Rocket Science!

What is pride? A rocket that emulates the stars.
William Wordsworth

Rocket Size Mass to LEO, metric tons Mass to GTO, metric tons Mass to SSO, metric tons Total Launches Core Stage Boosters Stages Cost
Ariane 4 [1] - 10.2 (200 km,5.2°); 8.2 (200km, 90°) 4.8 (185 km, 7°) 6.5 - - - - -
Ariane 5 ECA [1] 46-52 m x 5.4 m 18 (550 km, 28.5°)[777,000 kg total] 6.8 (580 km, 7°) 12 72/76 total; 45/46 ECA EPC H173 @ 1,390 kN (vacuum) using Vulcain 2 engine w/ 432 Isp (vacuum)  and 540 s burn time using LOX/ LH2 ECA – EAP P241 x 2 @ 14,160 kN total, 140 s burn using HTPB; ECA Stage 2 – EPS ESC-A 67 kN, 945s burn time w/ 446 Isp using LOX/ LH2 $200M
Atlas V 550 [1,2] 58.3 m x 3.81 m 20 (185 km, 28.5°), 17 (185 km, 90°)  [334,500 kg total] 8.2 (167 km, 27°);[9,800–18,810 kg total] - 47/48 - - 2 $223M to GTO
Delta IV [2] 63.0-72.0 m x 5.0 m 249,500-733,400 kg 9,420-28,790 kg 4,440-14,220 kg 26/27 x x 2 $170M
Delta III [1] - 8.3 (185 km, 28.7°), 6.8 (200 km, 90° 8.3 (200 km,28.7°) 6.1 - - - - -
Falcon 9 [2] 68.4 m x 3.66 m 505,846 kg 13,150 kg 4,850 kg 10/11 x x 2 $59.5M
Long March 3B [1] - 11.2 (200 km, 28.5°) 5.1 (180 km, 28.5°) 6.0 - - - - -
Proton K [1] - 19.8 (186 km, 51.6°) 4.9 (4200 km, 23.4°) 3.6 - - - - -

References:

  1. The Physics of Space Security: A Reference Manual, David Wright, Laura Grego, and Lisbeth Gronlund, 2005
  2. Space Mission Engineering: The New SMAD (Space Technology Library, Vol 28), James R. Wertz, David F. Everett, 2011

SEC Football Week 7: Missouri Tigers 42, Florida Gators 13

 

Will Muschamp is finding innovative ways to lose a game. I cannot wait to see how we lose against Georgia in our next game after the bye week. Despite the Gators gaining more yards on offense, the Gators could not overcome Missouri’s points off an interception, kick return, and punt return, as well as a short field surrendered after 3 interceptions.

Continue reading

In defense of Will Muschamp

Comparison - Will Muschamp and Dan Mullen

I am not turning on the TV today. Every dadgum channel is showing snippets of Forced Sex University and Notre Dame. Meanwhile, my team’s offense cannot locate the endzone!

I try to hold onto some optimism, but I just do not have enough booze in the refrigerator to maintain much optimism. It is not even 9:00 AM Pacific time and I need some booze just to read this [Only Gators: The Silver Lining]. The gist of that article is that article is that amidst the noise, there are still signs of hope for Will Muschamp. Right now, there are plenty of Gator fans clamoring for Dan Mullen. In 2008, there were plenty of Gator fans calling for Mullen’s head as OC–even going as far as putting up websites calling for him to be fired. How short our memories are here in Gainesville in 2014. In 2013, fans in Starksville were calling for him to be fired after they went 6-6. Fast forward to 2014, and with only 7 additional games there are fans in Starksville and Gainesville proclaiming Dan Mullen as the greatest coach of the past 30 seconds.

To the point: Will Muschamp’s numbers overall are still better than Dan Mullen’s at equivalent points in their respective careers. The outlier here for Muschamp is not the 11-2 season, but the 4-8 season. The outlier for Mullen is the 7-0 season to this point, which is statistically a sign that he has reached nirvana of college coaching or he reached an anomalous peak.

In summary: As much as I expect a crappy game today, and as much as I am fed up with the product on the field, I still hold onto a smidgen of hope that the statistics below point to a possible turnaround next year for Will Muschamp. However, if the Gators lose ugly to Mizzou today, then all bets are off.