The Enzmann Starship: History & Engineering ... - Icarus Interstellar

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Population Size30,000 tonnes Starship(Enzmann Slow Boat)300,000 tonnes Starship(Enzmann Slow Ship)350350300300250250Tonnes/person200150Tonnes/person200150100100505000 1000 2000 3000 4000 5000 6000No.People* NASA space colonystudies, ~65tonnes/person** Russian Longduration CELSSsystem 15-65tonnes/personTonnes/person7006005004003002001003000,000 tonnes Starship(Enzmann World Ship)00 50000 100000 150000 200000 250000No.People00 10000 20000 30000 40000 50000 60000No.People
Enzmann Slow BoatDry spacecraft mass30,000(tonnes)Propellant mass (tonnes) 3×10 6Start population 200End population 2,000Total Mass Ratio 101Mass Ratio 10.05Exhaust Velocity (km/s) 11,700Total Delta.V (km/s) 54,000 (0.18c)Cruise Velocity (km/s) 27,000 (0.09c)Total acceleration time18.95(years)Total Cruise time (years) 41.05Total Mission time (years) 60Mass Flow Rate (kg/s) 5.02Start Acceleration (m/s2) 0.019 (0.002g)Thrust (kN) 58,730a =dmdtMvexprop,totPULSE FREQUENCY1 Hz; ~5000 grams10 Hz; ~500 grams50 Hz; ~ 100 grams100 Hz; ~50 grams250 Hz; ~20 gramsBut for 8 or 24 engine design pelletmasses can be reduced further still.T=Vex.dm/dtMpell = Mprop /(tb.fHz)
Page 1 and 2: The Enzmann Starship:History & Engi
Page 3 and 4: Robert Duncan Enzmann• -Jay Snyde
Page 6 and 7: Origins: Robert Enzmann (1964-1966)
Page 8 and 9: S.S.Statendam, 24,000 gross tons, 1
Page 10 and 11: Enzmann Starships (1972)In 1972 Don
Page 12 and 13: Analog (1973)Flying Iceberg wasfrom
Page 14 and 15: Originally painted bySternbach in 1
Page 16 and 17: Originally painted in 1974as 35 mm
Page 18 and 19: Astronomy Magazine “Slow Boat to
Page 20 and 21: National Geographic Picture Atlas (
Page 22 and 23: In the 1980s RobertEnzmann began to
Page 24 and 25: Torch ClassContinuous FusionLikely
Page 27 and 28: Enzmann Starship: Engineering Layou
Page 29 and 30: Nuclear Pulse PropulsionProject Ori
Page 31 and 32: Nuclear PulsePropulsion. ICF pellet
Page 33 and 34: Deuterium Sphere Shell It may be ne
Page 35 and 36: “World Ships - An Assessment of t
Page 41: Slow Boat - Slow Ship - World Ship
Page 45 and 46: Enzmann World ShipDry spacecraft ma
Page 48 and 49: Enzmann ColoniesOnce the D fuel is
Page 50 and 51: Each cell could then bemated to oth
Page 52: We have conducted extensive researc

The Enzmann Starship: History & Engineering ... - Icarus Interstellar

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