Register

If this is your first visit, please click the Sign Up now button to begin the process of creating your account so you can begin posting on our forums! The Sign Up process will only take up about a minute of two of your time.

Search:

Type: Posts; User: pompebled

Page 1 of 40 1 2 3 4

Search: Search took 0.77 seconds.

  1. Replies
    820
    Views
    64,418

    14,8 x 2700 x 0,8 = 31968 rpm What I mean is,...

    14,8 x 2700 x 0,8 = 31968 rpm

    What I mean is, that if a 100A ESC only has a few Fets in contact with the cooler, it'll burn as soon as the Ampdraw exceeds 20-30A.

    Regards, Jan.
  2. Replies
    820
    Views
    64,418

    Hi Intense, I take a piece of flat hardwood,...

    Hi Intense,

    I take a piece of flat hardwood, the width of the Fet board and glue a piece of 120 grid sand paper onto it using double sided tape.
    I clamp the wood in the vice and move the fets...
  3. Replies
    820
    Views
    64,418

    View Post

    On my boat, 32 mm looks small too, but 32000 rpm is nothing to sneeze at...

    I'm running the 3700Kv motor on an ETTI 90A ESC and it barely gets warm, even on 3S, so a 100A ESC should handle a 4S...
  4. Replies
    820
    Views
    64,418

    Hi intenserapture...

    Hi intenserapture,

    Mathematically 4S x 2700Kv gives you close to 32000 rpm under load, which is high for a monohull, but it can be done.
    I would start with a 30 - 32 mm prop, preferably a metal...
  5. Replies
    29
    Views
    1,787

    RE: Need opinions on what could be wrong

    Hi Peter,

    I noticed in your opening post that you set the ESC's at a soft cut-off.
    I accidently had done this at one of my ESC's and the runtime was 'dramatically' short (2-3 minutes),...
  6. Replies
    4
    Views
    812

    RE: Gyro for trim tab control?

    Hi Dean,

    If you're going to try this in a medium speed scale build, it may be worth a try, but you may be right as to the correction always being a bit late...
    The faster you go, the more the...
  7. Replies
    20
    Views
    2,753

    RE: old Robbe Diabolo help needed...?

    Hi Colosus,

    I assume you know the 1300-9 needs watercooling on both can and brushtabs, to keep is alive on 20-24 cells NiMH or 7-8S Lipo?

    I added a picture of my 1300-7 with a custom made...
  8. Replies
    20
    Views
    2,753

    RE: old Robbe Diabolo help needed...?

    Hi Colosus,

    A large 920mm hull doesn't 'need' a flexshaft, a solid shaft will work just fine, as long as it's long enough to keep the propshaft angle at a minimum.
    The angle doesn't need to be...
  9. Replies
    820
    Views
    64,418

    RE: Prince 25

    Nice work Bass!

    I noticed in your previous set-up that you cooled the motor first and the ESC last, I'd reverse that in the current set-up, as the motor heats up the water substantually more...
  10. RE: turborix 2.4 tx will not set with forward only esc, pls help!

    Hi PM,

    If the ESC in question, or the TX at hand, gives you so much 'trouble', why not get another cheap tx/rx set from HC for this boat (and other boats that don't need a selfcentering stick,...
  11. RE: turborix 2.4 tx will not set with forward only esc, pls help!

    Hi PM,

    Did you consider a ratchet for that stick?

    I have one on my transmitter and use it for speedboats (forward only) and scale boats with reverse alike.
    Finding the center/zero point...
  12. Replies
    1
    Views
    285

    RE: Help picking the right boat.

    Hi Darren,

    A rigger is the fastest of the lot, it holds the world speed record with 140 mph, give or take a few miles...
    Now that particular one is the result of a team effort and a lot of...
  13. Replies
    28
    Views
    4,598

    RE: Shockwave 26 Brushless.

    Hi Rich,

    Now that's what I call service!

    I'm thrilled for you, go get them wet!

    Regards, Jan.
  14. Replies
    20
    Views
    1,501

    RE: RE Hobby King radio 2.4

    Hi Larry,

    For scale and sail they work fine.

    It may be an idea to get a seperate receiver for each model, to save time and trouble swapping from boat to boat.

    I'm running all my models...
  15. Replies
    20
    Views
    1,501

    RE: RE Hobby King radio 2.4

    Hi Blizard,

    As long as your transmitter can 'see' the boat (no obstructions by buildings etc.) these 2,4 sets even work on speedboats, where the roostertail is notorious for blocking the radio...
  16. Thread: ESC Help

    by pompebled
    Replies
    17
    Views
    1,676

    RE: ESC Help

    Hi syog100,

    Usually having seperate cooling lines for the ESC and the motor isn't really necessary, but it doesn't hurt either...

    The water that runs through the ESC first only gets a bit...
  17. Thread: ESC Help

    by pompebled
    Replies
    17
    Views
    1,676

    RE: ESC Help

    Hi syog100,

    I added a picture of the Mystery ESC without the shrinkwrap and the cooling plate; as you can see there are two PCB's with the powerfets and on the underside of the bottom one is...
  18. Replies
    5
    Views
    658

    RE: can i make it turn better

    Hi Tony,

    What you describe is typical for a surface piercing drive, as your boat has, it's called propwalk; the rotation of the prop, combined with the fact only one blade is in the water, will...
  19. Replies
    16
    Views
    2,441

    RE: 46

    Hi Woody,

    4-6 knots is walking speed...
    Look here, I think your dad will like this better:
    http://www.youtube.com/watch?v=OD9dnbj8bJA&feature=channel_page

    If I can find the thread on...
  20. Replies
    21
    Views
    1,824

    RE: Couple of boats to choose from

    Hi Madworm.

    The Shockwave and SV27 are well known, the V24 is the most scale looking boat, but it has the same motor as the much smaller Arpro, the 3635 1520KV outrunner is way too small for...
  21. Thread: LiPo Q

    by pompebled
    Replies
    5
    Views
    753

    RE: LiPo Q

    Hi John,

    Running lipo's in a 'hot' set-up requires pre-heating the lipo to 40°C prior to the run, failing to do so may result in bloating.
    This is a 'normal' response of a Lipo that's been...
  22. RE: sealing holes without useing rubber boot

    Hi Peter,

    If you don't like the looks of the rubber boots, mount them inside the boat.

    But on the water and at speed, who's going to notice if the boots are on the inside or outside...?
    ...
  23. Replies
    9
    Views
    851

    RE: brushless recomendation

    Hi Andy,

    I've been running the KD motors too and found them to be amphogs, if your hull runs light (pictures please?) this one draws less current and should work too:
    ...
  24. Replies
    2
    Views
    824

    RE: Surface drive design/tuning help

    I'll wait for the pictures, but it sounds like there's a flaw in your set-up somewhere...

    Regards, Jan.
  25. Thread: ESC Help

    by pompebled
    Replies
    17
    Views
    1,676

    RE: ESC Help

    Bug away, that's what a forum is about.

    Regards, Jan.
Results 1 to 25 of 1000
Page 1 of 40 1 2 3 4
All times are GMT -6. The time now is 07:58 PM.

SEO by vBSEO 3.6.1 ©2011, Crawlability, Inc.