O - HS Denison: B & W by Floyd Marken
INTERNATIONAL HYDROFOIL SOCIETY'S ALBUMS > O - HS Denison: B & W by Floyd Marken
Floyd Marken was a project engineer on the Dennison as well as the Dolphin, Flagstaff, and the Israeli Navy hydrofoil. He has many photos of the Dennison many of which are of when the boat ran aground in the Carolinas and lost it's foils.
He also has some photos of the Dolphin during construction at Blohm & Voss.
Additionally he has a brochure on the Dolphin that the Garrett company published, news paper articles and copies of the Grumman Plane News with articles pertaining to the Dennison.
We will add these as they become available from his son Greg Markin

This story comes to us from Anthony Clark, August 2014:

"My father, William P.O. Clarke Jr. was the captain of the Denison. He started out as a test engineer at Dynamic Developments in 1956 under Bill Carl. Dad flew the XCH-4, the XCH-6, the Sea Wings boats and Great Expectations which led to the Denison.
Dad told me he was at the controls when the Denison ran aground. She was foil born doing 55 knots or so. It was in the Cape Fear river. He started a turn at the day marker per the navigational guide. The hydrofoil turns quicker than a displacement hull. She did not side slip into the channel like a displacement hull and she ran aground. He saw it as a major command failure on his part and it bothered him until he died.
He would continue at Grumman as a contract negotiator on the L.E.M. program and the shuttle wing program.
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HS Denison 2

"Written by Anthony Clark, August, 2014

"My father, William P.O. Clarke Jr. was the captain of the Denison. He started out as a test engineer at Dynamic Developments in 1956 under Bill Carl. Dad flew the XCH-4, the XCH-6, the Sea Wings boats and Great Expectations which led to the Denison.
Dad told me he was at the controls when the Denison ran aground. She was foil born doing 55 knots or so. It was in the Cape Fear river. He started a turn at the day marker per the navigational guide. The hydrofoil turns quicker than a displacement hull. She did not side slip into the channel like a displacement hull and she ran aground. He saw it as a major command failure on his part and it bothered him until he died.
He would continue at Grumman as a contract negotiator on the L.E.M. program and the shuttle wing program."


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HS Denison 1


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HS Denison 3


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Denison, A group photo taken on the boat, my father, Floyd Marken, is wearing the bowtie standing fourth from the left.


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HS Denison 2
This batch is of the launching of the boat at Jacobsens Ship Yard in Oyster Bay Long Island. I believe these were taken in early June of 1962.
Regards,
Greg

Canon Inc


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HS Denison 2
This batch is of the launching of the boat at Jacobsens Ship Yard in Oyster Bay Long Island. I believe these were taken in early June of 1962.
Regards,
Greg

Canon Inc


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HS Denison 2
This batch is of the launching of the boat at Jacobsens Ship Yard in Oyster Bay Long Island. I believe these were taken in early June of 1962.
Regards,
Greg

Canon Inc


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HS Denison 2
This batch is of the launching of the boat at Jacobsens Ship Yard in Oyster Bay Long Island. I believe these were taken in early June of 1962.
Regards,
Greg

Canon Inc


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HS Denison 2
This batch is of the launching of the boat at Jacobsens Ship Yard in Oyster Bay Long Island. I believe these were taken in early June of 1962.
Regards,
Greg

Canon Inc


image

HS Denison 2
This batch is of the launching of the boat at Jacobsens Ship Yard in Oyster Bay Long Island. I believe these were taken in early June of 1962.
Regards,
Greg

Canon Inc


image

HS Denison 2
This batch is of the launching of the boat at Jacobsens Ship Yard in Oyster Bay Long Island. I believe these were taken in early June of 1962.
Regards,
Greg

Canon Inc


image

HS Denison 2
This batch is of the launching of the boat at Jacobsens Ship Yard in Oyster Bay Long Island. I believe these were taken in early June of 1962.
Regards,
Greg

Canon Inc


image

HS Denison 2
This batch is of the launching of the boat at Jacobsens Ship Yard in Oyster Bay Long Island. I believe these were taken in early June of 1962.
Regards,
Greg

Canon Inc


image

HS Denison 2
This batch is of the launching of the boat at Jacobsens Ship Yard in Oyster Bay Long Island. I believe these were taken in early June of 1962.
Regards,
Greg

Canon Inc


image

HS Denison 2
This batch is of the launching of the boat at Jacobsens Ship Yard in Oyster Bay Long Island. I believe these were taken in early June of 1962.
Regards,
Greg

Canon Inc


image

HS Denison 2
This batch is of the launching of the boat at Jacobsens Ship Yard in Oyster Bay Long Island. I believe these were taken in early June of 1962.
Regards,
Greg

Canon Inc


image

HS Denison 2
This batch is of the launching of the boat at Jacobsens Ship Yard in Oyster Bay Long Island. I believe these were taken in early June of 1962.
Regards,
Greg

Canon Inc



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HS Denison 2
This batch is of the launching of the boat at Jacobsens Ship Yard in Oyster Bay Long Island. I believe these were taken in early June of 1962.
Regards,
Greg

Canon Inc


image

HS Denison 2
This batch is of the launching of the boat at Jacobsens Ship Yard in Oyster Bay Long Island. I believe these were taken in early June of 1962.
Regards,
Greg

Canon Inc


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A1 Bow: Starboard list approximately 12 degrees. Draft at about low tide. PF 36 along-side for salvage operations.


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A2 Starboard Side: Foil in partially retracted Position supporting Stern.


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A3 Stern: Main foils removed. Heading after bow was pushed to port 30-40 degrees by the tug. Shot by Canon Inc


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A4 Port Side: List to Starboard. Soft patch at chine in position. Shot by Canon Inc


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A5 Aft Looking Forward: List to Starboard. Ships head at grounding slightly to right of buoy 46A (small dot between small craft and pylon 45. Shot by Canon Inc


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Canon Inc


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