Recent content by Will Aldridge

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  1. Will Aldridge

    Simple six-pack replacement. Is there such a thing?

    Garmin G5. https://www.aircraftspruce.com/catalog/avpages/garmin-g5-cert.php?gclid=CjwKCAjwg6b0BRBMEiwANd1_SJBHpY8XuDs_ivJvo-BGH1pDaajyG2UVXjmm9Kky-bdK7GOByDUSXBoCEQIQAvD_BwE One of the pricier options and no navigation but it fits in a standard size instrument hole and replaces all of the 6...
  2. Will Aldridge

    Making a firewall

    This is only a half remembered thing I read but isn't galvanized real nasty when it burns?
  3. Will Aldridge

    What design fits the bill? aka does my dream plane exist?

    Kitfox 4 is close, stall speed is a little higher than you're asking for and Tent Palmer has made them popular enough they're no longer cheap. But some version of the Avid Flyer might fit the bill. Nolonger in production but there are unfinished kits if you look. Can probably get one for a...
  4. Will Aldridge

    Reducing drag on a kitfox

    I put the engine as close to the firewall as I could, one of the biggest issues is that there's a lot more weight further forward on the BMW than the rotax. The starter for example is aft of the firewall on the rotax, on the BMW it's hanging on the bell housing. The PSRU is significantly heavier...
  5. Will Aldridge

    Reducing drag on a kitfox

    Well that's interesting especially since it's using the same size tires I'm going to be using. I simply don't have the useful load(or budget) to go with larger tires, so that wheel fairing is interesting. Any idea if it reduces drag any appreciable amount? Although I'm making many...
  6. Will Aldridge

    Reducing drag on a kitfox

    The instrument panel is fairly spartan. Upper left is a MGL BLAZE engine monitor, top center is a Garmin G5(came with the plane) right is an iPad mini for navigation/ music and bottom center is a Becker comm that I bought for my other project. As you can see the instrument panel itself won't be...
  7. Will Aldridge

    Reducing drag on a kitfox

    Just came up with another reason for the "boat hull" fairing over the cabane. I was working on installing the new seat today and sitting in it testing it out, and I was resting my heels on the cross tube just aft of where the rudder pedals mount and realized that making a trough that hangs down...
  8. Will Aldridge

    Reducing drag on a kitfox

    My plane weighed 468 when I bought it. The BMW engine id adding 30 lbs on the nose and I'm going to have to add at least 15 lbs on the tail. I'm covering the plane to a single seater and doing everything I can to shave weight off. The extra seat belt attach brackets have been cut out as well as...
  9. Will Aldridge

    Reducing drag on a kitfox

    Ok how about Mike Arnold and by extension Sigurd Hoerner? about 40:00 minutes in he talks about divergent nozels. I don't think it's a stretch at all to call a cabane a very aerodynamically ugly nozzle. There's multiple very draggy intersections and flat plates perpendicular to the airflow...
  10. Will Aldridge

    Reducing drag on a kitfox

    This is basically what I'm planning on doing for the cabane.
  11. Will Aldridge

    Reducing drag on a kitfox

    The kitfox models 1-3 have a Vne of 100 mph. Ive talked with a gentleman who has a model 1 with a rotax 670 (92 hp) and he says he can exceed 100 mph in level flight if he wanted to. So yeah I could gain a few mph on the top end but that's kind of futile in my view. The aircraft can't...
  12. Will Aldridge

    Reducing drag on a kitfox

    Moving the rudder pedals forward is already in progress along with new brake pedals that improve the mechanical advantage when applying pressure to the master cylinders. Stock brake pedals only have about a 2:1 mechanical advantage, and the previous owner said they would only hold the plane to...
  13. Will Aldridge

    Reducing drag on a kitfox

    This has been niggling at my mind ever since I read it, wondering why it wouldn't have any effect. Then I remembered this image: And I'm wondering if even though the fairings on the die spring were probably set to 0 AoA at cruise, the prop wash was actually causing them not to be at the best...
  14. Will Aldridge

    Cindy the DragonFox (Highly Modified Kitfox model 1)

    SPG-4 gearbox with oil level window below prop flange Close up of engine, the throttle bodies are mounted upside down compared to the motorcycle mounting. Among other things it makes throttle cable routing easier. Ground away a little of the bell housing. Thought about cutting that nub off...
  15. Will Aldridge

    Cindy the DragonFox (Highly Modified Kitfox model 1)

    BMW R1200 DETAILS. As we have heard perhaps thousands of times on this forum, auto conversions are fraught with peril. The 2 biggest issues seem to be the PSRU and if it's a more modern engine, the associated wiring harness and computer. Obviously a custom motor mount has to be built and every...
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