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RE: [PSUBS-MAILIST] Kort nozzles



It so happens I'm in the middle of making a kort nozzle myself. We'll see, if what I end up with is presentable I'll post some photos, but it's still too early to tell. Here's how I'm going about it. It's a combination 316 SS and epoxy job. First, I got three SS rings made. The leading and trailing edges will be SS rings, the leading edge one being made from larger diameter stock. The third ring is for reinforcement in the middle, and won't be visible as it will be glassed in. The outer skin of the kort is a sheet of 18 gauge 316 SS, tig welded to the rings. The skin was the tricky bit so far, because if you remember your geometry, a developed cone section is actually a shape with two different diameter curves, and all I had for making it was a jig saw. Anyway, the current status is that the SS parts are almost done, and I'll be moving on to the epoxy. The idea for that is to spread it using a cutout of the approximate kort section, and then mill it on a turntable to a proper finish. I expect the challenge there will be figuring out the mounting arrangement to do the milling.
 
Alec


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From: owner-personal_submersibles@psubs.org [mailto:owner-personal_submersibles@psubs.org] On Behalf Of JimToddPsub@aol.com
Sent: Tuesday, June 21, 2011 12:03 AM
To: personal_submersibles@psubs.org
Subject: [PSUBS-MAILIST] Kort nozzles

Alan,
 
Tell us a little more about your nozzles.  Are you constructing true Kort Nozzles with an airfoil type cross section or are you constructing prop shrouds (ducts) with walls of consistent thickness?
Kort Nozzle circulation.svg
 
Thanks,
Jim T
 
In a message dated 6/20/2011 5:49:26 P.M. Central Daylight Time, alanjames@xtra.co.nz writes:
Vance,
Most probably busy.
I've been doing my kort nozzles lately. This involved going round the shops with my
propeller in a plastic bag & fitting it in to various buckets to find one suitable  to mold around.
Maybe it's not the Aliens, maybe it's the men in white coats.
Alan
----- Original Message -----
Sent: Tuesday, June 21, 2011 9:20 AM
Subject: Re: [PSUBS-MAILIST] 2011 Convention

Okay, Alan. Maybe I don't have a problem after all. Mind you, quiet from this bunch might be construed two ways. Ominous, as in did the aliens come get everybody, or busy, as in we aren't talking, we're working. On subs, one hopes.
Vance



-----Original Message-----
From: Alan James <alanjames@xtra.co.nz>
To: personal_submersibles <personal_submersibles@psubs.org>
Sent: Mon, Jun 20, 2011 1:14 pm
Subject: Re: [PSUBS-MAILIST] 2011 Convention

Vance,
I haven't had any sub emails since 18th. Might just have gone quiet.
Alan
----- Original Message -----
Sent: Tuesday, June 21, 2011 8:59 AM
Subject: Re: [PSUBS-MAILIST] 2011 Convention

Jon,
Send me something on email, would you? I think some dirt bag has blocked some stuff on my AOL account in an effort to get me to fill out a really professional looking document which includes any and all personal information (including passwords and SSN). AOL doesn't ask for that stuff, and I wouldn't give it, of course. Meanwhile, I'm getting nothing for psubs or the enemy camp, and I don't know what else. Some gets through. Some doesn't. It seems to be the AOL thing, as the same thing happens on my iphone and Mac. Damn it. If you don't hear back from me this afternoon, I guess we'll have to figure something else out.
Vance



-----Original Message-----
From: Jon Wallace <jonw@psubs.org>
To: personal_submersibles <personal_submersibles@psubs.org>
Sent: Thu, Jun 16, 2011 5:53 am
Subject: [PSUBS-MAILIST] 2011 Convention


The 2011 Convention will be held in Everett, Washington Sept 8-10.  A 
basic schedule (still developing) is provided below with more details as 
the event planning proceeds.  Member Lea Nichols is acting as event 
coordinator this year.  A hotel has not been selected yet but will be soon.

CALL FOR SPEAKERS
If you are interested in speaking or making a presentation at the 
convention, contact lea@comptus.com or jonw@psubs.org.

CURRENT SCHEDULE
Thursday Sept 8
Tour Antipodes (owned by Ocean Gate) and a private K-350
http://www.opentheoceans.com/

Friday Sept 9
Speakers and Presentations at The Museum of Flight.
Includes lunch buffet and entry to museum.
Members $60
Non-members $80
http://www.museumofflight.org

Saturday Sept 10
Naval Undersea Museum, Keyport WA
Home of Triest II and Deep Quest.
http://www.navalunderseamuseum.org




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