Homebee Posted August 30, 2021 Share Posted August 30, 2021 (edited) ABK Models is to release a 1/72nd Heinkel Lerche II "Entwurf C" kit - ref. 72003 Source: https://www.abkmodels.cz/Heinkel-Lerche-II-Entwurf-C-1-72-d34.htm 3D renders V.P. Edited December 24, 2022 by Homebee 1 Link to comment Share on other sites More sharing options...
Space Ranger Posted August 30, 2021 Share Posted August 30, 2021 😱 Link to comment Share on other sites More sharing options...
TEXANTOMCAT Posted August 30, 2021 Share Posted August 30, 2021 What the actual whizz biscuit is that! 😯 Link to comment Share on other sites More sharing options...
oggy4u Posted August 30, 2021 Share Posted August 30, 2021 Paper Luft 46 Project. A really cool design . Link to comment Share on other sites More sharing options...
alt-92 Posted August 30, 2021 Share Posted August 30, 2021 I hope they change the rotors. Link to comment Share on other sites More sharing options...
John Thompson Posted August 30, 2021 Share Posted August 30, 2021 Well, the date on the cocktail napkin is 25.2.45, but seriously? I'd be inclined to call it maybe Luft '50, after a lot of development work. The ol' crack pipe must have been glowing brightly when they brainstormed this one. John 3 Link to comment Share on other sites More sharing options...
ho590hm Posted August 30, 2021 Share Posted August 30, 2021 Love the subject. I presume this is resin, so that as soon as I buy one an injection moulded kit will appear. Concur with alt-92 on the rotors - the napkin seems to show contra-rotating blades (which fits the laws of physics) but the CAD shows both going the same way. Better than the Italeri C-27J, where both propellers rotate the wrong way. Apologies for OT gripe. H Link to comment Share on other sites More sharing options...
12by12 Posted August 30, 2021 Share Posted August 30, 2021 Quote Better than the Italeri C-27J, where both propellers rotate the wrong way. So it flies backwards, right? Link to comment Share on other sites More sharing options...
ho590hm Posted August 31, 2021 Share Posted August 31, 2021 Wrong. The distinctive curved blades curve the wrong way when viewed from the front, so you would get all sorts of aerodynamic turbulence from swept forward blades. Link to comment Share on other sites More sharing options...
JWM Posted August 31, 2021 Share Posted August 31, 2021 For sure the props were doubled to null the rotation torque on whole machine, but it will happened only when they have opposite pitch, not the same! It is nonsense to have them rotating in the same direction. The whole model is a paper project of maybe Luftwaffe not 1946 but 1951, but at least please keep the physics in mind while designing it... 3 Link to comment Share on other sites More sharing options...
ho590hm Posted September 1, 2021 Share Posted September 1, 2021 I am glad JWM agrees. But it does lead off-topic to the concept of a contra-rotating Triebflugel......to maintain aerodynamic symmetry with those twisted wings in level flight as well as balance the torque in rotating mode? Link to comment Share on other sites More sharing options...
JWM Posted September 1, 2021 Share Posted September 1, 2021 As I remember the "Triebflugel" had small jet engines on the ends of rotor, so no (or very small due to friction only) torque on fuselage was produces as it was kind of free rotation around fuselage. Here is different story with piston engine driving props. The history shown no future for this design, anyway... Regards J-W Link to comment Share on other sites More sharing options...
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