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Updated Gun List

Optional rules for Sky Galleons of Mars

Here is a compilation of Sky Galleons of Mars weapon lists from a number of sources, intended to be as complete as possible. In addition, a number of new weapons are included here, and some modifications to the weapons have been made in these tables for the purpose of play balance.

Contents - Weapons Tables

MODERN BREECH-LOADING GUNS (L)
OLD (O) or SHORT (S) LOW-POWERED RIFLED GUNS
RIFLED HOWITZERS
QUICK-FIRING (QF) MACHINE CANNON
MACHINEGUNS (MG)
DUAL-MOUNTED MACHINEGUNS (D)
EXOTIC NAVAL GUNS (EUROPEAN)
EXOTIC NAVAL WEAPONS (EUROPEAN)
OLD EARTH SMOOTHBORE (SB) GUNS
OLD EARTH SMOOTHBORE CARRONADES
MARTIAN GUNS
SMOOTHBORE HOWITZERS AND MORTARS
TORSION WEAPONS (T)
EXOTIC NAVAL GUNS (MARTIAN)
EXOTIC NAVAL WEAPONS (MARTIAN)
INVENTED WEAPONS

Changes

A few noteworthy changes have been made to these lists for the sake of play balance. Perhaps the most important ones have to do with the damage levels of guns.

Damage Values
It never really seemed right to me that a 24-pounder gun would do only twice the damage of a 1-pounder gun. As it stands, the most effective design method is to pile machine cannon upon machine cannon on your ship; they have a very high ratio of damage to weight. Likewise, the 6" Long gun is radically more effective than other rifled guns, in terms of damage to weight ratio; even the 4.7"QF has the same ratio, though it is supposedly more modern than the 6" Long, and it also has less range and penetration.

Originally I had thought to lower the damage value of the 6", but that would not have addressed the dameage discrepancy between machine cannons and regular cannons. So, instead, I raised the damage value for all rifled guns between a 12-pounder (3") and the 5" Long by one point. This gives the Aphid's 4"S gun a little punch, and makes even the 3" gun seem attractive. Machine cannons are still the most effective damage dealers against unarmored targets, but their advantage is drastically reduced.

Weight Changes
Also, considering the weight restrictions of using large-bore weapons, a weapon that weighs twice as much as another weapon ought to be about twice as effective. However, the value of a large-bore weapon (i.e. above 6") drops off radically instead of improving. Why? For example, under the original rules, an 8" gun weighed 300 tons, had a ROF of (1), and a damage rating of 8. In other words, firing every other round, the average damage per round dealt by an 8" gun is four. Meanwhile, since a 6" gun weighs only 100 tons, three of these weapons could be installed in place of a single eight inch gun. And since the damage value of a 6" gun is 6, and they fire every round, the average damage per round of these weapons put togeter is 18, over four times the value of the single 8" gun. Which would you choose for your ship?

Therefore, I have decreased the weight of all of those rifled guns larger than 6", on the grounds that they are far too weak otherwise. The other options would have been to increase the Damage Values, or to increase the ROF.

Range
Under the original rules, the Martian Light gun provides about a quarter the value of a Heavy Gun per ton. Though it weighs half as much, it does half the damage, has half the range, and half the penetration of a Heavy gun. The Light is such a weak weapon that it is hard to imagine Martian ship designers considering it useful at all.

Nevertheless it makes good sense to have a weapon that is smaller that the gun that is referred to as "Heavy". In order to make the Light more attractive, I have extended the range of the Light gun to 2/3, which makes it's performance the same as a 9-pounder smoothbore gun. I then rearranged the weights of Earth smoothbore guns so that they matched their Martian counterparts.

Rate of Fire
The Rate of Fire for Gatling weapons has been adjusted downward, to reflect the fact that even though they are an older and less reliable technology than the Navy-standard Nordenfelt, their value under the original rules was greater than that of the Nordenfelt. If a ship carries three Nordenfelts, try carrying five .50 calibre Gatlings instead. The total weight and base rate of fire is the same, with the added advantage of the higher rate of fire for really intense moments. Also, this gives you five crewmen instead of three.

Thus the .50 calibre Gatling's ROF has been reduced to 2/4, to reflect this fact. Likewise, the 1" Gatling's ROF has also been reduced to 2/4, as the heavier version is hardly likely to fire faster than the lighter version.

Likewise the Maxim gun has been given a low/high ROF, to balance the value of it somewhat. While the Maxim was less prone to jamming that most crank-powered machineguns, nevertheless jams did happen. However, to reflect this, at the high rate of fire the Maxim needs to roll two 1's on the dice to cause a jam, rather than the normal single 1 roll.

Penetration
Rather than have two listings for Penetration (one for short range and one for long), the original game had just one rating. Instead of having two separate ratings, it is much simpler to double the armour rating of a target for all weapons fired at long range. Remember that for the purposes of armour, a rating of zero is considered to be half of a rating of one, and double the armor rating of a vessel with a rating of zero produces a result of one.

Key

Contents - Weapons Tables

MODERN BREECH-LOADING GUNS (L)
OLD (O) or SHORT (S) LOW-POWERED RIFLED GUNS
RIFLED HOWITZERS
QUICK-FIRING (QF) MACHINE CANNON
MACHINEGUNS (MG)
DUAL-MOUNTED MACHINEGUNS (D)
EXOTIC NAVAL GUNS (EUROPEAN)
EXOTIC NAVAL WEAPONS (EUROPEAN)
OLD EARTH SMOOTHBORE (SB) GUNS
OLD EARTH SMOOTHBORE CARRONADES
MARTIAN GUNS
SMOOTHBORE HOWITZERS AND MORTARS
TORSION WEAPONS (T)
EXOTIC NAVAL GUNS (MARTIAN)
EXOTIC NAVAL WEAPONS (MARTIAN)
INVENTED WEAPONS

Weapons Tables

 
MODERN BREECH-LOADING GUNS (L)
Weapon Notation Weight Pen DV Reload ROF Trv Crew Range (E) Cost
12" 12" 300 12 12 8 (1) -1 5 8/16 (36) 9000
10" 10" 220 10 10 7 (1) -1 4 7/14 (28) 6000
8" 8" 150 8 8 6 (1) 0 3 6/12 (20) 3000
7" 7" 120 7 7 5 (1) 0 3 6/12 (16) 2000
6" 6" 100 5 6 4 1 0 2 5/10 1000
5" 5" 80 4 5 4 1 0 2 5/10 800
4.7" (long)4.7"L 60 4 4 4 1 0 2 5/10 600
4.7" QF 4.7"QF 100 4 4 2 2 1 2 4/8 1000
4" (long) 4"L 40 3 3 4 1 1 2 4/8400
3" (15-pdr) 3"L 25 2 2 4 1 1 2 4/8250
2-pdr 2p 5 1 1 3 1 3 2 2/4100
 
OLD (O) or SHORT (S) LOW-POWERED RIFLED GUNS
Weapon Notation Weight Pen DV Reload ROF Trv Crew Range (E) Cost
10" 10"S 180 7 10 7 (1) 0 4 5/10 (18) 6000
9" 9"S 150 6 9 6 (1) 0 3 5/10 (16) 3000
8" 8"S 120 5 8 6 (1) 0 3 5/10 (14) 2000
7" 7"S 100 4 7 6 (1) 0 3 5/10 (12) 1000
6" 6"o 80 4 6 5 (1) 0 2 4/8 800
5" 5"o 60 3 5 4 1 1 2 4/8 700
4.7" (40-pdr) 40p 50 3 4 4 1 1 2 4/8 600
4" (short, 20-pdr) 4"S 30 2 3 4 1 1 2 3/6 300
3" (12-pdr) 3"S 20 1 2 4 1 2 2 3/6 240
9-pdr 9p 10 1 1 3 1 2 2 3/6 220
2" (6-pdr) 2" 10 1 1 2 2 2 2 2/4 100
 
RIFLED HOWITZERS
Weapon Notation Weight Pen DV Reload ROF Trv Crew Range Cost
7" howitzer 7"H 100 1 7 4 1 -1 2 10 1000
6" howitzer 6"H 70 1 6 4 1 -1 2 8 800
5" howitzer 5"H 50 1 5 4 1 0 2 8 600
7-pdr MH MH 10 0 1 2 2 1 2 6 200
 
QUICK-FIRING (QF) MACHINE CANNON
Weapon Notation Weight Pen DV Reload Burst Trv Crew Range Cost
6-pdr HRC 6p 15 1 1 4 3 2 1 3/6 220
3-pdr HRC 3p 10 1 1 4 3 2 1 2/4 180
1-pdr HRC 1p 10 0 1 3 3 3 1 2/4 160
1-pdr Pom-Pom PP 10 0 1 4 4 3 1 2/4 250
1" Gatling 1"G 5 0 1 4 2/4 3 1 1/2 70
 
MACHINEGUNS (MG)
Weapon Notation Weight Pen DV Reload Burst Trv Crew Range Cost
0.5" Gatling .50 3 - P 4 2/4 3 1 1/2 40
Mitrailleuse M 5 - P 3 4 3 1 1/2 60
Nordenfelt 5-B NF 5 - P 4 5 3 1 1/2 100
Nordenfelt 3-B N3 3 - P 3 3 3 1 1/2 60
Nordenfelt 1-B* N1 0.5 - P 3 2 3 (1) 0/1 20
Gardner* G 1 - P 4 2/3 3 (1) 1/2 50
Maxim X 3 - P 4 3/6 3 1 1/2 150
 
DUAL-MOUNTED MACHINEGUNS (D)
Weapon Notation Weight Pen DV Reload Burst Trv Crew Range Cost
0.5" Gatling D50 5 - P 4 4/8 3 1 1/2 120
Maxim DX 5 - P 4 6/12 3 1 1/2 450
1" Gatling D1" 8 0 1 4 4/8 3 1 1/2 200
1-pdr HRC D1p 15 0 1 4 4/6 3 1 2/4 500
 
EXOTIC NAVAL GUNS (EUROPEAN)
Weapon Notation Weight Pen DV Reload ROF Trv Crew Range Cost
Hale Rockets D 5 0 1 - D6 0 (1) 4 50
Power Grapnel PG 20 - - 12 (2) 0 (2) 0/1 200
Water Cannon W 30 - W/P 4 1 0 3 0/1 50
Liquid Fire Cannon F 30 - F 4 1 0 3 0/1 500
Pole Mine PM5 V/3 2D6 - - - - 0 20
 
EXOTIC NAVAL WEAPONS (EUROPEAN)
Weapon Weight Pen DV Reload ROF TrvCrew Range Cost Requires
Hale Rockets (up) 5 0 1 - D60 (1) 4 50 Deck
Hale Rockets (down) 5 0 1 - D60 (1) 4 50 Hull
Tether Mine - 0 6 - - -- - 200 Deck
Drogue Torpedo 10 1 10 - -- - - 20 Hull
Spike Dropper 5 - P - D6 - -- 150 Hull
Sand Dropper 5 - W - D6 -- - 100 Hull
Liquid Fire 20 - F - D6 -- - 200 Hull
Liquid Fire Reload 10 - - - -- - - 50 Interior
Smutts Discharger 200 - - 8 (1) -(3) - 1000 -
Smutts Discharger + 100 - - 8 (1) -(3) - 3000 -
Smutts Torpedo - 1 4D6+T - - -- 30 500 Interior
Bomb Rack - - - - 1 - -- 50 Hull
Bomb 5 A 2D6 - - -- - 10 Interior
Cluster Bomb Rack - - - - D6 - -- 100 Hull
Cluster Bombs (x6) 5 A-1 1D3 - -- - - 20 Interior
Heavy Bomb Rack - - - - 1 -- - 100 Hull
Heavy Bomb 10 A+1 4D6 - - -- - 20 Interior
Naval Torpedo Rack - - - - 1 -- - 100 Hull
Naval Torpedo 10 6 4D6 - - -- 6 50 Interior
Bomb Bay (20) - - - all -- - 500 Hull
Bombadier's Position 5 - - - - -1 - 50 Hull
 
OLD EARTH SMOOTHBORE (SB) GUNS
Weapon Notation Weight Pen DV Reload ROF Trv Crew Range Cost (E) Cost (M)
15" 15"SB 300 4 9 11 (2) -1 4 4/8 6000 8000
11" 11"SB 150 3 6 7 (1) 0 3 3/6 3500 5000
10" 10"SB 80 2 4 5 1 0 3 2/4 2000 2500
68-pdr 68 80 2 3 5 1 0 2 3/6 1500 2000
9" 9"SB 60 1 3 4 1 0 2 2/4 1000 1200
42-pdr (Rogue) Rg 60 2 3 6 (1) 0 3 3/6 1000 1400
32-pdr 32 60 1 2 4 1 1 2 3/6 1000 1200
24-pdr (Heavy) H 40 1 2 4 1 1 2 2/4 800 900
12-pdr 12pSB 30 1 1 3 1 1 2 2/4 400 500
9-pdr (light)L 20 0 1 3 1 2 2 2/3 200 300
6-pdr 6pSB 15 0 1 3 1 2 2 1/2 100 200
4-pdr (shot) 4p 10 0 2 2 3 1 1/2 80 150
4-pdr (grapeshot) S 10 - P 2 2 3 1 0/1 80 150
 
OLD EARTH SMOOTHBORE CARRONADES (C)
Weapon Notation Weight Pen DV Reload ROF Trv Crew Range Cost (E) Cost (M)
68-pdr 68C 40 2 3 4 1 1 2 2/3 1000 1500
42-pdr 42C 30 1 3 4 1 1 2 1/2 800 1200
24-pdr 24C 20 1 2 4 1 1 2 1/2 600 900
12-pdr 12C 10 0 1 2 2 2 2 0/1 400 600
 
MARTIAN GUNS
Weapon Notation Weight Pen DV Reload ROF Trv Crew Range Cost (E) Cost (M)
Rogue Rg 60 2 3 6 (1) 0 3 3/6 - 2000
Heavy H 40 1 2 4 1 1 2 2/4 - 1000
Rod Gun Rd 30 3 1 6 (1) 1 2 3/6 - 800
Adams Gun
(Dr. Adams' Advanced Rod Gun)
A 30 4 1 6 (1) 1 2 4/8 - 2000
Light L 20 0 1 3 1 2 2 2/3 - 400
Sweeper S 10 - P 2 2 3 1 0/1 - 200
 
SMOOTHBORE HOWITZERS AND MORTARS
Weapon Notation Weight Pen DV Reload ROF Trv Crew Range Cost (E) Cost (M)
Lob Gun Lob 200 1 4+T 8 (1) -1 3 6 - 2000
Lob Gun - Lead Shot Lob* 200 2 6+T 10 (2) -1 3 6 - 4000
Lob Gun - Exploding Shot LE 200 2 8+T 10 (2) -1 3 6 - 6000
13" mortar 13"M 150 2 10 10 (2) -1 4 7 5000 8000
10" mortar 10"M 90 1 8 6 (1) -1 3 6 4000 5000
8" mortar 8"M 70 0 6 6 (1) -1 3 5 3000 3500
5.5" mortar 5.5"M 50 0 4 4 1 -1 2 4 2000 2500
32-pdr howitzer 32H 40 0 3 4 1 -1 2 4 1200 1500
24-pdr howitzer 24H 30 0 2 4 1 -1 2 3 600 800
12-pdr howitzer 12H 20 0 1 4 1 -1 2 3 300 500
 
TORSION WEAPONS (T)
Weapon Notation Weight Pen DV Reload ROF Trv Crew Range Cost
Trebuchet T 300 2 7 24 (5) -2 8 6 2500
200-Pounder Catapult 200T 120 1 4 12 (2) -1 6 2/4 1500
60-Pounder Catapult 60T 60 1 2 8 (1) -1 4 1/2 1000
20-Pounder Ballista 20T 30 0 1 6 (1) 0 2 1/2 500
Bolt Thrower B 15 - P 4 1 1 2 1/2 200
 
EXOTIC NAVAL GUNS (MARTIAN)
Weapon Notation Weight Pen DV Reload ROF Trv Crew Range Cost
Power Grapnel PG 20 - - 12 (2) 0 (2) 0/1 200
Liquid Fire Cannon F 30 - F 4 1 0 3 0/1 500
Pole Mine PM10 V/3 2D6 - - - - 0 20
 
EXOTIC NAVAL WEAPONS (MARTIAN)
Weapon Weight Pen DV Reload ROF Trv Crew Range Cost Requires
Tether Mine - 0 4 - - -- - 200 Deck
Drogue Torpedo 10 0 10 - - -- - 20 Hull
Spike Dropper 5 - P - D6 - -- 150 Hull
Sand Dropper 5 - W - D6 - -- 20 Hull
Liquid Fire 20 - F - D6 - - -200 Hull
Liquid Fire Reload 10 - - - - - -- 50 Interior
Screamer Rockets 10 1 1 - 1D6-1 -1 (1)3 50 Deck/Hull
Fire Blossom Rockets 10 - F - 1D6-1 -1 (1)3 200 Deck/Hull
 
INVENTED WEAPONS
Weapon Power Weight Pen DV Reload Burst Trv Crew Range Cost
Lightning Cannon 1 10 R R 6 (1) 1 1 R/2R 500
Freeze Ray 1 1 - W/P 4 3 3 (1) 0/1 200
Gravity Focus Ray R 10 - T 4 1 0 1 R/2R 1000
Heavy Rocket - 5 R 2D6 - 1 0 (2) R/2R 100
Electric Rail Gun (L) 3 100 3R 18 8 (1) -1 5 2R/4R 10000
Electric Rail Gun (S) 1 25 R 6 4 1 0 2 R/2R 4000
Electric Machinegun 1 5 - P 4 R+3 /2x(R+3) 3 1 1/2 1000
Thermal Heat Ray 6 5 0 R 4 3 1 1 R/2R 1000
Optical Heat Ray 1 20 0 R* 0* 1* 0 1 5R/10R 1000
Stun Beam 1 1 - P* 4 6 3 (1) 1/2 400
Ether Blaster 2 10 R/2 1 4 4/8 1 1 R/2R 2000
Sonic Cannon 1 10 * R 6 (1) 1 1 R/R 500
Motor Water Cannon 1 30 - W/P 4 R/2 1 2 1/2 200
Motor Flame Cannon 1 30 - F 4 R/2 1 2 1/2 1500
Reversible Bomb Rack - 5 - - 8 1 0 (2) 0 250
Reversible Cluster Rack - 5 - - 12 D6 0 (2) 0 300
Reversible Heavy Rack - 10 - - 12 1 0 (2) 0 500

Contents - Weapons Tables

MODERN BREECH-LOADING GUNS (L)
OLD (O) or SHORT (S) LOW-POWERED RIFLED GUNS
RIFLED HOWITZERS
QUICK-FIRING (QF) MACHINE CANNON
MACHINEGUNS (MG)
DUAL-MOUNTED MACHINEGUNS (D)
EXOTIC NAVAL GUNS (EUROPEAN)
EXOTIC NAVAL WEAPONS (EUROPEAN)
OLD EARTH SMOOTHBORE (SB) GUNS
OLD EARTH SMOOTHBORE CARRONADES
MARTIAN GUNS
SMOOTHBORE HOWITZERS AND MORTARS
TORSION WEAPONS (T)
EXOTIC NAVAL GUNS (MARTIAN)
EXOTIC NAVAL WEAPONS (MARTIAN)
INVENTED WEAPONS