Ok, I've not tried often to send such big payloads, so here is my entry to the kiloton club:
View attachment 39537
This is a 3 stage rocket. 1020 tons of payload, 5433 tons overall.
1st stage: 18 Titan - 7200 tons of thrust. Burn time: 74 seconds; TWR = 1.33; delta-V = 1241 m/s
2nd stage: 33 Frontier - 3300 tons of thrust
Burn time: 93 seconds; TWR = 1.2; delta-V = 1386 m/s
3rd stage: 6 Frontier - 600 tons of thrust
Burn time: 130 seconds; TWR = 0.44; delta-V = 629 m/s
So, lift-off!
View attachment 39538
That rocket accelerates quickly and is quite easy to fly despite its weight:
View attachment 39539
View attachment 39540
View attachment 39541
And finally:
View attachment 39542
View attachment 39543
Orbit! But the 3rd stage is still unused
I thought I would loose a lot of delta-V during the staging phases, because of the time it needs to light all engines, but it wasn't that much in the end (way less than what I experienced in the "Jupiterized" challenge).
Well, let's say I've placed 1359 tons of payload on LEO then.
I tried burning the third stage:
View attachment 39545
And I missed the Moon by a few meters per second!
Oh well, my payload weighs 1020 tons, so I can pump out 20 tons of fuel from it, and I will still have sent 1000 tons to the Moon right?
View attachment 39546
View attachment 39547
And I crashed 1000 tons on the Moon! Most expensive fireworks ever!