The Cold War
American Radar Picket Submarines
Tench class
A Study in Blueprints

by Duane Borchers, Sr.

BK-073 $80.00 (Foreign; $110.00)(11"x17" soft cover book book of engineering drawings, 205 pages)
Subs of class: USS Requin (SS-481)(SSR-481), USS Spinax (SS-489)(SSR-489) and USS Tigrone (SS-419)(SSR-419).

List of Blueprints

Title

Shipyard &
Vessel

Date of
Document

Page

Inboard profile & plans, Migraine #1,
conversion of fleet type submarine,

Naval Shipyard
Portsmouth, N.H.
SSR-481 & 489

Mar. 31, 1948

11-15

Inboard profile & plans,

do.

Jan. 14, 1949

16-19

Outboard fittings, general
arrangement,

do.
SSR-419

Oct. 20, 1948

20-22

do.

do.
SSR-481 & 489

June 22, 1948

23-25

Modifications to outboard fittings,

do.
SSR-481

Sept. 3, 1948

26-28

Bonjean curves,

do.
SS-475-490

Mar. 22, 1941

29-30

Lines-molded offsets, main deck,

do.
SS-381-424

Jan. 4, 1943

31-32

Body plan, outer hull,

do.
SS-417-424

Oct. 21, 1943

33

Docking plan,

do.
SSR-419

April 15, 1949

34

Outer shell expansion,

do.
SS-417-424

Aug. 11, 1943

35-37

Superstructure sides and main deck,
frames 10 to 45 incl.

do.
SS-419

Sept. 30, 1948

38-40

Superstructure and main deck,
frames 45 to 66 incl.

Naval Shipyard
Portsmouth, N.H.
SSR-419

Oct. 15, 1948

41-42

Superstructure sides and main deck,
frames 66 to 125 incl.

do.

Oct. 18, 1948

43-45

Top of hull, holes & attachments,

do.
SSR-481 & 489

Dec. 1, 1948

46-47

Top of hull and bottom of conning
tower, holes & attachments,

do.
SSR-419

Mar. 3, 1949

48-50

Bow framing, elevation & flats,

do.
SS-417-424

May 16, 1943

51-52

Modification to bow framing,

do.
SSR-419

May 11, 1948

53-55

Bow framing, sections A to 9 incl.

do.
S-417-424

Oct. 29, 1943

56-57

Bow framing, sections 10 to 16 incl.

do.

Oct. 23, 1943

58-59

Frames 17-18-19-20-21,

do.

Oct. 1, 1943

60

Frames 22-23-24-25-26,

do.

Sept. 30, 1943

61-62

Frames 27-28-29 & 30,

do.

Sept. 29, 1943

63

Frames 31-32-33-34,

do.

Sept. 28, 1943

64-65

Frames 36-37 & 38

do.
SS-419, 481 & 489

Sept. 8, 1943

66

Frames 39-40-41

do.
SS-417-424

July 27, 1943

67

Frames 42-43-44,

Naval Shipyard
Portsmouth, N.H.
SS-419, 481 & 489

Sept. 12, 1943

68

Frames 45-46-47,

do.
SS-417-424

July 27, 1943

69

Frames 48-49-50,

do.

July 30, 1943

70

Frames 51-52-53,

do.

do.

71

Frames 54-55 & 56,

do.

July 27, 1943

72

Frames 57-58 & 59,

do.

July 19, 1943

73

Frames 60-61 & 62,

do.

July 29, 1943

74

Frames 63-64-66-68,

do.

July 27, 1943

75-76

Frames 65, 67 & 69,

do.

July 26, 1943

77-78

Frames 70-71-72 & 73,

do.

July 20, 1943

79

Frames 74-75 & 76,

do.

July 19, 1943

80

Frames 77-78-79,

do.

July 22, 1943

81

Frames 80-81 & 82,

do.

July 19, 1943

82

Frames 83-84 & 85,

do.

July 30, 1943

83

Frames 86-87 & 88,

do.

July 21, 1943

84

Frames 89-90 & 91,

do.

July 19, 1943

85

Frames 92-93-94,

do.

July 30, 1943

86

Frames 95-96 & 97,

do.

Aug. 2, 1943

87

Frames 98-99 & 100,

do.

Aug. 17, 1943

88

Frames 101-102-103,

do.

do.

89

Frames 104-105 & 106,

do.

do.

90

Frames 108-109 & 111,

do.

Aug. 19, 1943

91

Frames 112-113-114 & 115,

do.

Aug. 18, 1943

92

Frames 116-117-118 & 119,

do.

do.

93

Frames 120-121-122-123 & 124,

do.
SS-419, 481 & 489

Jan. 20, 1943

94

Stern framing,

do.
SS-417-424

Nov. 4, 1943

95-96

Modification to stern framing,

do.
SSR-481

April 2, 1948

97-98

Superstructure frames 17 to 19 incl.,

SSR-419

Sept. 30, 1948

99

Superstructure frames 20 to 23 incl.,

do.

Oct. 1, 1948

100

Superstructure frames 24 to 31 incl.,

do.

Oct. 11, 1948

101-102

Superstructure frames 32 to 43 incl.,

do.

Oct. 1, 1948

103-104

Superstructure frames 44 to 55 incl.,

do.

Sept. 30, 1948

105-106

Superstructure frames 56 to 67 incl.,

do.

Oct. 15, 1948

107-108

Superstructure frames 68 to 79 incl.,

do.

Oct. 12, 1948

109-110

Superstructure frames 80 to 91 incl.,

do.

Oct. 20, 1948

111-112

Superstructure frames 92 to 109 incl.,

do.

Oct. 16, 1948

113-114

Superstructure frames 110 to 124 incl.,

do.

Oct. 12, 1948

115

Compartment & access,

do.
SSR-481 & 489

July 19, 1948

116-118

Compartments & tanks,

do.

July 16, 1948

119

Compartments & tanks,

Naval Shipyard
Portsmouth, N.H.
SSR-419

Aug. 13, 1948

120

Towing fairlead,

do.
SS-417-424

Nov. 9, 1943

121

Life lines plan,

do.
SSR-419

Oct. 27, 1948

122-123

Modification of life lines,

do.
SSR-481

July 8, 1948

124-125

Propeller guards,

do.
SSR-419

Aug. 27, 1948

126-127

Protectors-zinc,

do.
SS-475-490

Dec. 1, 1943

128

Main deck wood-forward,

do.
SSR-419

Nov. 3, 1948

129-130

Main deck wood-aft,

do.

do.

131-132

Modifications to superstructure dk.

do.
SSR-481 & 489

July 23, 1948

133

Torpedo loading hatches,

do.
SSR-419

Mar. 5, 1948

134=135

Relocation of escape hatch in after
space,

do.

Aug. 27, 1948

136-137

W.T. door for=d escape trunk inboard
closing device, arrangement,

do.
SS-475

Dec. 27, 1943

138

Ladder on snorkel support,

Naval Shipyard
Portsmouth, N.H.
SSR-419

Oct. 14, 1948

139

Ladders & grabs,

do.
SS-417

Nov. 26, 1943

140-142

Ladders & grabs in engine rooms
& motor room,

do.

Mar. 12, 1943

143

Modification of ladders,

do.
SSR-419

Nov. 18, 1948

144-145

do.

do.
SSR-481 & 489

May 18, 1948

146-147

Jacob=s ladder, 3 strand rope,

do.
SSR-488 & 489

Sept. 26, 1945

148

For=d. Escape trunk, structure,

do.
SS-395

Oct. 4, 1943

149

Escape arrangements,

do.
SSR-419

July, 13, 1949

150

Windless & capstan, general
arrangement,

do.
SS-417-424

Feb. 7, 1943

151-152

Bow diving gear, plane details,

do.
SSR-481 & 489

-

153-154

Stern diving gear, plane details,

do.
SS-417-424

Jan. 21, 1943

155-156

Bow diving gear, plane details, welded
type,

do.

Sept. 14, 1943

157-158

Steering gear, arrangement aft,

Naval Shipyard
Portsmouth, N.H.
SS-417-424

April 26, 1944

159-161

Snorkel support, portable housings for
hyd. piping,

-

Sept. 1, 1948

162

Foundation for snorkel support,

do.
SSR-419

May 25, 1948

163-165

SR-2 antenna mast shield and
modification of mess table,

do.
SSR-481 & 489

do.

166

F=d=n. For support for SR-2 antenna
mast,

do.

May 3, 1948

167-168

Foundations for supports for
periscopes and SJ or SS radar,

do.
SS-417

July 19, 1944

169-170

F=d=n. For support fdor SV-2 ant.
Mast,

do.
SSR-419

May 28, 1948

171

Foundations for supports for
periscopes and SV radar mast,

do.

Jan. 2, 1948

172-173

Model SV radar mast support,

-

Feb. 20, 1947

174

Foundations for supports for
periscopes & SV radar mast,

do.
SS-487

Feb. 22, 1947

175-176

F=d=n. & support for YE antenna,

do.
SSR-481 & 489

May 25, 1948

177-178

Foundation for YE antenna gear and
synchro case,

do.

Aug. 20, 1948

179

Stirrup type access ladders main deck
to after end of bridge,

do.
SS-416, 484 & 489

June 1, 1945

180

Modification of conning tower
fairwater and bridge,

Naval Shipyard
Portsmouth, N.H.
SSR-419

Nov. 17, 1948

181-183

Conning tower fairwater & bridge,
elevation & plans,

do.
SS-475-494

Nov. 23, 1943

184-185

Modification of conning tower
fairwater and bridge,

do.
SSR-481 & 489

-

186-187

Conning tower arrangement,

do.

May 21, 1948

188-189

Seats & platforms on bridge deck,

do.
SSR-419

Dec. 16, 1948

190-191

Bridge, arrangement,

do.

Sept. 30, 1948

192-194

do.,

do.
SSR-481 & 489

June 22, 1948

195-197

Periscope (nvd) & dual antenna,
general arrangement,

do.

-

198-199

Control room, arrangement,

do.
SSR-419

Jan. 27, 1948

200-203

Bulkheads non-structural, officers &
c.p.o. quarters,

do.
SS-393

Nov. 3, 1943

204-205

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