that much - buying enough to construct a skeleton is just prohibitive. Link to comment Share on other sites More sharing options...
Bruce_Crosby Posted October 20, 2018 Share Posted October 20, 2018 (edited) I liked the Lotus reference, mainly as Lotus stands for “Lots Of Trouble, Usually Serious”! This is from the guy whose Mercedes automatic gearbox went “clunk” last night and won’t budge out of low gear! Just been talking to the chaps at Mercedes Swindon and it’s going to cost a lot, as in an arm and a leg, probably kidneys and various other biological bits too! Edited October 20, 2018 by Bruce_Crosby Additions Link to comment Share on other sites More sharing options...
Iain Posted October 20, 2018 Share Posted October 20, 2018 1 hour ago, Bruce_Crosby said: I liked the Lotus reference, mainly as Lotus stands for “Lots Of Trouble, Usually Serious”! My Elise, at 261,000 miles (420,000km) and 19 years old would disagree - as would my Esprit - which has never let me down! Chapman was an absolutely brilliant engineer - and the quotation makes huge sense when designing racing and sports cars Iain Bruce_Crosby 1 Link to comment Share on other sites More sharing options...
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