{"product_id":"submarine-torpedo-data-computer-mark-3-manual","title":"Submarine Torpedo Data Computer Mark 3 Manual","description":"\u003cp\u003eSituated in the conning tower, the Torpedo Data Computer Mark III was the standard fire control device used by U.S. Navy submarines during the first half of WWII.  An electro-mechanical, analog computer, the TDC provided fire control solutions through a variety of inputs, including submarine course and speed, estimated target course,speed and range, and torpedo type in use. Originally printed by the Arma Corporation and the U.S. Navy, this Mark 3 manual provides a fascinating glimpse inside this mechanical wonder. Please note, due to quality issues with the original document, some pages may be slightly sub-standard.  Care has been taken to preserve the integrity of the original text.\u003c\/p\u003e","brand":"Periscope Film LLC","offers":[{"title":"Paperback","offer_id":43997870063777,"sku":"9781935327073","price":37.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0462\/1120\/3233\/files\/1ny482v-front-shortedge-384.jpg?v=1747590645","url":"https:\/\/bookswholesale.myshopify.com\/products\/submarine-torpedo-data-computer-mark-3-manual","provider":"BooksWholesale","version":"1.0","type":"link"}