Build ships without retooling shipyard

[Barkhorn (OP)]

How can I design my ships such that I can build more than one kind at a single shipyard without retooling it?

I know I can look in the DAC tab and see the refit cost, and if said cost is 0 I can build both ships at the same yard, but what affects the refit cost?

[Erik L]

If the refit cost is within 10 or 20% you can refit without retooling.

[Barkhorn (OP)]

So how do I ensure I have a low refit cost?  Just use most of the same parts, and have a similar tonnage?

[papent]

So how do I ensure I have a low refit cost?  Just use most of the same parts, and have a similar tonnage?

Both

[Brian Neumann]

Also most of the time if you just scale a ship up using the same parts you will be able to build the smaller ship at the bigger shipyard.  For example if my cruiser is built using all the same parts as my destroyer, just being two to three times as big then I usually can build the destroyer on the same shipyard as the cruiser.  As long as all of the parts on the destroyer are on the cruiser this works.  It does not work in reverse.

Brian

[JacenHan]

Replacing a cargo hold with 10 cryogenic storage units allows freighters to be built at a shipyard tooled for the colony ship. Example:

Code: [Select]

Mule III-F class Freighter    73,350 tons     310 Crew     1413 BP      TCS 1467  TH 3200  EM 0
2181 km/s     Armour 1-156     Shields 0-0     Sensors 1/1/0/0     Damage Control Rating 1     PPV 0
MSP 12    Max Repair 100 MSP
Intended Deployment Time: 12 months    Spare Berths 0   
Cargo 50000    Cargo Handling Multiplier 45   

Aguon Incorporated C400 MagPlas Drive (8)    Power 400    Fuel Use 5.3%    Signature 400    Exp 5%
Fuel Capacity 815,000 Litres    Range 37.7 billion km   (200 days at full power)

This design is classed as a Commercial Vessel for maintenance purposes
This can be built at a shipyard tooled for this colony ship:

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Mule III-C class Colony Ship    73,350 tons     470 Crew     3366 BP      TCS 1467  TH 3200  EM 0
2181 km/s     Armour 1-156     Shields 0-0     Sensors 1/1/0/0     Damage Control Rating 1     PPV 0
MSP 29    Max Repair 100 MSP
Intended Deployment Time: 12 months    Spare Berths 1   
Cryogenic Berths 200000    Cargo Handling Multiplier 30   

Aguon Incorporated C400 MagPlas Drive (8)    Power 400    Fuel Use 5.3%    Signature 400    Exp 5%
Fuel Capacity 745,000 Litres    Range 34.5 billion km   (183 days at full power)

This design is classed as a Commercial Vessel for maintenance purposes
Unfortunately, the same does not apply for geological-gravitational survey sensors.