Unless it involves a Jupiter flyby, 90 (km/s)^2 doesn't look enough for Uranus. Injection energies to Jupiter apparently range from 75-85, depending on if you have good winds that day.
Keep in mind any of those outer planet missions beyond Jupiter (and Jupiter missions closer in than Ganymede) would need to have FH certified for nuclear payloads. Blackstar mentioned that is a very expensive and long process, in addition to actually certifying the vehicle for high cost, high low risk NASA missions.
With the inherent nature of the FH design ie been human rated, i wouldn't think it wouldn't take much more in terms of getting it nuclear rated.
Most of the work to get it would be on the handling side.
The atlas 5 has to have gone through same procedures for New Horizons
With the inherent nature of the FH design ie been human rated, i wouldn't think it wouldn't take much more in terms of getting it nuclear rated. Most of the work to get it would be on the handling side.The atlas 5 has to have gone through same procedures for New Horizons and MSL.
Quote from: Halidon on 04/08/2011 04:54 amQuote from: simonbp on 04/08/2011 04:30 amChange tracks to using neutron flux from a bomb to deflect an asteroid. Asking for a redacted version of classified report...Really? What medium to transmit the pulse?Vacuum. The neutrons ablate a layer of rock which expands off, carries momentum, and acts as an effective rocket.
Quote from: simonbp on 04/08/2011 04:30 amChange tracks to using neutron flux from a bomb to deflect an asteroid. Asking for a redacted version of classified report...Really? What medium to transmit the pulse?
Change tracks to using neutron flux from a bomb to deflect an asteroid. Asking for a redacted version of classified report...
Max Vozoff on ISP Systems and NOFBX...Right now a plan; ask again in 3 years how it goes. Nitrous Oxide with a "secret sauce" added.
Charles Pooley on MicrolaunchersRelocating to Las Vegas; business much easier than in California. Sending Nanosats to NEOs and Earth quasi-satellites. Attitude control with radiation pressure. Total mass less than 200 grams. 7 cm telescope for imaging. 100-300 kg GLOW launch vehicle.
Relocating to Las Vegas; business much easier than in California. Sending Nanosats to NEOs and Earth quasi-satellites. Attitude control with radiation pressure. Total mass less than 200 grams. 7 cm telescope for imaging. 100-300 kg GLOW launch vehicle.