[SPAM] RE: [SPAM] RE: Unusal Props

[Bill Glaze]

Not Hitachi; it was Toshiba.  Bill Glaze

Mark Grabowski wrote:

> So when Hitachi (I believe) released that top-secret sub prop 
> technology to the Russkies in the 80's, we made lemonade out of 
> lemons, eh? ;-)
>
>     -----Original Message-----
>     From: Dean Pappas [mailto:d.pappas at kodeos.com]
>     Sent: Wednesday, November 17, 2004 12:56 PM
>     To: discussion at nsrca.org
>     Subject: RE: [SPAM] RE: Unusal Props
>
>     That's right, and it was a closely held technology until only a
>     few years before APCs became available.
>      
>     The benefits of the scimitar shape for delaying compressibility
>     effects at high prop tip Mach numbers have been known since WW2.
>     As it turns out, Von proved the value of knowing how to read!
>      
>
>     Dean Pappas
>     Sr. Design Engineer
>     Kodeos Communications
>     111 Corporate Blvd.
>     South Plainfield, N.J. 07080
>     (908) 222-7817 phone
>     (908) 222-2392 fax
>     d.pappas at kodeos.com
>
>         -----Original Message-----
>         From: discussion-request at nsrca.org
>         [mailto:discussion-request at nsrca.org]On Behalf Of
>         DaveL322 at comcast.net
>         Sent: Wednesday, November 17, 2004 1:44 PM
>         To: discussion at nsrca.org
>         Subject: [SPAM] RE: Unusal Props
>
>         I believe the CAD/CAM, software, algorithms, etc used to
>         develop the technology/process for the APC prop line came from
>         "quiet" propellers on submarines.
>          
>         Regards,
>          
>         Dave Lockhart
>         DaveL322 at comcast.net <mailto:DaveL322 at comcast.net>
>          
>
>             -------------- Original message --------------
>             Dave Von Linsowe was experimenting with semi-scimitar
>             shaped props at that time, I wonder if APC was influenced
>             by his efforts.
>              
>              
>              
>             Rich
>              
>
>                  
>                 -----Original Message-----
>                 From: discussion-request at nsrca.org
>                 [mailto:discussion-request at nsrca.org] On Behalf Of
>                 Rcmaster199 at aol.com
>                 Sent: Wednesday, November 17, 2004 1:32 PM
>                 To: discussion at nsrca.org
>                 Subject: Re: Unusal Props
>
>                 Yes we do. The semi-scimitar design was a huge
>                 departure from the "Normal". I heard from many
>                 "...what an ugly prop.....never will use.... blah,
>                 blah, blah...." among other things. But performance
>                 has silenced everyone.
>                  
>                 Matt
>                  
>                  
>                 In a message dated 11/17/2004 1:24:21 PM Eastern
>                 Standard Time, rcaerobob at cox.net writes:
>
>                     Mostly the Rev Ups were used because they made our
>                     motors SING!!!  I mean FAST...LOUD...but never
>                     went anywhere.
>                         We didn't know better.
>                      
>                     Then came MK and Asano....
>                     Then this maverick APC thing....Boys, we remember
>                     when THOSE first hit the pits, don't we??????????
>
>                     Bob Pastorello
>                     NSRCA 199  AMA 46373
>                     rcaerobob at cox.net <mailto:rcaerobob at cox.net>
>                     www.rcaerobats.net <http://www.rcaerobats.net/>
>                      
>                      
>
>                         ----- Original Message -----
>                         From: Eddie Batchelor
>                         <mailto:perkinsrx at centurytel.net>
>                         To: discussion at nsrca.org
>                         <mailto:discussion at nsrca.org>
>                         Sent: Wednesday, November 17, 2004 12:18 PM
>                         Subject: RE: Unusal Props
>
>                         True  It might be that.
>                         I don't think I've ever seen a prop labeled as
>                         to how many blades.
>                         Interesting thought
>                         I like you're "tlarld"
>
>                         the prop markings are like this
>                                   2
>                               12  O  5
>                                 REV-UP
>
>                         with the "O" being the hole in the middle.
>
>                         It's times like this I wish the "list" could
>                         handle pictures. <G>
>
>                         Eddie
>
>                  
>                  
>
> ------------------------------------------------------------------------
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