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RE: DeepFlight Dragon - World's Easiest to Pilot Personal Submarine
pros:
- key components already flight proven (Draco, PICA-X, pressure shell, GN&C, water/parachute landing)
- full vertical integration of the whole stack in the same company
- redundant landing options (powered vs. parachute)
- reusable
- significantly lower retrieval cost (in powered landing)
- classic (proven) capsule design
- lowest cost per mission (estimated up to 140 million)
cons:
- toxic hypergolics used
- powered landing reduces usable mass to orbit
- powered landing not proven