Kerbin Space Port: playing with freighters, and a place to park them

In the previous entry, there is a new class of vessel shown. This vessel is designed to haul ore inside a planet SOI.

Some new classes of vessels for freight hauling
Whereas before I was using an ore tank pushed by a nuclear transfer stage, this new class of vessel is specifically designed for the ore hauling task.
The ore tanks are part of the vessel body, and one big advantage is the better balance of RCS ports making docking much easier than with the previous setup.
Also with 16 Nerv engines instead of 4 or 6, burn duration are more reasonable. For example getting into LKO from Minmus, now take 2 burns instead of 4 to 6 burns.
Fully fueled when leaving Minmus, the vessel can bring it’s ore to LKO and go back to Minmus once empty of ore, all on internal fuel and without refueling.
Crew: 12 Kerbals
Capacity: 24k units of ore (240t)
Δv without payload: 5900 m/s
Δv with full payload: 2500 m/s

Based on the same design, a less specialized version was investigated. The ore tanks were replaced with cargo bays, and the crew capacity increased.
Turns out, this variant has even more capacity (for ore transport) than the Canterbury class. Also with it cargo bays, it may be able to act like a mother ship for exploration purpose.
The class name was choosen by a friend. A 13 minutes video of the launch is available there:
Crew: 20 Kerbals
Capacity: 4x mk3 cargo bay
Δv without payload: 5900 m/s
Δv with payload: depend of the payload mass
  • 50t: 4500 m/s
  • 100t: 3600 m/s
  • 200t: 2600 m/s
  • 300t: 2100 m/s

All the previous classes of vessels use Nerv as their engines due to its excellent ISP.
But what happen if we go for higher TWR at the cost of efficiency and capacity ?
The class name was choosen by a friend.
Crew: 20 Kerbals
Capacity: 2x mk3 cargo bay
Δv without payload: 4200 m/s
Δv with payload: depend of the payload
  • 50t: 3000 m/s
  • 100t: 2300 m/s TWR ≥ 1
  • 150t: 1950 m/s
  • 200t: 1600 m/s

A new facility in Kerbin orbit to handle this large vessels
The existing Kerbin Space Station architecture is not suitable to use by those kind of big vessels, furthermore the fuel storage capacity has proved to be limited too with those monsters.
Their maintenance and refueling around Kerbin will be handled on a new facility name Kerbin Space Port.

Kerbin Space Port
For this one there are several downloads:
The fuel depot can contain:
  • 106k units of Liquid Fuel
  • 44k units of Oxydizer
  • 8k units of Monopropellant
In addition the station can refine ore brought by vessels with two ISRUs.

Below are some images of the launch of the main section, or a 35 minutes long video of this same launch:

The space port in use
  • front side, from left to right:
    • Kangoo class freighter
    • Hades N.mk3 class vessel with ore tank (my previous ore tanker generation, being phased out and replaced with Canterbury class vessels)
  • back side, from left to right:
    • Pélican class freighter
    • Hades N.mk3 class vessel
    • Canterbury class ore freighter

The control towers are being replaced by a new variant shown on the blue print.

One more thing

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