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KASDA mission log | Y60, D277 | Launching a Neidon system miner + probes with a ~300-tonne capacity rocket

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On 1/26/2020 at 10:59 AM, Kerballing (Got Dunked On) said:

Wait, I thought you said you weren't gonna do crewed missions to the Outer Planets! What changed?

I answered your question that I wouldn't install any other packs. Of course I'm doing crewed missions to the Outer Planets.

Mission 204: Tachi Maru flight 06 (part 1, part 2)

The last crew to arrive on Iwaki Base on Ike (and the Duna system as a whole).

Y59, D361 (Tachi Maru Ike insertion)
Y59, D362 (landing)

LKO population: 24
Mun population: 12
Minmus population: 12
Ike population: 6 -> 12
Duna population: 24
Dres population: 12

Total population: 96

Insertion burn

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Spoiler

Rendezvous with Duna Rabbit 3

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Landing

OVsO56B.png

HimJxOI.png

 

Edited by Pipcard

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Mission 206: Negi Star Mk2 flight 04

Camlorf, Anelle, Tiella, Agaselle, Julphia, Negy, Lisliana, Maxtina, Anline, Kaice, Erilin, Kabel, Kerming, Hersy, Lincy, and Gusgar arrive at the Negi Maru.

Y59, D380 (launch)

Vaj2but.png

Mission 207: Project DIVA X 2nd / Negi Maru flight 05 (part 1)

Designing Interplanetary Vehicle Architecture with eXtreme-efficiency propulsion, 2nd mission. A 16-Kerbal mission to explore the Urlum system.

Y59, D387-388 (Negi Maru Kerbin -> Urlum)

Y64, D213 (estimated Urlum arrival)

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Spoiler

Planned trajectory

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Planned insertion (after correction)

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Edited by Pipcard

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Wow, does that say 4.5 km/s of dV required for that Urlum insertion burn? And another... *maths quickly* 3.75 km/s for Kerbin to Urlum burn?

Edited by Kerballing (Got Dunked On)

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8 minutes ago, Kerballing (Got Dunked On) said:

Wow, does that say 4.5 km/s of dV required for that Urlum insertion burn? And another... *maths quickly* 3.75 km/s for Kerbin to Urlum burn?

Yes it does. The launch window calculator estimated that the Kerbin to Urlum burn would take ~2600 m/s for a trip of just over 4 years, but when planning the maneuver node, it would take ~3500 m/s for a trip of almost 5 years. In reality, the departure burn ended up being almost 4500 m/s for a trip of 4.5 years. And that's why the 1500-sec Isp nuclear lightbulb comes in handy.

Edited by Pipcard

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3 minutes ago, Pipcard said:

Yes it does. The launch window calculator estimated that the Kerbin to Urlum burn would take ~2600 m/s for a trip of just over 4 years, but when planning the maneuver node, it would take ~3500 m/s for a trip of almost 5 years. In reality, the departure burn ended up being almost 4500 m/s for a trip of 4.5 years. And that's why the 1500-sec Isp nuclear lightbulb comes in handy.

Wowie.

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Mission 208: WiM-17 + Amethyst (part 1)

A mining ship and probes for Neidon and its moons. The miner uses three nuclear lightbulb engines, which serve two purposes. The first is to get to Neidon with lots of Delta-v (~18000 m/s) in about 5 years. The second is to be able to lift off from the largest moon, Thatmo, carrying a full load of propellant. The other, smaller moon (Nissee) takes hundreds of days to transfer to and from. Three pairs of large radiators dissipate the heat generated by the nuclear lightbulbs. The dry mass of just the miner itself exceeded the capacity of the K-2 launch vehicle by about 40 tonnes, so a new 10-meter launcher was developed: the K-3, which has a maximum capacity of about 300 tonnes with (almost) full reusability. The large diameter tanks and parachutes come from Behemoth Aerospace.

283796 kg (launch mass), 542806 kg (full mass = 532185 kg miner + 10621 kg probes); K-3 launch vehicle

Y60, D270 (launch)
Y60, D277 (WiM-17/Amethyst Kerbin -> Neidon)

Y65, D271 (estimated WiM-17/Amethyst Neidon insertion)

 

 

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Launch:

Spoiler

Jettison of the first stage, which is powered by five SpaceY Emu engines. The second stage has one Emu.

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Fairing separation

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The first stage happened to land on the runway

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A different approach for second-stage re-entry was used, with the inflatable heat shield in front of the vehicle. The only parts that are expended in this launch system are some decouplers and the fairings.

yfqfjgA.png

The large parachutes from Behemoth Aerospace slowed the almost-empty stage to about 5 m/s.

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It tumbled over, but it is still intact.

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Docking with propellant depot and trans-Neidon injection

Spoiler

From bottom left to top right: WiM-13 Minmus miner, WiM-14 Kerbin orbital depot, WiM-17 Neidon miner + Amethyst probes

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Planned trajectory (uses about 2/3 of available Delta-v)

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The burn is completed in about 25 minutes

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Course after correction - will arrive in less than 5 years

noxVjec.png

 

Edited by Pipcard

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Oh YEAH! Neidon seems neglected by many OPM playthroughs. Do you think neidon should have more moons? 

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6 hours ago, The Minmus Derp said:

Oh YEAH! Neidon seems neglected by many OPM playthroughs. Do you think neidon should have more moons? 

Perhaps a Proteus analogue?

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2 hours ago, Pipcard said:

Perhaps a Proteus analogue?

That, and a larissa analogue, and some faint rings (with customAsteroids). Maybe there could also be some CustomAsteroids asteroids far out, on wonky orbits.

Someone make a mod for that, please!

 

 

Edited by The Minmus Derp

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That's a lot of years. I could never have a playthrough last that long. 

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On 2/6/2020 at 12:50 PM, The Minmus Derp said:

That's a lot of years. I could never have a playthrough last that long. 

A redditor known as 16807 is who inspired me to keep going. They have done missions to Jool (after 36 years), Sarnus (52 years), Urlum (86 years), Neidon (~100 years) and Plock (127 years), and even an interstellar fly-by (150 years) and self-replicating probe mission (250 years) with fusion-powered spacecraft. But this playthrough won't go interstellar, I will save that for KSP 2 which will hopefully be more optimized for building huge interstellar spaceships with lots of parts.

Edited by Pipcard

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18 hours ago, Pipcard said:

A redditor known as 16807 is who is inspired me to keep going. They have done missions to Jool (after 36 years), Sarnus (52 years), Urlum (86 years), Neidon (~100 years) and Plock (127 years), and even an interstellar fly-by (150 years) and self-replicating probe mission (250 years) with fusion-powered spacecraft. But this playthrough won't go interstellar, I will save that for KSP 2 which will hopefully be more optimized for building huge interstellar spaceships with lots of parts.

Oh... so we'll see this come to an end, then?

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2 hours ago, Kerballing (Got Dunked On) said:

Oh... so we'll see this come to an end, then?

Eventually.

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