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I wonder if this discussion has popped up anywhere else before... well here goes; I have a plan to create a fully working Concorde droop nose in 1/72 - simple enough with the Heller/Airfix/Revell mechanism bulked up and a high torque motor with cog fitted? Well, no, not really. The (lets just call it Heller) mechanism is wrong in that it actuates both the visor and nose at the same time as one linked unit - this is both incorrect, fragile, sloppy in movement and the visor ends up sitting in the wrong place. Oh and the whole nose / cockpit is wrong too So, utilizing 3D printing and good old brass tube, I aim to make my own. I've come across various drawings on the interweb showing the mechanism in all it's complicated Anglo - French glory. Any input here from Concorde buffs will be greatly appreciated as this is my primary design using the available references as faithfully as possible to make it work. The point of power for the visor is different though, in that I have chosen a small low torque motor in the nose cone with a threaded shaft. A large weight attached to the CofG of the solid visor bottom should keep it all balanced, which leads to..... For the actual nose cone movement, a large high torque motor sandwiched under the flightdeck works on a half cog moulded into the new 3D printed nose cone. The frame for the new visor will also be 3D printed with all hinges incorporated; It is planned to actually make the aircraft capable of moving along a short taxiway incorporated into a section of my model railway using a home built version of the faller car system. I don't know wether i'll bother trying to motorize the flying surfaces but I do plan to fit a digital sound emulator and lights. If it looks viable then i'll start a WIP and the aircraft will either be AC or AF, the only two I saw fly Cheers, WV908