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From: "A.Appleyard" <A.APPLEYARD@fs*.mt*.um*.ac*.uk*>
To: techdiver@terra.net
Date: Wed, 24 May 1995 09:39:11 BST
Subject: subskimmers(RIB that transforms to submerged diver-rider & back)
  Has anyone out there any news of the `Subskimmer' or anything similar? It is
a RIB about 5 feet wide and about 15-20 feet long. It can plane deflated. It
has: An arm across its front, hinged on at its middle, carrying at each end an
electric motor called a `thruster' for travel underwater, driven by a bulky
NiCd battery which is in a long wide tube in its keel (thus also acting as
ballast keeping it stable maneuvering on the surface). Amidships a big box
containing air pumps to inflate or deflate the boat, etc. Big air cylinders
for the divers to breathe off and to inflate the boat quickly. For surface
propulsion a petrol/gasoline outboard motor altered so its inlet and exhaust
can be quickly sealed watertight against depth pressure. Surface speed 20
knots for 2.5 hours. Underwater speed 2.5 knots for 2 hours. Big battery not
recharged from outboard motor? The thruster arm contains any extra kit like
sonar and navigation instruments. Recommended crew 3, but larger versions
could be made. Very flexible; it is a RIB that can transform into a submerged
diver-rider and back!!! and you can take your boat down with you and you don't
have to leave it and if anything happens (e.g. getting caught in a fast
current) you can surface and you've got your boat with you at once.
   Subskimmer was started by an aqualung etc factory called Submarine Products
Ltd (Hexham, Northumberland, England). This closed; Subskimmer was taken over
by Defence Boats Ltd (also Hexham). This closed; Subskimmer (now named Kraken
90) (my last info is in Dec 1992) is/was being made by a firm (then small)
called Serrico Ltd, La Hache, St.Martin St.Firmin, 27450 St.Georges du Vievre,
France (probably in Normandy, probably in the departement de l'Eure).
  I feel that, to recover research costs, they badly overpriced it, hoping for
a small highly paying naval and commando and patrol market. The last price for
it that I heard of was 100,000 (yes, 1e5!!) UK pounds :-( :-( :-(, else it
would likely have gone like hot cakes to diving centres and diving clubs etc!!
Still perhaps there is still time for them to change their minds on this.
  Names: `Subskimmer' is Submarine Products's and Defence Boats's tradename
for it. (Serrico now calls it Kraken 90. Beware confusion: part of the innards
of the Carmellan SMS2000 automatic mixture rebreather is/was also called
Kraken. The original Kraken was a legendary supergiant squid monster.) The
name `Subskimmer' suggests its use better than `Kraken', so I keep on using
the name `Subskimmer' here although it is not the current name.
  Please! Diving needs subskimmers! They sound incredibly handy! When <will>
they become affordable!? Has anyone else heard of (1) anyone else making any
sort or make of subskimmer or anything like one (in a factory, or some diving
hobbyist subskimmerifying an ordinary RIB); (2) anyone using one; (3) any
fictional uses of them (bibliographic reference please)?

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