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  1. A

    Debate about Mark Langford's 3rd crank failure

    Jay - absolutely. We have to lead, not lag. Allan
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    Debate about Mark Langford's 3rd crank failure

    Dan, you are right. Carbs used to ice up in automobiles. They may still do so in USA, but it is many years since I had a carb ice up in UK or Europe, even in the mountains in central France; summer or very cold winter ( summer is worse, of course. ) My little Star-Lite has a Bing...
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    Debate about Mark Langford's 3rd crank failure

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    Debate about Mark Langford's 3rd crank failure

    Mark Langford's beautiful photos and writing straight out of his head are really fascinating, and very instructive. Thank you, Mark. I should have said so at the outset. " From 1964 on the displacement was 164 cubic inches (2700 cc) but the 1964 engines have smaller head gaskets making them...
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    Debate about Mark Langford's 3rd crank failure

    Dan, re. my last answer - that one can still obtain Continental is news to me. I will check up where ! In UK, the buzz is one can't get them. Allan
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    Debate about Mark Langford's 3rd crank failure

    Dan, the thinking on a venturi heater is that that is the spot where carb ice forms first - so instead of heating the air, you heat the surface. In Uk it has been found to work. Allan
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    Debate about Mark Langford's 3rd crank failure

    One other thing - if you replace a crankshaft from an automobile or aero engine with another, the new one has to be made in exactly the same way from exactly the same material. A drop forging, made specifically for that item. Then the steel grain flows around the form. Otherwise, your new...
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    Debate about Mark Langford's 3rd crank failure

    Regarding using an automobile engine for another application, there are certain things an engineering works would do:- 1. Analyse the work that the engine has been doing successfully, without failure. 2. Try to do an accurate math model of the work the engine is intended to do in its new...
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    turbocharged apex yamaha 150hp conversion

    This is a late addirion to this thread - but this sounds a good idea. I have a 2003 Yamjaha 1300 FJR. I bought it in the summer with 19,000 miles on the odometer. It now has 22,000 miles. The BHP is a fraction under 150 ( 148 ). It is not turbo charged, but it does have direct fuel...
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    Hello

    Hi, Kwasiu. ( In Europe, you have to get EASA clearance to be legal - even a Cri-Cri is heavy to drop on someone's head. But you know that ... ) Have you checked out the specification for the Cri-Cri ? Duralumin glued to plastic foam, stronger and lighter than GRP, with the high modulus...
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    OIL INJECTION VS PREMIX

    I have a Rotax 447. It has been unused, in an oil bath, for some time owing to front wheel detaching and destroying the front of my StarLite. That has given me plenty of time to research the problems people face with these engines. Here in UK, we have had internal engine failures on low revs...
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    Rotax 503, what fuel to use?

    This is a very good exchange of information. I am late coming in on it, but it raises some important points why 2 stroke engines have failed. Firstly, running 2 stroke engines on Avgas 100LL is not thought to be a good ides in UK because the lead builds up deposits which remain in the engine -...
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    BMW R1200 motorcycle engine

    re. BMW R1200 engine photos. I note these, ( and the photos of the same type of engine engine installed in a Cherry in the same way on the EAA site, with the muffler box inside the cowl. ) The conversion works in Germany installs the exhaust at the front by moving the left cylinder to the...
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    A home built single rotor wankel engine with aluminum housings

    I had a 1986 Mazda RX7 sports car, beautiful. I put 85,000 miles on it at between 19 - 22 mpg ( imperial gallons ) = 16 - 18 mpg ( US gallons. ) It ran like silk, almost silent. I obeyed the makers instructions ( " When all else fails, read the instructions " ) Because they run so hot - it...
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    Do you think most accidents/incidents happen mainly by pilot error?

    Yes. Please see LAA Magazine August 2012 " How to avoid stalls & spins " by David Joyce. Excellent. Allan McDowall
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    Regulations - Aircraft Certification

    Good. It saves a lot of pain to be withing the Regs,
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    rudder design

    Aircar - that is well put. For myself, I think any possibility of leaving out aerodynamic balance, mass balance, maths or correction of interrupted flow-lines is a risk. One can get away with it, but it is a risk which could have been avoided. Like Mr. Pitts, say who was somewhat of a genius...
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    rudder design

    Today is 27 Nov 2012 - I am a new member. I have a Star-Lite. In UK we have LAA, light aircraft association ( was PFA popular flying association) Here, flying a plane without LAA approval for design and testing by approved test pilots is illegal, because people can, and do, hurt themselves. re...
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