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To: techdiver@opal.com
Subject: Re: MK V MODEL 1 NAVY HELMET
From: "A.Appleyard" <A.APPLEYARD@fs*.mt*.um*.ac*.uk*>
Date: Thu, 16 Mar 1995 09:06:57 GMT
Andrew Cohen <Andrew_Cohen@cc*.ss*.nm*.go*> wrote (Subject: MK V MODEL 1
NAVY HELMET):-

> After years of searching I've finally obtained a navy Mk.5 model 1 helmet.
> The breastplate indicates it was manufactured by Schrader's Son & Co,
> Brooklyn NY, 1943. ... I also purchased the canvas dress (US rubber, January
> 1941) and the lead and brass overshoes. ... Now all I need is a Cis-Lunar
> and my dive locker will be complete.

  (1) Presumably not to run the diving suit that you mention off the breathing
set that you mention! :-)
  (2) Although I once saw a picture of a diver in an old-style heavy hardhat
suit with no lifeline or airline but instead an enormous backpack air
cylinder.
  (3) I've used UK (Siebe Gorman) hardhat kit twice. I found that breast
stroke swimming underwater in it is possible, lead boots and all! (I needed to
go up a 45 degree slope, and after much past swimming and aqualunging I
started breast stroke swimming by force of habit.) The instructor (ex-naval,
called Ginger Snell) talked after that as if breast stroke swimmimg in hardhat
kit was known of, but said that it was inadvisable as it is too likely to
leave the diver feet-up and getting blown. I would imagine that the rear end
of a breaststroking hardhat diver would be rather lethal, with those great
lead boots flying about like the back feet of a Shire carthorse which is
kicking all the time!

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