U V inhibitor finish ?

Discussion in 'Wooden Boat Building and Restoration' started by Doodler 2, Jan 20, 2018.

  1. Doodler 2
    Joined: Jan 2018
    Posts: 18
    Likes: 0, Points: 1
    Location: Oregon USA

    Doodler 2 Junior Member

    The only reference point I have is around 25 mph on a ski, and around 50 in a flatbottom.

    80 at the end of a short straight? That's fast.

    I have often thought that the illusion of speed is as powerful as real speed.
    Example: 30 or 40 downhill on a bicycle can seem very fast. 70 on a big motor bike in freeway traffic can seem slow.

    Even in a car, 45 down a narrow wooded road can seem fast, 80, back on the freeway, with 3 or 4 lanes of traffic doing the same,
    seems like sitting still, parked in motion.

    Don't these boats have the driver kneeling or prone, face near the water?
    So there is the "illusion" of great speed combined with genuine speed also?

    My adrenaline is flowing just thinking about it.

    kentr
     
  2. Angélique
    Joined: Feb 2009
    Posts: 2,996
    Likes: 310, Points: 83, Legacy Rep: 1632
    Location: Belgium ⇄ The Netherlands

    Angélique aka Angel (only by name)

    Here's the whole book for info, just in case you ever bump into another species...

    PDF - Chudnoff, Martin. 1984. Tropical Timbers of the World. USDA Forest Service. Ag. Handbook No. 607.

    For myself, on a Windows machine, I use the keys " Ctrl " and " f " simultaneously to find a species in the book's PDF, but give this some time as a lot of computers need a few seconds to search through the whole book.

    For example Purpleheart is page 124 of the book, and page 130 of 470 of the book's PDF.

    Another example is Angélique which is page 71 of the book, and page 77 of 470 of the book's PDF, and I would prefer it below the waterline rather than Purpleheart.

    - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

    [​IMG]Purpleheart - - (PDF)

    ‘‘ Durability: Heartwood is rated as highly durable in resistance to attack by decay fungi; very resistant to dry-wood termites; but little resistance to marine borers.

    Preservation: Heartwood is reported to be extremely resistant to impregnation with preservative oils; sapwood is permeable.

    Uses: Turnery, marquetry, cabinets, fine furniture, parquet flooring, tool handles, heavy construction, shipbuilding, many specialty items (billiard cue butts, chemical vats, carving). ’’

    - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

    [​IMG]Angélique - - (PDF)

    ‘‘ Durability: Heartwood is resistant to very resistant to attack by decay fungi but is somewhat susceptible to dry-wood termites. The wood is resistant to attack by marine borers.

    Preservation: No data available but is reported as probably extremely resistant to preservative treatment.

    Uses: Marine construction and general heavy construction, railroad crossties, industrial flooring, ship decking, planking, and framing, piling, parquet blocks and strips. ’’

    - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

    The above individual book pages I've grabbed from a USDA-Forest-Service-Products-Laboratory-background index with only scientific names mentioned and some other things, since I didn't saw the individual book pages properly listed anywhere else on one of their below linked websites . . .

     
    Last edited: Jan 28, 2018
  3. Yellowjacket
    Joined: May 2009
    Posts: 571
    Likes: 77, Points: 28, Legacy Rep: 447
    Location: Landlocked...

    Yellowjacket Senior Member

    These boats are referred to as "kneelers", you kneel on a pad so you can shift your weight forward for cornering and aft on the straights. The class minimum weight is 515 pounds WITH driver, so the boat with motor weighs about 300 pounds since the cut suit, life jacket and helmet weigh over 20 pounds a I weigh about 185 pounds... Since the driver is 40% of the all up weight where you are in the boat makes a big difference in trim. There is no power trim permitted, and the motor has a 1 to 1 direct drive lower unit, pull the rope and when she fires you're off. Power is a 44 cube Merc that makes about 55 hp and the prop centerline is 3/4 of an inch below the planning surface by rule.

    It's really a serious boat though, you don't run it by yourself, you need to make sure you have a chase boat in case you blow over if you're running serious speed and it's not a boat where you want to hit a wake that you didn't see coming at speed our you're going swimming. Most of the time I take it to events where there is a course set up and there's a safety boat in case you get thrown out or blow it over.... Also, every time you run it you're wearing proper safety equipment, a Kevlar suit that won't get cut by the prop if you fall out and get run over by your boat or another boat, proper helmet, even Kevlar socks, and of course a life jacket that is rated for the kind of speeds you're going to see.
     
  4. pauloman
    Joined: Jun 2010
    Posts: 267
    Likes: 10, Points: 18, Legacy Rep: 151
    Location: New Hampshire

    pauloman Epoxy Vendor

    our acrylic poly UV plus is a 2 part lpu acrylic poly clear gloss wth massive amounts of uv blockers and uv absorbers
     
  5. Doodler 2
    Joined: Jan 2018
    Posts: 18
    Likes: 0, Points: 1
    Location: Oregon USA

    Doodler 2 Junior Member

    Yellowjacket, that is for sure a wild ride. There was a time I would have wanted to take a test ride. But I don't bounce well anymore.
    Good to hear there are so many safety features to give a fighting chance for survival.

    Thanks pauloman for your reply. I will not be using any of the purple heart for anything on the boat. Just too rough of an environment.
    I have found a use for it that stays inside and UV won't be an issue.
     

  6. pauloman
    Joined: Jun 2010
    Posts: 267
    Likes: 10, Points: 18, Legacy Rep: 151
    Location: New Hampshire

    pauloman Epoxy Vendor

    I have a web page on UV issues that might offer some information
    epoxyproducts.com/uv.html
    paul - progressive epoxy polymers inc
     
Loading...
Similar Threads
  1. nbehlman
    Replies:
    35
    Views:
    1,789
  2. rael dobkins
    Replies:
    0
    Views:
    896
  3. Abinoone
    Replies:
    19
    Views:
    4,485
  4. peter1708
    Replies:
    7
    Views:
    2,912
  5. pungolee
    Replies:
    0
    Views:
    836
  6. jaberwocky
    Replies:
    9
    Views:
    1,329
  7. GayleForceFloat
    Replies:
    14
    Views:
    2,984
  8. Tinklespout
    Replies:
    5
    Views:
    2,050
  9. Wolfgang123
    Replies:
    29
    Views:
    5,500
  10. 44minimum
    Replies:
    16
    Views:
    4,563
Forum posts represent the experience, opinion, and view of individual users. Boat Design Net does not necessarily endorse nor share the view of each individual post.
When making potentially dangerous or financial decisions, always employ and consult appropriate professionals. Your circumstances or experience may be different.