Tuesday, May 22, 2018

Manitowoc Submarines

Manitowoc was a ship building company that transitioned to crane building. During WWII, they were still building boats, and they produced 28 submarines. These were some of the boats that caused the bridges on the Chicago Sanitary & Ship Canal to be made movable because the St. Lawrence Seaway did not open until 1959.

I knew Manitowoc got into the crane building business because no one was building a crane big enough to meet their needs. Judging from some comments, these submarine modules were the lifts that required a bigger crane.

Ben Stalvey posted
Manitowoc 3900 hard at work lifting a section of a World War II Gato Class Submarine for Manitowoc Shipbuilding.
David Guarino Double lift.
Jeff Young He's pick n carry

Barry Thornberry posted
Photo Notes: Manitowoc 3900 hard at work lifting a section of a World War II Gato Class Submarine for Manitowoc Shipbuilding.
Al Marchitto Jr The first 3900s at the Manitowoc shipyard.

Hans van Vliet posted
Placing a hull section of a submarine at Manitowoc Shipbuilding.
Ken Hart North shore of Manitowoc river..background MirroAluminum!..
Hans van Vliet commented on Ken's comment in a posting
Hans van Vliet posted seven photos with the comment: "Manitwoc Speedcranes during the construction of the first submarine: Peto, build at Manitowoc Shipbuilding Co. 1942."

Ben StalveyBen and 4 others manage the membership, moderators, settings, and posts for Manitowoc Crane Enthusiasts. Manitowoc transporter
Hans van Vliet Early version
David Guarino That is a small area to spend a lot of time underwater. I remember seeing the captain's 'cabin' on a WW2 submarine. It was about the size of a small closet. Interesting how they constructed them in sections like that. I think Electric Boat/GD still does it that way.
Hans van Vliet When Manitowoc starts building submarines in this way they where ahead of that time. They delivered their first submarine 228 days ahead of schedule. Finally they build 28 subs, and the last one delivered on the date scheduled for the 10th submarine of the original contract. Total production of 28 submarines was completed for $5,190,681 less than the contract price.






Hans van Vliet posted four photos with the comment: "Pictures taken during the construction of the submarine Pogy at Manitowoc Shipbuilding Co. 1942."





Hans van Vliet posted
Manitowoc Speedcrane with jib attachment (left) during the completion of the submarine Robalo at Manitowoc Shipbuilding 1943

Matthew Floorguy Manning posted
Here's a cool thing I learned several years ago when visiting Manitowoc, Wi, during WW2, submarines were manufactured there & put on barges & floated down to the Illinois river & then to the Mississippi River to New Orleans for them to put the final touches on the subs. They said at the museum that they couldn't float them down the river, is because the draft were to deep for the subs. I would like to see more pics of subs on barges going down the Mississippi, if any of you guys have any.

Matthew commented on his post


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