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USS Nevada Utah Beach

USS Nevada firing at Utah beach

Notes on data below:

  • Naval assets can only be directed by a forward observer. Delivery is still slow, so naval fire is best used for pre-planned fire or via TRP, which makes a big difference
  • Naval assets fire in salvos/broadsides based on their number of guns.
  • Mission stats calculated by firing for Maximum duration until rounds complete. This gives the cyclical average rate of fire. As stated though generally salvos are fired so shells arrive in a relatively close group, then pause depending on RoF until next salvo arrives. However at heavy RoF for DD for example the actual salvos seem pretty continuous! If the rounds per min is less than salvo size likely there will be at least a minute gap between salvos.
  • Duration stats again reflect the salvo characteristics. On anything more than Harass RoF and Maximum Duration then most fire missions will be over in under 1-2mins. For a longer fire mission (given the relatively long delay to set up) then maybe a good idea to call Harass/Short RoF for maximum duration and then ceasefire when you feel the enemy has a big enough headache. Beware Heavy/maximum as all rounds will be expended in 3-4mins (though that will be impressive boost to friendly forces morale! popcorn anyone?)
  • Ships are cruising several miles offshore. Thus, even in pre-prepared missions add about 30 seconds of flight time for rounds to land on target.
  • If you select point target on a building once it is destroyed the mission will cease fire. Even 14in doesn't seem to breach hedgerows though...
  • Beware friendly forces safety distances for the heavy stuff. BB shells particularly have a danger area of at least 150m to troops in the open and drop shorts do happen...
  • Ships names included for scenario building purposes. DD List not complete I think but CL, CA, BB are complete for USN although some other RN ships provided support from time to time.

Ship Data Edit

5in Destroyer DD

5 x 127mm guns 260 shells 52 salvos

USS McCook, USS Fitch, USS Hobson, USS Plunkett & USS Carmick

(other similar DD off Normandy - USS Butler, USS Emmons, USS Corry (sunk D--Day) - 4x5in / 'USS Laffey, USS O'Brien & USS Barton - 6x5in)

Mission (Rate of Fire)

Harass

10-12 rnds/min

max 25 mins sustained

Short

25-30 rnds/min

max 10 mins sustained

Medium

35-40 rnds/min

max 7 mins sustained

Heavy

70-80 rnds/min

max 3.5 mins sustained

Duration

Quick

1 salvo

5 shells

Short

1-2 salvos

5-10 shells

Medium

3-4 salvos

15-20 shells

Long

5-6 salvos

25-30 shells

Maximum

52 salvos

260 shells


6in Cruiser CL

12 x 152mm guns 300 shells 25 salvos

No USN 6in Cruiser's operated off Normandy. Royal Navy support of this size provided by HMS Glasgow & HMS Mauritius

Mission (Rate of Fire)

Harass

20-25 rnds/min

max 13 mins sustained

Short

30-35 rnds/min

max 9 mins sustained

Medium

50-55 rnds/min

max 6 mins sustained

Heavy

95-105 rnds/min

max 3 mins sustained

Duration

Quick

1 salvo

12 shells

Short

1-2 salvos

12-24 shells

Medium

1-2 salvos

12-24 shells

Long

2-3 salvos

24-36 shells

Maximum

25 salvos

300 shells


8in Heavy Cruiser CA

9 x 203mm guns 153 shells 17 salvos

USS Quincy, USS Augusta, USS Tuscaloosa, Montcalm (French), Georges Leygues (French)

Mission (Rate of Fire)

Harass

8-9 rnds/min

max 18 mins sustained

Short

12-15 rnds/min

max 12 mins sustained

Medium

18-21 rnds/min

max 8 mins sustained

Heavy

35-40 rnds/min

max 4 mins sustained

Duration

Quick

1 salvo

9 shells

Short

1-2 salvos

9-18 shells

Medium

1-2 salvos

9-18 shells

Long

2-3 salvos

18-36 shells

Maximum

17 salvos

153 shells


12in Battleship BB

12 x 305mm guns 84 shells 7 salvos

USS Arkansas

Mission (Rate of Fire)

Harass

6-7 rnds/min

max 13 mins sustained

Short

9-10 rnds/min

max 9 mins sustained

Medium

13-15 rnds/min

max 6 mins sustained

Heavy

25-30 rnds/min

max 3 mins sustained

Duration

Quick

1 salvo

12 shells

Short

1-2 salvos

12-24 shells

Medium

3-4 salvos

12-24 shells

Long

5-6 salvos

24-36 shells

Maximum

7 salvos

84 shells


14in Battleship BB

10 x 356mm guns 70 shells 7 salvos (Available June 1944 only)

USS Texas & USS Nevada

Mission (Rate of Fire)

Harass

3-4 rnds/min

max 18 mins sustained

Short

5-6 rnds/min

max 12 mins sustained

Medium

8-9 rnds/min

max 8 mins sustained

Heavy

16-19 rnds/min

max 4 mins sustained

Duration

Quick

1 salvo

10 shells

Short

1-2 salvos

10-20 shells

Medium

3-4 salvos

10-20 shells

Long

5-6 salvos

20-30 shells

Maximum

7 salvos

70 shells


SUMMARY REFERENCE TABLE


NAVAL SUPPORT

5in DD

6in CL

8in CA

12in BB

14in BB

Calibre

127mm

152mm

203mm

305mm

356mm

Guns

5

12

9

14

10

Shells

260

300

153

84

70

Mission

Harass rnds/min

rnds/min

10-12

20-25

8-9

6-7

3-4

Max

25min

13min

18min

13min

18min

Short rnds/min

rnds/min

25-30

30-35

12-15

9-10

5-6

Max

10min

9min

12min

9min

12min

Medium rnds/min

rnds/min

35-40

55-60

18-21

13-15

8-9

Max

7mins

6mins

8min

6min

8min

Heavy rnds/min

rnds/min

70-80

95-105

35-40

25-30

16-19

Max

3.5min

3min

4min

3min

4min

Duration

Quick

shells

5

12

9

12

10

Short

shells

5-10

12-24

9-18

12-24

10-20

Medium

shells

15-20

12-24

9-18

12-24

10-20

Long

shells

25-30

24-36

18-36

24-36

20-30

Maximum

shells

260

300

153

84

70