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  1. A

    Craig Cato's New Propellor Gave Us Insane Results! | Whisper Sling Prop Test

    If the folks at Sling follow HBA, I'm sure at some point True A to B comparison via flight data and DB readings done with a true engineering test mindset will have to be done not only for the data, but it would be a bit of marketing as well. The video was their enthusiasm for lets go try this...
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    Craig Cato's New Propellor Gave Us Insane Results! | Whisper Sling Prop Test

    If you look at the Al-Bowers videos & how he explains what Geese do in fight & how their vortices are 20% inboard of the tip , & how Pelicans droop their tips like his blade, one might assume things have been inspired if not borrowed.
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    Sun ‘n Fun 2024: Piper To Test DeltaHawk Diesels In Seminoles

    Yes I did, as well as the RV-14 and Bearhawk Kit Options.
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    Sun ‘n Fun 2024: Piper To Test DeltaHawk Diesels In Seminoles

    The numbers might not make a case for the STC, unless MOSAIC drops the STC process cost dramatically, however the 350hp V6 version would have a great home in the venerable RC-3 Seabee.
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    Airfoil selection for an aircraft out there?

    WARPilot, Immic that is the Ribblet based on 64a315.Will you keep 15% all the way to the tip like the Piper Comanche did or increase it like the BD-5 did and go to 18%. Also did you consider going to a 4 camber by the tip. Thanks in Advance.
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    DA11?

    VB, The DA-5 drawings are more interesting than the DA-2. FWIW my years in design/drafting IMHO the design intent of the DA-2 prints are good. Roger that on the V-tail on the 5, almost not enough product definition. Tempted to just scale the drawings and Kentucky Windage it to see if I can get...
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    Modified Corby Starlet

    I'm starting to question everything lately, NOTHING is as it seems. Was it a Starlet base, is their KR in this, or what else?... It's experimental, if it has a lot of DNA at that point it's a "My Special".
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    Resurrecting the Dyna-Cam

    Immic that was the same time period when Stuart Miller had bought Piper and was going in a number of directions (R & D / new products) that required money, including the "Swift Fury". A historian or someone who may have been working their during that time frame can perhaps shed some light on...
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    Kohler powered Q-1

    Did anyone catch the cryogenics...
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    Rethinking Propellers?

    My late friend Pat Panzera told me what he observed when he went up to do a story on the Bipe for Contact! Magazine. Pat was at the other end of the runway and it was taking off towards him and he did not hear anything until it got abeam of him and he heard the exhaust. With that said that...
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    50 HP 5 CYLINDER RADIAL WITH PREDATOR HEAD/CYLINDERS

    The stuff talked about or seen that we never know about with the big three would make an interesting series on TV. I've seen stuff by accident, just one example: Like the 2 door Taurus (The Catfish era) in SHO trim in the back of a parking lot of a Tier Supplier as I picked up a buddy who was...
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    Flying Race 6 Lancair Legacy

    👏👏👏😎👍....
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    Three cylinder VW

    At Sun and Fun Ultralight area, either 93' or 94' immic their was a gent with just this, 2 on one side, one on the other. I'm not sure I have a picture. He claimed it ran smooth, and I'm not sure if he ran it. Vaguely remember him possibly running it, im not sure if it was a 2 x 4 or a flywheel...
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    E-Racer Blended Winglet and Interference Drag CFD Analysis

    Thanks! I'll dig into your work indepth later!
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    E-Racer Blended Winglet and Interference Drag CFD Analysis

    I'd love to see more, It looks like a Delta config or is it traditional? Thx in Advance.
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    Miller TM-5

    I remember when the article came out in Sport Aviation and my impression was what a well thought out design via goals and objectives. I wonder it it was victim of the fast glass trends that were in full swing when in made it debut. It's a shame it never caught on.
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    A 55% SR-71 Blackbird under construction!

    And then their is the story about the gold plated externals, the missing gold and the guy who was working on them with the "DA" slicked back haircut. Told to me during GD & T Training at "The Eagle"...
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    model A engine use.

    Yes, and I wonder what an Aluminum casted version of that block would weigh, my heart be still....
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    Trust Me I'm an "Engineer"

    And, let me guess, Propulsion will blame it on Structures.....🤣🤣😎👍
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    Seabee and the Paradigm Plane

    As a Kit that: Is esentially a Spencer Air-Car out of Alumium, Seabee low parts count methodology, Ribbett Airfoil to update from the 4415. Av Cherry Rivets for Assembly, 6061 if need be. possible carbon fiber hull section, it might make things a great deal easier. and yes the Robinson LS...
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