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  1. J

    Glued vs. Thermobonded

    How can you tell if an inflatable boat was glued versus thermo bonded / welded?
  2. J

    Wakeboard behind airfloor with 20hp?

    No Title "Waaaay back when...." Here an interesting water skiing study from the late 50's the results of which are presented in a form to help boat salesmen of the time better conduct the sales talk with the customer -- not air floor data strictly speaking, but some 10 - 30 HP data nonetheless...
  3. J

    14hp + mc366

    No Title Looping the headphone audio output back into the microphone input with a 1/8" stereo patch cord I had laying around and using Soundcard Scope for the spectrum analysis, your motor's fundamental audio frequency was 130.32 Hz. For a 2 cylinder 2-stroke there are 2 combustion events...
  4. J

    I think I went mod crazy

    Re: I think I went mod crazy yeah, the 150 psi is overkill for sure, I'm more interested in the 150 liters / min ( ~ 5.2 cu ft / min ) a bit low for 1st stage of inflation, but for topping off the main tubes to 3.6 psi and the keel to 5.1 psi, it would be perfect. Should work fine for...
  5. J

    launching wheels

    Re: launching wheels 'had the camera out today taking photos of under used stuffs to put on craigslist to get my spring purge underway, 'figured I would snap a shot of how I use the shock / bungee cord to retain the PTO Pins to one another and hopefully provide more clarity
  6. J

    I think I went mod crazy

    Re: I think I went mod crazy I have not seen anything like this offered in the USA for ~$50 inc s/h, ( I seem to have seen something similar at Northern Tools for over $120 ) but if I did, I would probably give it a try for topping off my SIB and inflating my SUP BBT 12V 4x4 4WD 150L MIN...
  7. J

    launching wheels

    Re: launching wheels HFT, if close by is the way to go, the 20 piece assortment can generally be had on sale or via coupon for ~$6. Otherwise they are a $2 or $3 affair each. 20 Piece PTO Pin Assortment Get some bungee cord of about the same diameter as that used for the tarp tie down loops...
  8. J

    6 HP Johnson

    Re: 6 HP Johnson Some data points for you. I did a first run / season opening shake down run for my 1968 Evinrude 6 HP Fisherman ( essentially the same motor as the Johnson) I picked up last year and never got a chance to run it. On a slightly wider 12 or 13 rental. With force 3 - 4 winds...
  9. J

    Backup motor

    Re: Backup motor That is a sweet deal on that 2.5 HP Nissan, congrats. When I can launch down wind of where I am headed. I bring my Wind Paddle Cruiser with me
  10. J

    launching wheels

    Re: launching wheels For sealing through holes in the transom: Lexel works good, that is what I used. It is relatively easy to remove if you ever decide to disassemble, should last at least 5 or 10 years, probably will exceed the life of the vinyl. if you use 3M 5200, it will be considered...
  11. J

    On the fence 11 or 12 foot?

    Re: On the fence 11 or 12 foot? Thank you for the greeting. Salut! I have learn a ton of stuff off of the iBoats forums and if possible I would like to make productive input. With an old 1963 Evinrude Fastwin 18 HP ( looks like something George Jetson would own ) that 365 class SIB makes...
  12. J

    launching wheels

    Re: launching wheels here is a sketch with the longer duallie strut concept still looks more like the $75 ~$80 product but you have duallies and there is no point in rotating the strut for stowage as the wheels need to clear the transom and there an extra inch or so in clearance for the...
  13. J

    launching wheels

    Re: launching wheels the concept drawing .gif got all shrunken so I .jpg'd it and attached it to this follow on post
  14. J

    launching wheels

    Re: launching wheels I built up a set of Launch Wheels about a year ago, and if it were not for having about 1/2 the stuff I needed, it may have been just as well to order a set. And to top it off, depending upon how much you like projects, there is more than enough fabrication work to...
  15. J

    Looking for Old Halkey-Roberts Valve 069-BV

    Re: Looking for Old Halkey-Roberts Valve 069-BV Sea Rider, thanks for being interested I picked up a high volume / high pressure (2 and some psi, go figure) 12 volt dc pump the thing they call the Halkey-Roberts inflation adapter works with the valve on the Sevylor iSUP once I trimmed the...
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