Mayday Missiles Modified
Last Updated
2 April
2003.
OK, here they are: my (almost) complete house rules for missiles (pre-TNE).
It was an attempt to integrate THE LOT!! Sorry for the length of the thing, and I still need to post more design examples. Oh well, here goes...
Contents
- Summary of Components
- Detailed Components
- Design Examples
- Spreadsheet
- Bibliography
- Propulsion System
- Propulsion Assembly = Assembly Casing + Fuel Mass
- - continuous burn
- - limited burn
- - discretionary burn
- Guidance System
- 1. Controller
- 2. Sensors
- - radio receiver/radar sensor
- - IR sensor
- - mass sensor
- - neutrino sensor
- Detonation System
- Detonator
- - contact
- - proximity
- - intelligent
- - command
- Payload
- 1. Conventional Warheads
- - conventional HE
- - shaped conventional HE
- - non-conventional shaped explosive (NCSE)
- - improved non-conventional shaped explosive
- - TDX
- 2. Nuclear Warheads
- - blast-producing nuclear warheads
- - enhanced radiation nuclear warheads ("neutron bombs")
- 3. Non-Weapon Payloads
- - flare
- - probe (remote sensor)
- - message (sealed compartment)
- Internal Power
- Power Sources
- - batteries
- - fuel cell
- Standard turret missile container
a. Propulsion System
Propulsion Assembly = Mass of Assembly Casing + Fuel Mass.
|
Mass (kg) |
Price (Cr) |
| Continuous Burn |
Mc = G |
100 x Mc |
| Mf = T x G |
50 x Mf |
| Limited Burn |
Mc = 5 + G |
200 x Mc |
| Mf = T x G |
100 x Mf |
| Discretionary Burn |
Mc = 10 + G |
50 x G2 |
| Mf = 0.4 x T x G |
200 x Mf |
Mc = Mass of assembly casing; Mf = Mass of fuel;
G = G-rating required; B = Number of turns required
b. Guidance System
- Controller
| TL |
Mass (kg) |
Price (Cr) |
Power req'd (kWh) |
| 8 |
3 |
450 |
1.5 |
| 9 |
2 |
300 |
1.0 |
| 10+ |
1 |
250 |
0.5 |
- Sensors
- radio receiver/radar sensor
| TL |
Mass (kg) |
TL |
Mass (kg) |
| 8 |
1.3 |
12 |
0.7 |
| 9 |
1.2 |
13 |
0.6 |
| 10 |
1.0 |
14 |
0.5 |
| 11 |
0.85 |
15 |
0.4 |
All cost Cr 500, require 1.5 kWh, and have 500,000km range.
- IR sensor: TL 9, 1 kg, Cr 800, 1.5 kWh
- Mass sensor: TL 10, 1 kg, Cr 1000, 2 kWh
- Neutrino sensor: TL 11, 4 kg, Cr 1200, 5 kWh
c. Detonation System
Detonator:
- Contact Detonator: TL 5, 0.5 kg, Cr 100, nil power
- Proximity Detonator: TL 6, 1 kg, Cr 500, 0.5 kWh (can be countered by ECM)
- Intelligent Detonator: TL 8, 1.5 kg, Cr 1000, 1 kWh (works as per proximity, but not affected by ECM)
- Command Detonator: TL 6, 1 kg, Cr 200, 0.5 kWh (missile requires radio receiver)
d. Payload
- Conventional Warheads
| Type |
TL |
Mass (kg) |
Price (Cr) |
SE DM |
| Conventional HE |
5 |
40 |
400 |
0 |
| 7 |
27 |
270 |
0 |
| 9 |
20 |
200 |
0 |
| 11 |
16 |
160 |
0 |
| 13 |
14 |
140 |
0 |
| Shaped Conventional HE |
5 |
10 |
500 |
0 |
| Non-Conventional Shaped Explosive (NCSE) |
7 |
20 |
200 |
0 |
| Improved NCSE |
7 |
67 |
670 |
-1 |
| 9 |
50 |
500 |
-1 |
| 11 |
40 |
400 |
-1 |
| 13 |
34 |
340 |
-1 |
| TDX |
9 |
20 |
6000 |
-1 |
| 11 |
14 |
4200 |
-1 |
| 13 |
8 |
2400 |
-1 |
| 13 |
80 |
6000 |
-2 |
If using High Guard, each of these produce 1 Surface Effect (SE) hit, with Damage table DM's as shown.
- Nuclear Warheads
- - blast-producing nuclear warheads
-
| Type |
TL |
Yield (ktons) |
Price (Cr) |
SE DM's |
Rad DM's |
| Turret |
7 |
0.1 |
1,000 |
-2 |
+4 |
| 8 |
1 |
10,000 |
-3 |
+3 |
| 9 |
5 |
50,000 |
-4 |
+2 |
| 11 |
10 |
100,000 |
-5 |
+1 |
| 13* |
20 |
200,000 |
-6 |
0 |
| 15 |
50 |
500,000 |
-8 |
-1 |
| Bay |
6 |
100 |
1,000,000 |
-8 |
-2 |
| 7 |
250 |
2,500,000 |
-9 |
-2 |
| 9 |
500 |
5,000,000 |
-9 |
-3 |
| 11 |
750 |
7,500,000 |
-10 |
-3 |
| 13 |
1,000 (1 MT) |
10,000,000 |
-10 |
-4 |
| 15 |
2,500 |
25,000,000 |
-11 |
-4 |
*NOTE: the TL 13 turret warhead is the standard High Guard nuclear warhead
- - enhanced radiation nuclear warheads ("neutron bombs")
-
| Type |
TL |
Yield (ktons) |
Price (Cr) |
SE DM's |
Rad DM's |
| Turret |
7 |
0.1 |
1,500 |
+1 |
+2 |
| 8 |
1 |
10,500 |
+1 |
+1 |
| 9 |
5 |
50,000 |
0 |
0 |
| 10 |
5 |
75,000 |
-1 |
0 |
| 11 |
10 |
100,000 |
-1 |
-1 |
| 12 |
10 |
150,000 |
-1 |
-2 |
| 13 |
20 |
200,000 |
-2 |
-2 |
| 14 |
20 |
300,000 |
-2 |
-3 |
| 15 |
50 |
500,000 |
-2 |
-4 |
| Bay |
6 |
100 |
1,000,000 |
-3 |
-4 |
| 7 |
250 |
2,500,000 |
-3 |
-5 |
| 8 |
250 |
3,750,000 |
-3 |
-6 |
| 9 |
500 |
5,000,000 |
-4 |
-6 |
| 10 |
500 |
6,250,000 |
-4 |
-7 |
| 11 |
750 |
7,500,000 |
-4 |
-8 |
| 12 |
750 |
8,750,000 |
-5 |
-8 |
| 13 |
1000 (1 MT) |
10,000,000 |
-5 |
-9 |
| 14 |
1000 |
15,000,000 |
-5 |
-10 |
| 15 |
2500 |
25,000,000 |
-6 |
-10 |
Notes for all nukes:
- Turret warheads all fit in standard 15 cm missiles and weigh 15 kg;
- Bay warheads all fit in standard 25 cm missiles and weigh 60 kg;
- Bays may mount and fire turret missiles, if desired;
- The +6 DM for batteries under factor-9 still applies;
- The Surface Explosion (SE) DMs replace the normal High Guard -6 DM;
- The Radiation (Rad) DMs are new DMs for the Radiation Damage table;
- The Surface Explosion (SE) effect of the enhanced rad nukes is due to blast and "X-ray kill" (from "'Til they Glow", JTAS #22);
- For Striker, the required storage shielding is inbuilt into the ship's turrets and bays (or use the MegaTraveller shielding rules).
- Non-Weapon Payloads
- - flare: TL 6, 10 kg, Cr 500, duration 1 turn
- - probe (remote sensor): a probe must mount a radio, and a sensor package:
- a. Basic EMS: TL 8, 3.5 kg, Cr 2200, 4.5 kWh
- b. Active EMS: use MT rules
- Note: if using Digest Group's High Guard mods, use this rule:
- If a missile battery fires probe ordinance and it "penetrates", treat the combat step as if the attacker is at visual range for this round; ie. damage can be seen, internal explosions can be detected, BUT also spinal mounts CAN be used.
- - message (sealed compartment): TL 5, Cr 100 per 10 kg of cargo space
e. Internal Power
- Recommended minimum power is:
- - continuous burn: 2 turns (2000 secs/0.56 hours)
- - limited burn: 3 turns (3000 secs/0.83 hours)
- - discretionary burn: 5 turns (5000 secs/1.4 hours)
- Power Sources
- - batteries
| TL |
Storage (kWh/kg) |
Price (Cr/kg) |
| 8 |
0.35 |
325 |
| 9 |
0.625 |
375 |
| 10 |
0.75 |
525 |
| 11 |
0.875 |
675 |
| 12 |
1.0 |
850 |
| 13 |
3.0 |
3,000 |
| 14 |
4.0 |
5,000 |
| 15 |
7.0 |
10,000 |
- - optimised fuel cells (includes hydrogen + oxygen)
| Type |
TL |
Mass (kg) |
Price (Cr) |
Output (kWh) |
Fuel Cons (l/h) |
| Type A |
9 |
20 |
600 |
10 |
0.9 |
| 13 |
15 |
600 |
15 |
0.9 |
| 15 |
10 |
600 |
30 |
0.9 |
| Type B |
9 |
35 |
800 |
20 |
1.35 |
| 13 |
26 |
800 |
30 |
1.35 |
| 15 |
17.5 |
800 |
60 |
1.35 |
Each litre of fuel is 0.63 kg.
f. Standard turret missile container (turret only)
TL 6, 5 kg, price included as part of missile, holds a max 50 kg missile.
a. Advanced Civilian, TL 8 Turret Missile, 10G
- Propulsion System
Discretionary burn, 2 turns duration (allows for a 20 hex course change), required G-factor = 10
Mc = 10 + G = 10 + 10 = 20 kg
Cc = 50 x G^2 = 50 x 10^2 = Cr 5000
Mf = 0.4 x T x G = 0.4 x 2 x 10 = 8 kg
Cf = 200 x Mf = 200 x 8 = Cr 1600
- Guidance System
Controller TL 8 3.0 kg Cr 450 1.5 kWh
Radio TL 8 1.3 kg Cr 500 1.5 kWh
- Detonation System
Contact TL 5 0.5 kg Cr 100 nil
- Payload
Shap. conv. HE TL 5 10 kg Cr 500 nil
- Internal Power
Minimum duration = 3000 secs = 0.84 hours
Power drain = 1.5 + 1.5 = 3 kWh
Actual Power req'd = 3 x 0.84 = 2.52 kWh
Battery mass @ TL 8: 0.35 kWh/kg, 2.52/0.35 = 7.2 kg
Battery Price @ Cr 375/kg = 375 x 7.2 = Cr 2340
- Standard container
5 kg
- Totals:
Mass = 20 + 8 + 3 + 1.3 + 0.5 + 10 + 7.2 = 50 kg + 5 kg container
Price = 5000 + 1600 + 450 + 500 + 100 + 500 + 2340 = Cr 10,490
- Description:
Advanced Civilian turret missile, TL 8, 10G20 discretionary, contact detonation, radio receiver, HE warhead, 50 kg, Cr10,490
(Marketed by trendi.)
b. Advanced Civilian, TL 13 Turret Missile, short-range, 20G
- Propulsion System
Discretionary burn, 1 turns duration (allows for a 20 hex course change), required G-factor = 20
Mc = 10 + G = 10 + 20 = 30 kg
Cc = 50 x G^2 = 50 x 20^2 = Cr 20000
Mf = 0.4 x T x G = 0.4 x 1 x 20 = 8 kg
Cf = 200 x Mf = 200 x 8 = Cr 1600
- Guidance System
Controller TL 10 1.0 kg Cr 250 0.5 kWh
Radio TL 13 0.6 kg Cr 500 1.5 kWh
- Detonation System
Contact TL 5 0.5 kg Cr 100 nil
Command TL 6 1.0 kg Cr 200 0.5 kWh
- Payload
TDX TL 13 8 kg Cr 2400 nil
- Internal Power
Minimum duration = 2000 secs = 0.56 hours
Power drain = 0.5 + 1.5 + 0.5 = 2.5 kWh
Actual Power req'd = 2.5 x 0.56 = 1.4 kWh
Battery mass @ TL 13: 3 kWh/kg, 1.4/3 = 0.47 kg
Battery Price @ Cr 3000/kg = 3000 x 0.47 = Cr 1410
- Standard container
5 kg
- Totals:
Mass = 30 + 8 + 1.4 + 1.5 + 8 + 0.47 = 49.37 kg + 5 kg container
Price = 20000 + 1600 + 750 + 300 + 2400 + 1410 = Cr 26,460
- Description:
"Sprint", Advanced Civilian turret missile, TL 13, 20G20 discretionary, contact/command detonation, radio receiver, TDX warhead, 50 kg, Cr26,460
(Marketed by trendi.)
c. Advanced Naval, TL 15 Bay Missile, 20G
- Propulsion System
Discretionary burn, 5 turns duration (allows for a 100 hex course change), required G-factor = 20
Mc = 10 + G = 10 + 20 = 30 kg
Cc = 50 x G^2 = 50 x 20^2 = Cr 20000
Mf = 0.4 x T x G = 0.4 x 5 x 20 = 40 kg
Cf = 200 x Mf = 200 x 40 = Cr 8000
- Guidance System
Controller TL 10 1.0 kg Cr 250 0.5 kWh
Radio TL 15 0.4 kg Cr 500 1.5 kWh
IR Sensor TL 9 1.0 kg Cr 800 1.5 kWh
Mass Sensor TL 10 1.0 kg Cr 1000 2.0 kWh
Neut Sensor TL 11 4.0 kg Cr 1200 5.0 kWh
- Detonation System
Contact TL 5 0.5 kg Cr 100 nil
Intell TL 8 1.5 kg Cr 1000 1.0 kWh
Command TL 6 1.0 kg Cr 200 0.5 kWh
- Payload
Nuclear warhead TL 15 15 kg Cr 500000 nil
- Internal Power
Minimum duration = 5000 secs = 1.4 hours
Power drain = 10.5 + 1.5 = 12.0 kWh
Actual Power req'd = 12.0 x 1.4 = 16.8 kWh
Battery mass @ TL 15: 7 kWh/kg, 16.8/7 = 2.4 kg
Battery Price @ Cr 10000/kg = 10000 x 2.4 = Cr 24000
- Totals:
Mass = 30 + 40 + 7.4 + 3 + 15 + 2.4 = 97.8 kg
Price = 20000 + 8000 + 3750 + 1300 + 500000 + 24000 = Cr 557,050
- Description:
"Bolt", Advanced naval bay missile, TL 15, 20G100 discretionary, contact/intel/command detonation, radio receiver, IR/mass/neutrino sensors, 50kT nuclear warhead, 100 kg, Cr557,050
(Marketed by trendi.)
Here is a spreadsheet based on Mayday Missiles Modified (23 KB, Excel 4.0 format).
- Book 2: Starships, GDW, 1981.
- Book 5: High Guard, GDW, 1980.
- Book 8: Robots, GDW, 1986.
- Mayday!, boxed game, GDW, 1980.
- Striker!, boxed game, GDW, 1981.
- Grand Survey, Digest Group Publications, 1986.
- MILLER, Marc, "Missiles in Traveller, Special Supplement #3", Journal of the
Traveller's Aid Society #21, central pages, GDW, 1985.
- CUMBER, James, "'Til They Glow", JTAS #22, pp 6-8, 44, and JTAS #23, p 11, GDW, 1985.
- CUMBER, James, "Spinal Mounts Revisited", JTAS #20, pp 42-44 only, GDW, 1984.
- GUATNEY, Leroy W., "Ref's Notes: High Guard and TCS Campaigns", JTAS #24, pp 30-31 only, GDW, 1985.
- THOMAS, Gary L. and FUGATE, Joe, "Sensors in Starship Combat" and other extracts from "The Fourth Imperium", Traveller's Digest #7, pp 23-26 and Traveller's Digest #8, p 43, Digest Group Publications, 1986.
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