M - PHM-1 Pegasus

Boeing Hydrofoil Site

Most ot these photos are from the IHS Gallery: http://www.foils.org/gallery/phm.htm

From Wikipedia:

Pegasus (PHM-1) (July 9, 1977–July 30, 1993), formerly Delphinus
Hercules (PHM-2) (December 18, 1982–July 30, 1993)
Taurus (PHM-3) (October 10, 1981–July 30, 1993)
Aquila (PHM-4) (June 26, 1982–July 30, 1993)
Aries (PHM-5) (September 18, 1982–July 30, 1993)
Gemini (PHM-6) (November 13, 1982–July 30, 1993

Posted by RV. 6/12/2013

From Mark Bebar, President, IHS:

I was working PHM follow-ship design effort as part of the Navy team and as far as I know, PHM-1 did not run aground. It did experience some whale strikes and collided with a very large log ("deadhead") when foilborne in Puget Sound. The log strike did serious damage to the forward foil and kingpost/kingpost bearing. The mishap resulted in a modification of PHM-3 Series specifications to require an energy absorber at the top of the forward kingpost. The specs included a specific log strike torque, applied very near the tip of the forward foil at design speed (48 knots). The design for the absorber basically consisted of a large disk made of aluminum, with shear bolts arranged around the circumference. The bolts were designed to break in a controlled way so as to absorb the forces of the log strike and prevent loss of the forward foil and kingpost.

As far as I can recall, there was never any mystery of what happened when TUCUMCARI hit the reef.

Editor's note: Tucumcari crashed into a reef of the coast of Puerto Rico. See PGH-2 album notes for details.
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File written by Adobe Photoshop? 4.0


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This photo of the PHM Pegasus was taken at the Boeing launching (Renton, WA) on 9 NOV 1974.


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This photo of the PHM Pegasus was taken at the Boeing launching (Renton, WA) on 9 NOV 1974.


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This photo of the PHM Pegasus was taken at the Boeing launching (Renton, WA) on 9 NOV 1974.


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This photo of the PHM Pegasus was taken at the Boeing launching (Renton, WA) on 9 NOV 1974.


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This photo of the PHM Pegasus was taken at the Boeing launching (Renton, WA) on 9 NOV 1974.
You can see the remains of the champagne bottle hanging from the starboard tip of the forward foil.


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This photo of the PHM Pegasus was taken at the Boeing launching (Renton, WA) on 9 NOV 1974.
A picture of the
cradle that supported the boat until it was floated off.


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This photo of the PHM Pegasus was taken at the Boeing launching (Renton, WA) on 9 NOV 1974.


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This photo of the PHM Pegasus was taken at the Boeing launching (Renton, WA) on 9 NOV 1974.


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This photo of the PHM Pegasus was taken at the Boeing launching (Renton, WA) on 9 NOV 1974.


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This photo of the PHM Pegasus was taken at the Boeing launching (Renton, WA) on 9 NOV 1974.


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This photo of the PHM Pegasus was taken at the Boeing launching (Renton, WA) on 9 NOV 1974.


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This photo of the PHM Pegasus was taken at the Boeing launching (Renton, WA) on 9 NOV 1974.


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This photo of the PHM Pegasus was taken at the Boeing launching (Renton, WA) on 9 NOV 1974.


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This photo of the PHM Pegasus was taken at the Boeing launching (Renton, WA) on 9 NOV 1974.


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This photo of the PHM Pegasus was taken at the Boeing launching (Renton, WA) on 9 NOV 1974.


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This photo of the PHM Pegasus was taken at the Boeing launching (Renton, WA) on 9 NOV 1974.


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This photo of the PHM Pegasus was taken at the Boeing launching (Renton, WA) on 9 NOV 1974.


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This photo of the PHM Pegasus was taken at the Boeing launching (Renton, WA) on 9 NOV 1974.


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This photo of the PHM Pegasus was taken at the Boeing launching (Renton, WA) on 9 NOV 1974.


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This photo of the PHM Pegasus was taken at the Boeing launching (Renton, WA) on 9 NOV 1974.
You can see the remains of the champagne bottle hanging from the starboard tip of the forward foil.


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http://www.explainthatstuff.com


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