Even a standard falcon 9 reusable can push 10 tonnes to the L1/2 escape points into the low energy resonance transfer orbits to anywhere in the solar system. You just need a stage that is one not chemical and two radiation hardened to get past the van Allen belts.
We have that with this tech tree.
Using the mass-produced 5,207.66 kg Heavy Class Argon C-Tug to handle the full low-thrust spiral out of LEO, you can inject a maximum net payload of 10,792.34 kg (10.79 Metric Tons) directly to the Earth-Moon L1/L2 gateway out of a single reusable Falcon 9 launch.
## Master Mass Budget Matrix (5.2T Carrier L1/L2 Injection)
Holding the total launch stack to the strict 16,000.00 kg reusable Falcon 9 limit, the hardware and fuel fractions resolve into this highly optimized baseline:
| Structural / Propellant Component | Mass Allocation | % of Total Launch | Core Sizing & Engineering Context |
|-—|-—|-—|-—|
| Total Reusable Falcon 9 Limit | 16,000.00 kg | 100.00% | Hard maximum reusable KSC lift target. |
| Stage 1 (Heavy Departure C-Tug) | 5,207.66 kg | 32.55% | Standardized 5.2-Tonne Super-Booster layout. |
| ↳ Tug Dry Hardware + Mounts | 580.23 kg | = | Unified factory core dry bus + drop-tank quick-disconnects. |
| ↳ Total Loaded Argon Propellant | 4,627.43 kg | = | Fully consumed during the 7,558 m/s Van Allen escape spiral. |
| Net Delivered Gateway Payload | 10,792.34 kg | 67.45% | Over 10.7 metric tons of clean customer cargo. |
## Core Strategic Staging Advantages
* Maximum Mass Efficiency: Propellant accounts for 88.86% of the standalone vehicle’s mass. Because the tug sheds its heavy 1.41-meter external side tanks via quick-disconnect pyro bolts the moment they hit zero, it spends its energy moving functional payload rather than dead structural weight.
* The Van Allen Shielding Play: While climbing light through the deepest radiation throat of the belts, the cargo sits tightly folded on the top mounting ring with its arrays facing inward—solid aluminum backplanes facing out—creating a Faraday cage to protect delicate electronics. The tug’s extended tracking IMM arrays fire at 100% throttle (9.3 kW) to drive the massive 16-ton stack at maximum continuous acceleration.
* The Reusable Recovery Loop: Once the 10.7-ton payload is released at the gateway, the empty 492 kg core dry bus uses its small remaining internal fuel to slide down an unstable manifold tube back to Earth’s 1,000 km perigee at 28.5°. The 45 kg plasma loop brake deploys, letting Earth’s magnetosphere contract the apogee back to a 600 km circular orbit for zero fuel cost, gliding straight back into the uncrewed Starship Fuel Depot arms to be refueled and reset for the next run.
I will sum up the above.
One sat bus made of carbon fiber, with carbon fiber tanks, and ion engines plus IMM radiation hardened solar cells and a radiation shielded ECU you can completely break the tyranny of the rocket equation and flood the solar system with mass for next to no fuel costs and set up not throw away boosters and stages, but space tugs that come home to a depot for more dirt cheap fuel that makes up 1% of what you breathe with every breath everywhere all the time its endless supply.
Falcon 9 is able to beat any existing booster to C0 other than its own falcon heavy version.
Using falcon heavy and two of our sat bus and you can in a single launch reusable at that push more payload to deep space than ALL PAYLOAD launched by humans to deep space in the past 50 years.
With starship the numbers get to hundreds of tonnes to Mars and Jupiter and you don’t need to expend a starship to do so you send ion engine to sip fuel mass way out there or dive deep into the suns gravity well where you get 10s of megawatts in tiny arrays and scream out using megawatt class PIT engines running on window cleaner.
We have the tech we lack the will.