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  1. T

    Trailer Design - Resources?

    For non commercial vehicles, if it complies with the laws where you live, you are allowed to drive it anywhere in North America (and a number of other places, but that doesn't really matter to 99.999% of people). Exceptions being places where vehicles are specifically excluded by MUTCD compliant...
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    Trailer Design - Resources?

    I designed and built my own tilt deck car hauler in 2017. Took about 3 weeks, cost about 1/4 of what it would have cost to just buy a similar one, and weighs about 2/3 of what the store bought models weigh. I did this both because I wanted a cheaper, better, lighter trailer, and because I...
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    California Bans Small Off-Road Gas Engines, Including Lawnmowers and Chainsaws

    I'm gonna need to ask who, and what? As best I can tell, there's nothing remotely close to an electric ATV, side by side, or dirt bike, that has remotely close to the power of a gas one, or the runtime of a gas one. I'd gladly buy one if there was (a dirt bike that is).
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    California Bans Small Off-Road Gas Engines, Including Lawnmowers and Chainsaws

    So, did anyone figure out how to build a battery powered generator yet? What about a water pump that can run 24/7 for a week when we get bad rain? Sure am glad I don't live in california... Well, I'd just make sure I had a good one now and a good spare and not worry about it, but still...
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    Lets talk about diesels.

    The video says can't use it below -20 below 7500' and -40 between 7500 and 12500, with the winter kit. Without the limits are -5 and -10. I think air cooled diesels are maybe a non-starter, just because you lack the thermal mass to keep the engine hot while decending in cold weather. A...
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    Retired in Hopkins, MN

    I can help with a pretty large variety of automotive engines, but nothing connected to a prop.
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    Ducted fan aircraft

    Let me start with saying that I absolutely love this airplane. It truly is my "dream". I think you've picked the correct powerplant - the LS7 is an outstanding engine from any viewpoint. Making a reliable 400HP @ 5000 RPM should be no sweat, and with the dry sump it's easy to keep well...
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    Lets talk about diesels.

    the GM 4.3, 7.4 (454), 5.7/350, 240/260/300 6cyls are common marine engines, and are about 95% identical internally to their car/truck counterparts. The myth that auto engines can't handle aviation type demands is mostly that, a myth. Most diesels (excluding emissions systems) will run...
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    Ebay Today

    It did already come with a new canopy, though. https://www.ebay.com/itm/Beechcraft-Baron-no-damage/153682735711?hash=item23c834725f:g:kscAAOSwAfVdlUQm This seems like it was a really good deal, aren't these $100k+ flyable? Must cost a lot to do an annual on them. And I have no idea what you...
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    Lets talk about diesels.

    Where did you find the Skyactiv-D weight? Which generation and displacement skyactiv-d engine is it for? I still think the GM MDE will be a better route to take then this one, but the weights on both is currently unknown as far as I can tell.
  11. T

    Lithium Iron Batteries

    Just to be clear: This electronic system is INSIDE the battery. You don't need to do anything special to it. It is invisible to the user. I have killed mine dead dead twice and just jumped the car to charge it. It will not allow the user to damage the battery. You can't discharge it to...
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    Lithium Iron Batteries

    I'm not sure how commonly aware of these the aviation community is. Here's my automotive experience, in the hopes that it can help some of you on here. I'm sure most of you would do unspeakable things to take 20lbs of dead weight out of your airplane, so I thought I should share this. I put...
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    Lets talk about diesels.

    I don't think that there's any options for diesel ECU's short of reflashing OE ones. Not that that should be a problem, as long as an aftermarket flash for it exists. Or in the case of non emissions diesels, maybe nothing at all needs to be redone.
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    Lets talk about diesels.

    Anyone know anymore about flyeco? No website updates in a long time. http://www.flyeco.net/ I do wonder how they are getting 80 reliable HP out of the engine, that's double the output of the early ones. Even the "best" ones (800cc) are 53 factory HP. I'm sure they can make that amount of...
  15. T

    Lets talk about diesels.

    PMD, I appreciate it. I just don't want this to turn into a naysayer fest is all. There are maybe some light-enough options. The modern auto diesels are all aluminum and while I'm sure they're heavier than an aircooled gas engine, they should be light enough. Even adding 100lbs of engine...
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    Building more crash-worthy composite planes and cockpits

    That is true. I survived a high-G crash (not sure on the math here... but 70MPH to 0 in about 3 feet in a rally car and hit the harness hard enough to turn my chest and shoulders purple. I had a WRC style helmet and a HANS device and my neck wasn't even sore after. Wearing a helmet and...
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    Lets talk about diesels.

    There aren't any recent diesel-specific threads, and I've got diesels on my brain right now. What I don't want in here, is "diesels are a stupid idea". If you think that's the case, please just move along. What I would like to discuss is: Available diesels in N.A. (or mail order from...
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    Certified engine crankshaft repair

    Grinding a crank without removing it from a motor might work fine in something with BIG clearances... but anything modern with 1-3 thou of oil clearance and you can kiss the other bearings goodbye in a hurry. No idea how you'd spin it enough times without pumping oil through the rest and...
  19. T

    A proper UAV

    I see you went with B-36 landing gear:
  20. T

    100LL and O2 sensors; your thoughts

    I know you said you don't want experience with race engines, but that's 95% of the experience I have, and most of those are "street" engines that just get raced and see leaded fuel as a consequence of that: with how cheap widebands are now you can just change them annually if they last that...
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