Fort Pierce in St. Lucie County, Florida — The American South (South Atlantic)

Mark IX

Swimmer Delivery Vehicle [SDV]

— National Navy UDT-Seal Museum —

Mark IX Marker image. Click for full size.

Photographed By Brandon D Cross, November 13, 2021

1. Mark IX Marker

Inscription. Designed primarily for hydro-graphic reconnaissance and weapons delivery in the early 1970s, this two-man SDVwas propelled by an electric motor with power supplied by rechargeable batteries. It had manual steering and diving controls. A computerized navigation system, and a docking system were used in guiding the craft and in rendezvousing with parent submarine. This model was designed to carry and launch torpedoes at a distant target. Speed was several knots when submerged. Weight is approximately 5,000 pounds.

Erected by National Navy UDT-Seal Museum.

Topics. This historical marker is listed in these topic lists: War, Cold • War, Vietnam • Waterways & Vessels.

Location. 27° 29.701′ N, 80° 18.006′ W. Marker is in Fort Pierce, Florida, in St. Lucie County. Marker can be reached from Florida Route A1A, 0.3 miles south of Jackson Way, on the right when traveling north. Located on the grounds of the National Navy UDT-Seal Museum at the south entrance. Touch for map. Marker is at or near this postal address: 3300n Florida A1A, Fort Pierce FL 34949, United States of America. Touch for directions.

Other nearby markers. At least 8 other markers are within walking distance of this marker. Memorial Garden / Memorial Living Beach (here, next to this marker); Beach Obstacles (here, next to this marker); Memorial Wall

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(a few steps from this marker); Mark 8 Mod 0 SEAL Delivery Vehicle [SDV] (a few steps from this marker); Navy Seal Ty Woods (a few steps from this marker); Never Out of the Fight (a few steps from this marker); WWII Beach Defense (a few steps from this marker); Mark VII Mod 0 Delivery Vehicle (SDV) (a few steps from this marker). Touch for a list and map of all markers in Fort Pierce.

Mark IX Display image. Click for full size.

Photographed By Brandon D Cross, November 13, 2021

2. Mark IX Display

Mark IX Swimmer Delivery Vehicle [SDV] image. Click for full size.

Photographed By Brandon D Cross, November 13, 2021

3. Mark IX Swimmer Delivery Vehicle [SDV]

National Navy UDT-Seal Museum image. Click for full size.

Photographed By Brandon D Cross, November 13, 2021

4. National Navy UDT-Seal Museum

Credits. This page was last revised on November 29, 2021. It was originally submitted on November 22, 2021, by Brandon D Cross of Flagler Beach, Florida. This page has been viewed 115 times since then and 15 times this year. Photos: 1, 2, 3, 4. submitted on November 22, 2021, by Brandon D Cross of Flagler Beach, Florida. • Devry Becker Jones was the editor who published this page.