Zenith Aircraft Builders and Flyers
Online Community of Zenith Builders and Flyers
Fiber glass Undercarriage mods
I have a Zodiac 601xl and looking to clean up the undercarriage where the main landing gear attaches to the fuselage and put on a nose strut fairing. (Already have a wheel fairing).Any one offering the above?
I put on wing fairings and it gave me an extra 7 knots and lowered my stall speed. Cleaned up the area around the tail another 4 knots. Put in 9.5 to 1 Lycon pistons and rings on my Continental 0-200 engine. Went from 95 bhp to 118 bhp. Trying to get to IAS of 120 knots. Any help would help. Thanks in advance.
Bob
Replies to This Discussion
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Permalink Reply by Gary Welch on
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You got 7 knots from wing fairings alone? That's a huge improvement.
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Permalink Reply by Douglas Binder on
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Can you show a photo of your wing fairings?
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Permalink Reply by Robert Schneck on
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I would like to send them to you but can’t figure it out, on the forum. I went into my pictures, tried to copy them and paste. Any help would be grateful.
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Permalink Reply by David Krakowsky on
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I would also like to clean up the bottom of my 601xlb, so would like to see your results
Dave
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I wish I was farther along with my project. I bought it as a fairly complete XL and I've been installing the B mods. In a previous hobby I studied aero drag to try to make an old moped go faster. My suspicion is that you should focus on the space behind a draggy part such as the landing gear. I think it is not so much of pushing it through the air, rather, it is pulling it through the air. Attaching the air behind the gear probably has the biggest benefit. I think adding streamlining to the back side of the gear and asymmetrical streamlining under the fuselage should be easy to test with 2" foam from Lowes and some tape. Shoot for a 3:1 ratio of length to width.
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Doug thank you for your information.I will give it a try.
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Doug and David send me your mobile # and I will text you some pictures of the wing fairings.
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I have wing fairings
I was interested in cleaning up the bottom, the under carriage.
Dave
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This is what I will use on my round Kitfox wing struts. For the 601XL, I'll hot wire single piece foam that will bond to the rear of the landing gear. My cell# is 607 229 2218
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Thanks for the picture. Did you make that?
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Yes. I have a CNC router that I attached a hot wire bow to. I can look into cutting out a bunch of these. They are around 24" long so you would stack them.
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