[PSUBS-MAILIST] Commercial question

Tue May 13 21:33:37 EDT 2014

Re: HP per ton – We are now running the big ‘Newt-screws’ (unofficial name) on both the dual and single DeepWorkers. The single two thousand footer comes in at just over two tons and has 20 HP (4 X 5HP combined vertical and horizontal) These units can be dialled back to any rating up to a max of 5 HP  -if you want to conserve batteries and don’t need the extra oomph – we’ve also switched to LiOH battery packs. 3 times the duration at half the weight – what’s not to like?? 
Phil

From: Vance Bradley via Personal_Submersibles 
Sent: Tuesday, May 20, 2014 5:28 PM
To: Personal Submersibles General Discussion 
Subject: Re: [PSUBS-MAILIST] Commercial question

Which may explain why that big anvil in back kicks such serious ass, even with Captain George's dinky prop.
Vance

Sent from my iPhone

On May 20, 2014, at 8:08 PM, Jon Wallace via Personal_Submersibles <personal_submersibles at psubs.org> wrote:

  That puts K-350 at the heavy power end, a strong 2HP per ton if you include the maneuvering motors.
  Jon

  On 5/20/2014 8:21 AM, via Personal_Submersibles wrote:

    Better a question for Phil, I think. Gamma has 2 hp and weighs 2 tons. PC-12 had a combined 13 hp for 8 tons (10 main plus two horizontal and one vertical maneuvering thruster). The Pisces boats used a pair of 5 hp thrusters for 12-12 tons. So it is beginning to look like about 1 to 1.5 per ton, now that I think about it. 
    Vance

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