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Thread: New 2 person Challenger build.

  1. #1
    New Member
    Join Date
    Oct 2018
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    30

    New 2 person Challenger build.

    Hello All,
    Starting a new build for my neighbor. He rode in my mini, got out and said how much and how long for a 2 place ?. He’s a Dr. and can afford questions like that.
    Well, I traded him my Challenger II airplane for his Bush Trike ( ultralight). Now will cut the tail, take off the wings and basically bolt the main cab and power plant (rotax582)into a 5x10 1/8” hull. Tig welding the hull together now.
    5052, .100” 5x10 aluminum, with 1”, 1/8” square tubing braces. Main hull will be flat bottom with a little bit of a wedge in the front transitioning to straight and flat on the back half of the hull. 18” sides with a little bit of a softening chine towards the rear, but mainly this is being designed as a carving boat, with a little bit of slide, when needed . Projected weight of 500 lbs all up. With seating for 2 and lots of storage for gear.
    The Challenger airframe will be mostly intact with very little changes.. twill be taking a few things out, off. For the most part it’s a bolt in and go operation.heater, removable windows, intercoms, seatbelts, electrical, gauges, etc....is already done !
    I’m hoping to get it done in a month. I’m 1 week in and will be posting pics soon!
    Last edited by Jssflyer; 04-15-2019 at 11:42 AM.

  2. #2
    Super Moderator Corky's Avatar
    Join Date
    Jul 2014
    Location
    Susquehanna river, Dauphin, Pa
    Posts
    1,268

    Re: New 2 person Challenger build.

    Nice, looking forward to the build...

    Aluminum .120 14' X 76" hull
    Teledyne 4a084-4 engine
    Circle S 1.69:1 reduction
    67" Whirlwind "Razor X" prop



  3. #3
    New Member
    Join Date
    Oct 2018
    Posts
    30

    Re: New 2 person Challenger build.

    A change of plans...not using the Challenger frame. Just the engine and instruments. Rotax 582.
    The build is going good and should be done in a few weeks. Going to turn out like a cross between a mini jet boat and a traditional airboat. Will have bench seating for a couple kids as well as as the primary driver seat.heres a couple pics of the hull. Name:  14EC7FDB-7D8A-4DA4-BE39-4973028B22B9.jpg
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Size:  19.5 KBName:  CF5C2EA6-12CB-45B5-AAC9-7F8BEEB8C961.jpg
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  4. #4
    New Member
    Join Date
    Oct 2018
    Posts
    30

    Re: New 2 person Challenger build.

    Update on the mini.. going good. Getting better at Tig welding, kinda. Am now building the top half, and drilling for rivets on the top thin stuff. Installing the seat, cockpit, gauge plate today. Couple pics.Name:  AAB17E2E-E74F-435D-A670-D368429C2A79.jpg
Views: 56
Size:  19.6 KBName:  775285C8-3CA2-4A33-B616-6CA7519B961B.jpg
Views: 56
Size:  19.8 KB

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