yinzer - 20/8/2007 9:06 PMQuoteaero313 - 20/8/2007 5:06 PMQuoteyinzer - 20/8/2007 7:27 PMIsn't Orbital's NMD booster pretty much a Pegasus XL without wings?Nope. The rocket motors are similar, but propulsion only makes up a small piece of the total system. Different environments, different aeroheating, silo launch, TVC first stage, hot fire second stage with blow out ports in the interstage, different avionics, different fairing, different I&T flow...Need I go on?Not at all. Is it more similar to the Taurus, or are they all completely different from each other?
aero313 - 20/8/2007 5:06 PMQuoteyinzer - 20/8/2007 7:27 PMIsn't Orbital's NMD booster pretty much a Pegasus XL without wings?Nope. The rocket motors are similar, but propulsion only makes up a small piece of the total system. Different environments, different aeroheating, silo launch, TVC first stage, hot fire second stage with blow out ports in the interstage, different avionics, different fairing, different I&T flow...Need I go on?
yinzer - 20/8/2007 7:27 PMIsn't Orbital's NMD booster pretty much a Pegasus XL without wings?
Jim - 20/8/2007 9:45 PMQuoteyinzer - 20/8/2007 9:06 PMQuoteaero313 - 20/8/2007 5:06 PMQuoteyinzer - 20/8/2007 7:27 PMIsn't Orbital's NMD booster pretty much a Pegasus XL without wings?Nope. The rocket motors are similar, but propulsion only makes up a small piece of the total system. Different environments, different aeroheating, silo launch, TVC first stage, hot fire second stage with blow out ports in the interstage, different avionics, different fairing, different I&T flow...Need I go on?Not at all. Is it more similar to the Taurus, or are they all completely different from each other?no, A Taurus is a Pegasus with no wings and the launch aircraft is replaced by a Castor 120
aero313 - 20/8/2007 9:24 PMgetting approval from the people's republic of Santa Barbara County to use portable diesel generators...
antonioe - 20/8/2007 5:22 PMExcept, in our case, we started as a pure space company in 1982 (commercial, then NASA) and only transitioned to significant defense business after 2000, with the GMD program (we had a couple of small USAF Science and Technology small sats before GMD, but, combined, they never amounted to even 10% of our revenue. Pegasus, ORBCOMM and ORBIMAGE were the big programs during the 90's...)
Propforce - 23/8/2007 2:24 PMBack in 2003, I struggled briefly with an ethical dilema on whether to purchase OSC stock shortly before the official announcement of OSC winning the GMD BV+ contract. As an "insider", I knew the contract was awarded to OSC but has not yet made public, and I knew this would be a significant revenue infusion into OSC. I decided not to buy the stock for fear of 'complications' with ethics, but obviously that ethical issue didn't bother many as the ORB stock jumped from $6/share to $9/share and eventually to $14/share !! :laugh:
You did the right thing; money helps, don't get me wrong, but there are more important things in life.
antonioe - 23/8/2007 3:03 PMQuoteaero313 - 20/8/2007 9:24 PMgetting approval from the people's republic of Santa Barbara County to use portable diesel generators...You forgot their concern about the quantity of gaseous nitrogen that we were using... what would happen if all that nasty gaseous nitrogen were to be suddenly released into the delicate Santa Barbara County environment?
Propforce - 26/8/2007 6:20 PMWhere is the OSC pad at VAFB? Is that the SLC 8 ?
Propforce - 26/8/2007 5:20 PMWhere is the OSC pad at VAFB? Is that the SLC 8 ?