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  1. A

    wood vs aluminum leading edges on a Christavia MK1

    I am considering purchasing a Christavia project. Christavia is a traditional rag and tube fuselage with a strut braced wood and fabric wing. Workmanship is superb. But one thing I discovered is it has wood leading edges on the wings. Plans call for aluminum. I worry about this is a major plans...
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    Christavia MK1

    Is this still available?
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    Christavia MK1

    Hello, is this still available?
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    Design advice for amphibian

    Thanks for the comments guys. I guess If I was smart I would just go with what I think is the best set-up. A Rans S7-S on Zenair 1450 amphibs. Many years ago I scratch built from plans a Zenith CH-701. But I sold it 12 years later. Don't get me wrong there is nothing wrong with the Searey but...
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    Design advice for amphibian

    Thanks for the tips. That is what I would want. I get advice and direction from the engineer so I can do most of the design. Keeping the cost down. Intentions would be to be proficient in Solidworks. Those drawings can be communicated to an engineer for modification and analysis. I guess. I...
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    Design advice for amphibian

    I would use proven methods of construction. Nothing new or radical.
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    Design advice for amphibian

    I would love to do that but more than likely it would just be for my personal satisfaction. I think they are all missing the mark. Searey comes close but it is too ultralightish to me. I am sure it is a safe and well proven aircraft. Just not my personal choice.
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    Design advice for amphibian

    You are correct, I meant semi-monocoque. Basically an all aluminum aircraft. I agree about the Icon, it is just pretty and all hype. They won't make it.
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    Design advice for amphibian

    I am considering designing my own aluminum stressed skin (monocoque) amphibious LSA aircraft using an existing metal wing such as the Zenith CH750 Cruzer wing. How do I find a QUALIFIED engineer to help in this endeavor? I would design using some basic parameters, design knowledge, and eyeball...
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    Can a Volmer Sportsman amphibian be a LSA?

    Thanks guys, that is what I also thought. And I think you are right, I can use a Rotax or a UL engine and save a good 50 lbs and have more HP.
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    Can a Volmer Sportsman amphibian be a LSA?

    The Volmer Sportsman amphibian was designed for a gross weight of 1500 lbs. But if I am the manufacturer can I legally certify and license it at 1440 and fly it legally in the LSA category? I am not trying to be sneaky or anything. Just wondering if it is ok to do. Although I guess it would then...
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    engine stored 60 years in cosmoline!

    This has been an extremely helpful thread. I appreciate the info. Sounds like in competent hands most of the concerns can be investigated. I already talked to the mechanic and I will be sending him all the documents of which I took pictures. He will review and advise. Then if I go further he...
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    engine stored 60 years in cosmoline!

    Can a proper inspection find these potential problems? I don't want to be flying under assumptions. I want facts so I can be comfortable flying with my kids in the aircraft. And hey, me too!
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    engine stored 60 years in cosmoline!

    Great comment. The engine mount was replaced at the same time. But anyway, the records have the change out documented and signed off by a A&P.
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    engine stored 60 years in cosmoline!

    Thanks much for the info. Great comments about the accessories, ignition. I will be sure to find out where they came from and condition. You said: "the fact it was o'hauled or even new when stored is irrelevant based on current manufacturer guidelines.". Can you explain more what this means...
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    engine stored 60 years in cosmoline!

    Thanks for the comments. Boy, my guess was that you guys would say stay away and that this is a stupid thing to consider. I guess I just make sure the mechanic is aware of it and go through the normal prepurchase inspection process.
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    engine stored 60 years in cosmoline!

    I appreciate that good advice and am learning alot about how to check out these old aircraft. But I would like to keep on the topic of the engine and it's long term storage.
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    engine stored 60 years in cosmoline!

    This is correct except I made an error in that the engine was prepped and put in storage by the Army in 1945 not 1965. So 70 years! It has what looks like a good document noting the prep. It was also overhauled just before the long term storage. The aircraft has been flown regularly since 1985...
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    engine stored 60 years in cosmoline!

    I have been considering an aircraft with an engine that was stored in Cosmoline since 1965. It was installed on the aircraft and it now only has 9 hours on it. I flew with the owner. The engine was cold and he hand propped it and it started on the first strongarm. Ran smooth. It is a C-65 on an...
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