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[PSUBS-MAILIST] MarkhamSub Plans
The plans are still available from:
http://www.scubatow.com/sub.asp
for the princely sum of $23.00.
They have some other scuba tow plans as well.
From: tmsmalley@usinternet.com
To: personal_submersibles@psubs.org
Subject: RE: Re: [PSUBS-MAILIST] First post -Acrylic Canopy design forming
Date sent: Thu, Jan 3 2002 8:00:36 GMT-0600
Send reply to: personal_submersibles@psubs.org
> Yes Raoul ~
> I have a set of the Kent Markham one man semi-dry sub plans I bought from Popular Mechanics Magazine back in
> 1968 (but haven't built it - yet :) A couple years later, he came out with a larger two man unit.
>
> The sub looks a little like a delta wing jet plane and uses two electric trolling motors for propulsion. The
> nose and sides are made from fiberglass resin and cloth and the canopy is acrylic that is inflated after
> heating to give it the proper shape. I never built it because I could never figure out an easy way to
> transport, launch and recover it.
>
> The driver sits on the battery box about waist/chest deep in water. The steering yoke controls two rudders
> mounted on the "wings" at the stern. Pushing or pulling the yoke controls the angle of the motors to vector
> their thrust up down or for level "flight".
>
> A pipe bent at a 90 degree angle and mounted to the bulkhead on the driver's right side is swiveled (raised or
> lowered) to allow more or less water inside the compartment for depth control.
>
> A scuba tank and regulator provides air to blow the compartment and refresh the atmosphere for the operator.
>
> I'm not sure if the plans are still available from the magazine or Markham and I'm not sure if the copyright
> is still in effect so I don't know if I can legally copy them.
>
> See more info about the Markham submarine - including his mailing address - on this site at:
>
> http://www.psubs.org/mlist/archive/9702/msg00010.html
>
> If you do a search on the PSubs website archive on the word "Markham" you will see a photo of the Markham
> "Wing" from the magazine story plus a photo of the two man version.
>
> Best regards,
> Tim Smalley
> Apple Valley, MN
>
>
> >
> >From: Raoul Hunter <raoul.hunter@zaf.sas.com>
> >Date: Thu, 3 Jan 2002 10:48:14 +0200
> >To: "'personal_submersibles@psubs.org'" <personal_submersibles@psubs.org>
> >Subject: RE: Re: [PSUBS-MAILIST] First post -Acrylic Canopy design forming
> >Hi
> >
> >I have been on site before (Ambient sub in Africa) and have learnt an awful
> >lot from the correspondence. But in you recent reply, you mention a Kent
> >Markham plans. Do you have any info on these plans, or can I find them, or
> >do you have any other info on a semi-wet design.
> >
> >Hope you can help.
> >Thanks
> >
> >Raoul
>
>
>