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  1. C

    DIY AHRS HUD

    Coming from a Navy background, the only aircraft I've flown with a real HUD was the T-45 Goshawk throughout flight training. From there I went on to learn and continue to fly the E-2C. I can tell you from first hand experience how much of a DRASTIC difference it makes when all of your pertinent...
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    DIY AHRS HUD

    Hey guys! I was paging through the forums and had what could be an awesome idea (I'm sure some of you have thought of it already). I'm by no means a aerospace engineer nor a computer scientist, but I was trying to figure out how hard it would be to take a standalone AHRS system like the iLevil 3...
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    Aerodynamics: Twin vs Single Engine Performance

    Thank you very much for your help. So what is the 'Estimated flying speed' on the calculator trying to tell me in this instance? I've also found similar calculators online and with excel and they too have a very similar results?
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    Aerodynamics: Twin vs Single Engine Performance

    Good Evening, First post here, but a long time follower. I've been designing a light experimental twin engine based off of the CriCri design, but I've run into a fairly (what I hope to be basic) problem of simple aerodynamics. I've used a simple Static Thrust Calculator (1), but keep coming up...
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    Direct Drive Rotax 582

    So I'm still not sure if the 582 is able to be a direct drive system? Any insight would help!
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    Ultralight wheels

    It sure is. I'm learning a ton of stuff along the way right now and it's all just an ever-evolving concept at the moment. I've decided to stray away from the prop for now (although it would probably be a better, and definitely a cheaper option) in favor of twin JetBeetle H150 for the project...
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    Ultralight wheels

    Good evening, I'm designing a small personal ultralight and I'm wondering what size wheels are usually run. What actually interest is what the smallest possible wheels are for a lightweight project like this. I'm designing a retractable wheel setup with very limited space. The aircraft would be...
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    Twin engine homebuilt with a smaller prop

    Hey, first post but I've been reading the forms for months! I've got a preliminary design for a small ultralight. I'm interested however in building a twin engine aircraft with smaller (30") propellers instead of one larger 55-65" propeller. I'm very early in the design phase and haven't yet...
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