Monday 23 October 2017

American Projectiles and Explosives - 6-inch Projectiles (Part 2)







American Projectiles and Explosives



6-inch Projectiles





6-inch H.C., W.P., Illuminating, and Window Mk 39 Mod 0


Guns used in: 6"/47 Dual-Purpose
Overall length w/ nose fuze: 30 inches
Overall length w/o nose fuze: 26.28 inches
Diameter of base: 5.985 inches
Distance base to band: 1 inch
Width of band: 2.5 inches
Diameter at bourrelet: 5.985 inches

Filling: Explosive D
Weight of filling: 14.09 pounds
Weight of loaded projectile: 105 pounds
Charge/Weight ratio: N/A

Cartridge case: Mk 4
Primer: Mk 13 and all Mods
Tracer: Mk 5, Mods 0 and 1

Fuzes:
-Nose: Mk 28 Mods 0 and 1

-Nose: Mk 25 (M.T.F.)
-Mk 30 (P.D.F.)
-Mk 47 (V.T.F.)

Auxiliary Detonating Fuze
-Mk 43
-Mk 44 (with V.T.F.)


This is the H.C. round designed for the new 6"/47 dual-purpose gun.  It is a half-caliber longer than the 6-inch H.C. Projectile Mk 34, and will be adaptable for loading of H.C., W.P., Illuminating, or Window fillers.







6-inch Illuminating Mk 22 Mod 1 (Obsolete)


Guns used in: 6"/47 (bag), 6"/50 (bag), 6"/53 (bag)
Overall length w/ nose fuze: 23.027 inches
Overall length w/o nose fuze: 18.697 inches
Diameter of base: 5.94 inches
Distance base to band: 2.35 inches
Width of band: 2.5 inches
Diameter at bourrelet: 5.985 inches

Filling: Black Powder expelling charge; magnesium flare
Weight of filling: Expelling charge is 3.5 ounces
Weight of loaded projectile: 95.4 pounds
Charge/Weight ratio: N/A

Cartridge case: N/A
Primer: Mk 15 Mod 1
Tracer: N/A

Fuzes:
-Nose: Mk 63 Mod 0
-Mk 18 Mods 2, 3, and 4
-Mk 50 and all Mods


The Nose Fuze Mk 50 is authorized for assembly in this projectile only when used in the 6"/53 bag gun.

The Illuminating Contents Mk 3 are used in this round.






6-inch Illuminating Mk 23 Mods 1 and 2

No picture available

Guns used in: 6"/47 (bag), 6"/50 (bag), 6"/53 (bag)
Overall length w/ nose fuze: 23.027 inches
Overall length w/o nose fuze: 18.697 inches
Diameter of base: 5.94 inches
Distance base to band: 2.35 inches
Width of band: 2.5 inches
Diameter at bourrelet: 5.985 inches

Filling: Black Powder expelling charge; magnesium flare
Weight of filling: Expelling charge is 3.5 ounces
Weight of loaded projectile: 96 pounds
Charge/Weight ratio: N/A

Cartridge case: N/A
Primer: Mk 15 Mod 1
Tracer: N/A

Fuzes:
-Nose: Mk 63 Mod 0
-Mk 18 Mods 2, 3, and 4
-Mk 50 and all Mods


The Nose Fuze Mk 50 and Mk 63 are authorized for assembly in this projectile only when used in the 6"/53 bag gun.

The Illuminating Contents Mk 3 are used.






6-inch Illuminating Mk 32 Mod 0

No picture available

Guns used in: 6"/47 (bag)
Overall length w/ nose fuze: 23.027 inches
Overall length w/o nose fuze: 19.517 inches
Diameter of base: 5.94 inches
Distance base to band: 2.05 inches
Width of band: 2.5 inches
Diameter at bourrelet: 5.985 inches

Filling: Black Powder expelling charge; magnesium flare
Weight of filling: Expelling charge is 3.5 ounces
Weight of loaded projectile: 94.5 pounds
Charge/Weight ratio: N/A

Cartridge case: Mk 4
Primer: Mk 13 and all Mods
Tracer: N/A

Fuzes:
-Nose: Mk 63 Mod 0
-Mk 18 Mods 2, 3, and 4
-Mk 50 and all Mods


The Illuminating Contents Mk 4 Mod 6 are used in this projectile.






6-inch Illuminating Mk 38 Mod 0

No picture available

Guns used in: 6"/47 (case)
Overall length w/ nose fuze: 26.7 inches
Overall length w/o nose fuze: 23.225 inches
Diameter of base: 5.975 inches
Distance base to band: 1 inch
Width of band: 2.5 inches
Diameter at bourrelet: 5.985 inches

Filling: Black Powder expelling charge; magnesium flare
Weight of filling: N/A
Weight of loaded projectile: 105 pounds
Charge/Weight ratio: N/A

Cartridge case: Mk 4
Primer: Mk 13 and all Mods
Tracer: N/A

Fuzes:
-Nose: Mk 63 Mod 0
-Mk 18 Mods 2, 3, and 4
-Mk 50 and all Mods


This projectile was made to provide an illuminating projectile similar in ballistic traits to the 6" H.C. Projectile Mk 34.







6-inch Illuminating Mk 41 Mod 0


Guns used in: 6"/47 Dual-Purpose
Overall length: 30 inches
Overall length w/o nose fuze: 26.28 inches
Diameter of base: 5.975 inches
Distance base to band: 1 inch
Width of band: 2.5 inches
Diameter at bourrelet: 5.985 inches

Filling: Black Powder expelling charge; magnesium flare
Weight of filling: Expelling charge is 2.5 ounces
Weight of loaded projectile: 110 pounds
Charge/Weight ratio: N/A

Cartridge case: Mk 4
Primer: Mk 13, all Mods
Tracer: N/A

Fuzes:
-Nose: Mk 25 (M.T.F.)


The Illuminating Contents Mk 4 Mod 6 are used in this projectile.







6-inch Target Mk 36 Mods 1, 2, and 3

No picture available

Guns used in: 6"/47 (case)
Overall length: 27 inches
Diameter of base: 5.985 inches
Distance base to band: 1 inch
Width of band: 2.5 inches
Diameter at bourrelet: 5.985 inches

Filling: N/A
Weight of filling: N/A
Weight of loaded projectile: 130 pounds
Charge/Weight ratio: N/A

Cartridge case: Mk 4
Primer: Mk 13 and all Mods
Tracer: Mk 5 Mod 1

Fuzes: N/A


This projectile has no spotting dye loaded in the windshield.

The different modifications are to distinguish between manufacturers.






6-inch Target Mk 37 Mod 1


The only difference between this projectile and the 6-inch Mk 36 target round is that the Mk 37 has provision for a spotting dye load.





Next Time: 7-inch Projectiles

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