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 Hi Brent  
Why not electrically or 
hydraulically driven with optional 
freewheeling retractable water filled wheels and oil filled hubs 
fitted directly to sub with some draw bar arrangement....just a 
thought 
Glen SA 
  
  ----- Original Message -----  
  
  
  Sent: Monday, June 22, 2009 6:26 AM 
  Subject: [PSUBS-MAILIST] Floating Sub 
  Trailer Options 
  
 
 
  Hey 
  Frank and Brian,  My relative that has build a good number of nice 
  trailers, likes to use Torflex rubber torsion suspension axles from Dexter 
  Axles. They have a nice clean look and they are lighter then your standard 
  leaf spring axles with the same load capacity. This also mean you can get away 
  from rusty leaf springs if you wish. There attachment means is simpler as 
  well.
  http://dexteraxle.com/i/u/1080235/f/product_flyers/Torflex_11-06.pdf
  http://www.dexteraxle.com/products___literature
  Dexter 
  also carries a line of axleless wheel assemblies for those that want to be 
  able to lower a sub between the wheels with out the axles getting in the way, 
  and to be able to transport the sub with it having a lower CG when on the 
  trailer. These axleless wheels are much like the larger ones you see on the 
  semi truck trailers that pick up bins of freshly picked fruit, and then 
  transport them to the packing houses.
  I've toyed with a few ideas for a 
  floating sub trailer that you could let most of the air out of the pontoons to 
  launch the sub, like some ski boats are launched from a float system that is 
  attached to a dock with a air compressor to refill the float system. But I 
  think I would rather have the floating sub trailer with it's small walk around 
  deck to stay on the surface so the launch crew don't have to get wet if the 
  sub is being launched away from a dock or other support boat.
  Here are 
  some pictures of one of Aerocet's models of amphibious floats. The retractable 
  wheels with disc brakes are very nice.  I have been thinking about a 
  larger floating sub trailer with two sets of wheels like this to be able to 
  handle the weight of my tow vehicle, when it's is being floated by the trailer 
  after the sub has been launched. But that's another story all together.  
  If I was making my own floats then I was thinking of making attachment arms 
  for electric thrusters, that are attached to the retractable wheels 
  assemblies, so that when the wheels where retracted, that the thrusters would 
  come down in there place to save on actuators.
  http://cid-5085d10eb6afe47c.skydrive.live.com/browse.aspx/Floating%20Sub%20Trailer%20Options
  Regards, Szybowski
 
  
  
    
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