I dont see a grapple fixture or other attach mechanism on the new LEE. Will it need to be removed from the trunk via spacewalk or am I just missing where the arm or dextre will grab it?
I do not remember having a US disposal off the coast of Bermuda previously. When was the last time that was done? Usually it’s in southern ocean or Indian Ocean near Australia
Quote from: Wolfram66 on 06/23/2018 03:55 pmI do not remember having a US disposal off the coast of Bermuda previously. When was the last time that was done? Usually it’s in southern ocean or Indian Ocean near AustraliaIt usually is in or near the Pacific or Indian oceans, this might be one of the B5 S2 re-entry tests we've heard about
The S2 re-entry zone is oriented northwest to southeast, aligned for a descending node re-entry.How long would it take for the initial, approximately 90-minute orbit to "walk" around the globe to have a descending node re-entry over the North Atlantic?
Quote from: zubenelgenubi on 06/24/2018 01:26 amThe S2 re-entry zone is oriented northwest to southeast, aligned for a descending node re-entry.How long would it take for the initial, approximately 90-minute orbit to "walk" around the globe to have a descending node re-entry over the North Atlantic?A quick measurment on Google Maps says that the track is 3000 miles east of KSC.That roughly translates to 10 hours 12*(0.5-3000/(6378*2*pi*cos(28.6))=9.9I am sure someone can do a more precise estimate.
Quote from: Comga on 06/24/2018 02:59 amQuote from: zubenelgenubi on 06/24/2018 01:26 amThe S2 re-entry zone is oriented northwest to southeast, aligned for a descending node re-entry.How long would it take for the initial, approximately 90-minute orbit to "walk" around the globe to have a descending node re-entry over the North Atlantic?A quick measurment on Google Maps says that the track is 3000 miles east of KSC.That roughly translates to 10 hours 12*(0.5-3000/(6378*2*pi*cos(28.6))=9.9I am sure someone can do a more precise estimate.Thanks!--a rough estimate is sufficient to serve my follow-up question.If the second stage is to perform a re-entry burn approximately 10 hours after launch, is that a substantial increase in its operational lifetime over previous launches/Falcon 9 versions?
Eastern Range OP# X4715 FALCON 9 CRS-15 will be conducting hazardous operations surface to unlimited within the following Launch Hazard Areas.A: From 2836N 8038W, TO 2906N 8011W, TO 2904N 8007W, TO 2834N 8028W, TO 2829N 8033W to beginningB: From 3232N 7630W, TO 3453N 7342W, TO 3445N 7326W, TO 3222N 7619W to beginningHazard periods for primary And backup launch day;Primary launch day: 29 / 0933Z thru 29 / 1014Z Jun 18. Preferred T-0 is 0938Z.Backup launch day (1): 30 / 0911Z thru 30 / 0951Z Jul 18. Preferred T-0 is 0916Z.Backup launch day (2): 01 / 0844Z thru 01 / 0925Z Jul 18. Preferred T-0 is 0849Z. Eastern Range OP# X4715 FALCON 9 CRS-15 UPPER STAGE REENTRY will be conducting hazardous operations surface to unlimited for atmospheric upper stage reentry and splashdown of launch vehicle upper stage within the following areas.A: FROM 3933N 5940W, TO 2800N 4628W, TO 2227N 5152W, TO 3446N 6509W to beginningHazard periods for primary and backup launch day;Primary launch day: 29 / 1553Z thru 29 / 1632Z Jun 18. Preferred T-0 is 0938Z.Backup launch day (1): 30 / 1531Z thru 30 / 1634Z Jul 18. Preferred T-0 is 0916Z.Backup launch day (2): 01 / 1504Z thru 01 / 1543Z Jul 18. Preferred T-0 is 0849Z.
Airspace Closure Area and Launch Hazard Area
Quote from: FutureSpaceTourist on 06/26/2018 12:02 amAirspace Closure Area and Launch Hazard AreaI'm digging the Expendable Launches heading on the hazard area sheet.
That's on all those maps, regardless of what the booster does after MECO. It has been on other launches where there has been a landing, nothing special
Quote from: Alexphysics on 06/26/2018 09:49 pmThat's on all those maps, regardless of what the booster does after MECO. It has been on other launches where there has been a landing, nothing specialIs that so? What's the heading from then, the shuttle days? A vestigial leftover of truly-expendable EELV?
It's the Air Force classification of the Falcons as part of the EELV program. Nothing to do with Shuttle. It's just the Air Force nomenclature. Has nothing to do -- now -- with true expendability.
Right. Back in the day, 1980s and onward, there was Space Transportation System and there were Expendable Launch Vehicles.
There should be a new naming convention to explain the modern era. Partially Reusable Launch Vehicle? Evolved Launch Vehicle? Vertical Launch Vehicle? VTVLLV?
Renames the Evolved Expendable Launch Vehicle (EELV) program the National Security Space Launch Program and directs the Secretary of Defense to pursue a strategy that includes fully or partially reusable space launch systems.
Quote from: ChrisGebhardt on 06/27/2018 01:02 amIt's the Air Force classification of the Falcons as part of the EELV program. Nothing to do with Shuttle. It's just the Air Force nomenclature. Has nothing to do -- now -- with true expendability.Right. Back in the day, 1980s and onward, there was Space Transportation System and there were Expendable Launch Vehicles. That was the nomenclature (USAF and NASA), and it apparently hasn't changed. And the nomenclature is mostly accurate this year. In 2018 so far, seven of the ten Falcon 9s have been totally expended. (This launch will make eight out of eleven.) The other three were, like Shuttle in the old days, partly expended.There should be a new naming convention to explain the modern era. Partially Reusable Launch Vehicle? Evolved Launch Vehicle? Vertical Launch Vehicle? VTVLLV? - Ed Kyle
If you sort by block, the pattern for launches and recoveries this year is clear:Block 4: 100% expended (88% after reuse: only 1 new booster was expended or lost, and then only due to weather at the landing site preventing a recovery attempt) Block 5: 100% recovered