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The following specs have been contributed by Robert (Bob) C. Sowell Jr. ET3 (Retired): No doubt, initially, when her construction began during WW II the plan was for her to have 126 cells forward and 126 aft; however, before her construction was completed in 1949 the new Ni-Cad battery had been developed that produced the same power with half the size and weight. The Pickerel had four 126 cell NiCad batteries, two in the Forward Battery Compartment and two in the After Battery Compartment. This additional battery power coupled with her streamlined superstructure boasted her underwater speed to about twice of that of conventional WWII Fleet type boats.
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|53k||Northern pike (E. lucius), or Pickerel.||Courtesy of wikipedia.org.|
|222k||Broadside view of a cutout of a GUPPY design.||Photo courtesy of ussgrampus.com.|
|182k||Overhead view of a cutout of a GUPPY design.||Photo courtesy of ussgrampus.com.|
|64k||Pickerel (SS-524), off the Portsmouth Naval Shipyard, New Hampshire, 21 July 1949.||Official USN photo # NH 97020, from the collections of the Naval Historical Center.|
|61k||Pickerel (SS-524), possibly off the Portsmouth Naval Shipyard, New Hampshire, 21 July 1949.||USN photo from The World Encyclopedia of Submarines, by John Parker, courtesy of Robert Hurst.|
|34k||Bass (SSK-2), Bonita (SSK-3),Greenfish (SS-351) and Pickerel (SS-524) at Pearl Harbor, 1950.||Courtesy of Grant Riddle / submarinebaseph.com.|
|758k||Pickerel (SS-524) arriving at Pearl Harbor on 9 April 1950 after her 5,200 mile submerged trip from Hong Kong.||Vallejo Naval and Historical Museum photo courtesy of Darryl L. Baker.|
|44k||Pickerel (SS-524) returning to Pearl Harbor after a record-setting 21-day submerged run snorkeling across the Pacific from Hong Kong.||Courtesy of Grant Riddle / submarinebaseph.com.|
|104k||"Crew members of the streamlined submarine Pickerel (SS-524) are shown beside a huge lei presented to the officers and men as the submarine docked at Pearl Harbor today, 4 November. She was among the first Pearl Harbor based submarines to return from the Korean War Zone. "The original photograph was released by 14th Naval District PIO, and is dated 4 November 1950. The sailors are standing on Pickerel's bow, by her sonar dome and jackstaff.||Official USN photo # NH 97017, from the "All Hands" collection at the Naval Historical Center.|
|108k||Pickerel (SS-524), surfacing at a 48 degree up angle, from a depth of 150 feet, during tests off the coast of Oahu, Hawaii, 1 March 1952.
"The purpose of this operation was to enable the Navy's submarine experts to evaluate the sub's capabilities and characteristics of the GUPPY-snorkel type sub.
This picture was taken from Sabalo (SS-302). Her sonarmen kept Pickerel under observation while she was submerged and preparing to surface. During Pickerel's maneuvering the sonar gear delivered the constantly changing relative bearing which enabled the photographers to make this shot as she broke the surface."
Note: The official record of the "surfacing" pictured above is that it started at 150 feet and reached a 48 degree up-angle. From a crew-member manning the helm during this evolution:
"We started at 250 feet, flank speed. The surfacing order included 'use 60 degrees' (the highest reading on the -bubble-type' angle indicator).
"We overshot, and lost the bubble at 65 degrees. The maximum angle (72 degrees) was calculated later by the highwater marks in the Pump Room bilges. Thinking back, even with the bow sticking above water up to the bridge fairwater, the screws wouldn't have been much above where we started, still pushing us upward.
"First message from the Queenfish (SS-393) which was accompanying us: 'What is the specific gravity of your Torpedo Room bilges?'
"As you may imagine, the C.O. was something of a competitive wildman, pushing to find out what the limits were for these new GUPPY boats, after putting up with the older WW2 boats. And, we had to beat the Amberjack's (SS-522) record of 43 degrees."
| Text from All Hands magazine, May 1952 edition, courtesy of Stan Svec & /ussubvetsofworldwarii.org.
Official USN photo # NH 97019, from the collections of the Naval Historical Center.
|177k||Captain Ignatius J. Galantin at change of command ceremony relinquishing command of Submarine Squadron 7, Pearl Harbor, to Captain R.H. O'Kane, 6 July 1954 aboard the Pickerel (SS-524).||USN photo via Bill Gonyo.|
|493k||Pickerel (SS-524), off Pearl Harbor, Oahu, Hawaii, 4 April 1955.||Official USN photograph, # NH 97021, from the collections of the Naval Historical Center.|
|167k||Prior to the Guppy III conversion Pickerel (SS-524) is framed in a 1962 Xmas card.||Photograph courtesy of Jim Kelling.|
|169k||Colored Pickerel (SS-524) from the above text.||Photograph courtesy of Jim Kelling.|
|119k||Pickerel (SS-524) in drydock at the Pearl Harbor Naval Shipyard while she was undergoing Guppy III conversion, Fall of 1962.||Photograph courtesy of Jim Kelling.|
|397k||Pickerel (SS-524), underway off the coast of Oahu, Hawaii, 17 January 1963.||Official USN photograph, # NH 97022, Photographed by PH2 D.C. Smith, USN, from the collections of the Naval Historical Center.|
|163k||Pickerel (SS-524), with P-3 Orion flying overhead, circa 1960's.||USN photograph # NPC 1107880, courtesy of Scott Koen & ussnewyork.com.|
|759k||Formal dinning-in retirement of CDR Edgar G. Hanson (Former CO of Pickerel (SS-524) at Mare Island on 22 July 1967. Captain B. C. Jarvis, standing to the far right, was the WWII commanding officer of the Baya (SS-318).|
Left to right: Standing RADM Lawrence (ret), CDR Edgar G. Hanson and Capt. B. C. Jarvis. Seated Mrs. Jarvis, Mrs. Hanson and Mrs. Lawrence.
|Photo from the files of the Vallejo Naval and Historical Museum via Darryl L. Baker.
Photo added 02/09/14.
|85k||Pickerel (SS-524), surfaced and underway off Hawaii, circa late 1960's.||Photo courtesy of George M. Arnold.|
|564k||Submarine are from left to right: Halibut (SSGN-587), Pickerel (SS-524), Perch (LPSS-313), Unidentified, Sterlet (SS-392) at Submarine Base Pearl Harbor on 12 April 1967.||USN photo courtesy of Darryl L. Baker.
Photo i.d. courtesy of John Hummel & Dave Johnston (USNR).
|309k||A 1969 Pickerel (SS-524).||USN photograph courtesy of Scott Koen & ussnewyork.com.|
|321k||Bow on Pickerel (SS-524).||USN photograph courtesy of Scott Koen & ussnewyork.com.|
|214k||Port Pickerel (SS-524).||USN photograph courtesy of Scott Koen & ussnewyork.com.|
|122k||Pickerel (SS-524), underway in the Pacific Ocean, September 1969.
The boat was in the Atlantic in September 69, because we were transferred to SUBRON 4 and arrived in Charleston in June 69. If that pic was taken in Hawaiian waters, the very latest it could have been taken was early June 69.
| Official USN photograph # USN 1140854, from the collections of the Naval Historical Center.
Photo i.d. & text courtesy of Dick Helm, 1968-71.
|136k||H-mail arrives before e-mail.
During a training op off Bermuda, 69-71, we received some mail via a helo transfer. With the wind, sea, and weather conditions just right, the young stud helo pilot decided to hand us the package thru the helo door instead of dropping it on a line! He was just a few feet off the deck.
|Photo courtesy of Frank Pasquinelli. (CDR-USN-ret) via Ron Reeves.|
|953k||Crew members of the Pickerel (SS-524) during UNITAS XI 1970.||USN photo by LCDR Orlando Gallardo, Jr.|
|Primo Longobordo (S-501)|
|197k||Merchant ships waiting to unload in the harbor of Taranto, Italy in 1972 backdrop the ex-Pickerel (SS-524) as the Itialan Primo Longobordo (S-501).||Itialian Navy photo by Lt.Cdr. Erminio Bagnasco via Maurizio Brescia.|
|129k||ex-Pickerel (SS-524) as the Itialan Primo Longobordo (S-501) at Taranto, 1973.
Not much has changed from her appearance in U.S. service except a loss of 23 numbers.
|Photo from the Maurizio Brescia collection.|
|295k||The Primo Longobordo (S-501) departs Toulon on 21 November 1973.||Photo by Carlo Martinelli.|
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