The Cargo variant of the MRK DM has no seats. Actually, it's not designed for you to seat inside at all, since this variant is only meant to carry cargo around. Like the baseline version, it's said to be reusable, but the flying guinea-pigs might have their own view on that. You could strip-off the escape tower, but the blunt nose of the capsule may not be very helpfull while passing Max-Q...

Like the others variants of the MRK, you can add any of the 3 Service Modules to it: the Rescue, if you just want to deorbit, the Extended, if you need to send that tin can far away or the Cargo, if you're not good at Tetris (in that case, you might want some extra storage room. Warning: the Cargo SM is not pressurized !)

Build Guide

• MRK Launch Escape System - MRK
• ECBM (for MRK) - Cover
• Descent Module
  • Multi-Role Cargo Kapsule DM
• 2x MRk-1c Parachutes
• MRK-2b Heatshield

Service Modules

The Service Modules are fitted with everything that your capsule ever wanted: propulsion systems, cargo space, extra supplies, power unit, communication hardware... The MRK comes with 3 different SMs, each having a particular purpose.

Rescue SM

The Rescue Service Module is the baseline SM for the MRK lifeboat. This SM comes with attachement for two RCS thrusters, an antenna and a solar panel. It's also fitted with solid fuel Separatrons.

Build Guide

• Multi-Role Kapsule Rescue SM
  • 2x 90° MRK-6f Thrusters
  • MRK-5a Antenna
  • MRK-3a Solar Panel

Cargo SM

This Cargo SM is a larger version of the MRK SM, featuring a wide enough cargo bay to fit your small sats inside. However, be aware that this cargo bay is unpressurized. Try not to store some living beings in there... It also comes with a convenient amount of monoprop. to feed your orbital maneuvering engines - the ones you nearly forgot to add before leaving. The solar panels are now mounted either sides.

Build Guide

• Multi-Role Kapsule Cargo SM
  • 2x 90° MRK-6f Thrusters
  • MRK-5a Antenna
  • 2x MRK-3b Solar Panel
• L-07 "Racoon" Service Module
• K-0625 "Pingu" EndCap

Extended SM

The Extended SM is the more capable of the SMs variants. It's mainly based on the Cargo one, but some engineer figured out that this useless room inside would be more useful once full of propellant. You may now be able to reach the stars... or at least the Mun.

Build Guide

• Multi-Role Kapsule Extended SM
  • 2x 90° MRK-6f Thrusters
  • MRK-5a Antenna
  • 2x MRK-3b Solar Panel
• HM4 "Themis" Cryogenic Engine

User guide

• The DMs and SMs are usually combined this way: Recovery DM with Rescue SM, Classic DM with Extended SM and Cargo DM with Cargo SM.

• Obviously, feel free to recombine them as you want. There will hopefully be no compatibility problems.