Quote from: capoman on 11/20/2019 07:10 pmQuote from: gongora on 11/18/2019 05:53 pmQuoteAt the point where Dragon and thetrunk separate, the first and second stage would become unstable and break up approximately 2–4 milesdown range from the shoreIt says FTS will be installed, but doesn't say it would be used unless the vehicle strays outside of the approved flight path.QuoteOff-nominal Scenario 3: For early aborts where Falcon 9 velocity, and hence dynamic pressure,are still relatively low, if no autonomous flight termination rules are violated, Falcon 9 mightimpact the ocean’s surface intact. For aborts closer to the abort time frame, an intact impact isunlikely. In the event of Falcon 9 intact impact, propellant is expected to be consumed in thehigher yield explosion resulting from propellant mixing upon impact.Hope we have cameras pointing at all the action, including "higher yield explosion" if it occurs!That’s surprisingly sloppy language as rockets don’t “explode” on impact. Technically they conflagrate. Fuel and oxidizer burn together as they are not premixed or well mixed. And that’s technically not “high yield”. It would be over the horizon for observers not high above the ground. Do we have an estimate of how far offshore the impact would occur? The likelihood is that the first and second graves will disintegrate in an uncontrolled and unstable supersonic tumble, and the capsule will streak away from a nice conflagration. Should be spectacular. Will the second stage be fueled to keep the rocket at the usual mass?
Quote from: gongora on 11/18/2019 05:53 pmQuoteAt the point where Dragon and thetrunk separate, the first and second stage would become unstable and break up approximately 2–4 milesdown range from the shoreIt says FTS will be installed, but doesn't say it would be used unless the vehicle strays outside of the approved flight path.QuoteOff-nominal Scenario 3: For early aborts where Falcon 9 velocity, and hence dynamic pressure,are still relatively low, if no autonomous flight termination rules are violated, Falcon 9 mightimpact the ocean’s surface intact. For aborts closer to the abort time frame, an intact impact isunlikely. In the event of Falcon 9 intact impact, propellant is expected to be consumed in thehigher yield explosion resulting from propellant mixing upon impact.Hope we have cameras pointing at all the action, including "higher yield explosion" if it occurs!
QuoteAt the point where Dragon and thetrunk separate, the first and second stage would become unstable and break up approximately 2–4 milesdown range from the shoreIt says FTS will be installed, but doesn't say it would be used unless the vehicle strays outside of the approved flight path.QuoteOff-nominal Scenario 3: For early aborts where Falcon 9 velocity, and hence dynamic pressure,are still relatively low, if no autonomous flight termination rules are violated, Falcon 9 mightimpact the ocean’s surface intact. For aborts closer to the abort time frame, an intact impact isunlikely. In the event of Falcon 9 intact impact, propellant is expected to be consumed in thehigher yield explosion resulting from propellant mixing upon impact.
At the point where Dragon and thetrunk separate, the first and second stage would become unstable and break up approximately 2–4 milesdown range from the shore
Off-nominal Scenario 3: For early aborts where Falcon 9 velocity, and hence dynamic pressure,are still relatively low, if no autonomous flight termination rules are violated, Falcon 9 mightimpact the ocean’s surface intact. For aborts closer to the abort time frame, an intact impact isunlikely. In the event of Falcon 9 intact impact, propellant is expected to be consumed in thehigher yield explosion resulting from propellant mixing upon impact.
IFA test targeting February 2020
This was short lived! I'm now being told it hasn't shifted to February
I’m told Crew Dragon in-flight abort might still occur before the end of this month. The host of SpaceX’s webcast apparently misspoke when he said February 2020.
May have meant DM-2 for February...?
Quote from: Draggendrop on 12/05/2019 05:27 pmMay have meant DM-2 for February...?Or it's slipped internally but they haven't announced that yet.
SpaceX is targeting NET December for its key Crew Dragon launch escape test and first quarter 2020 for the Demo-2 mission, which will be the company's first launch with crew.
No, I'm told the comment made on today's livestream was an honest mistake.
Given he was probably reading off a prompter, I suspect the mistake was by whoever prepared the text, not the presenter. In any case, it is good to have that clarified.
https://twitter.com/thesheetztweetz/status/1202657201048948738QuoteSpaceX is targeting NET December for its key Crew Dragon launch escape test and first quarter 2020 for the Demo-2 mission, which will be the company's first launch with crew.
.@NASA & @SpaceX are targeting no earlier than Jan. 4 for an In-Flight Abort Test of the #CrewDragon 🐉 from Launch Complex 39A at @NASAKennedy.The test of the escape system is one of the final tests before astronauts will fly aboard the spacecraft: http://blogs.nasa.gov/commercialcrew/2019/12/06/spacex-in-flight-abort-test-launch-date-update/
SpaceX In-Flight Abort Test Launch Date UpdateNASA and SpaceX are targeting no earlier than Jan. 4, 2020, for a critical In-Flight Abort Test of the Crew Dragon spacecraft from Launch Complex 39A at the Kennedy Space Center, Florida, pending U.S. Air Force Eastern Range approval.As part of the test, SpaceX will configure Crew Dragon to trigger a launch escape shortly after liftoff and demonstrate Crew Dragon’s capability to safely separate from the Falcon 9 rocket in the unlikely event of an in-flight emergency. The demonstration also will provide valuable data toward NASA certifying SpaceX’s crew transportation system for carrying astronauts to and from the International Space Station.The demonstration of Crew Dragon’s launch escape system is part of NASA’s Commercial Crew Program and is one of the final major tests for the company before NASA astronauts will fly aboard the spacecraft.The In-Flight Abort Test follows a series of static fire engine tests of the spacecraft conducted Nov. 13 near SpaceX’s Landing Zone 1 on Cape Canaveral Air Force Station in Florida.Author Marie LewisPosted on December 6, 2019
After High Altitude In-Flight Abort Test #CrewDragon will splashdown 31km east of the KSC LC-39A! Planned recovery boat location by purple pin, based on issued FCC application. https://t.co/sNLoxe58re
The Falcon 9 booster is expected to break apart following the abort. The debris is anticipated to fall into the area shown below. SpaceX intends to recover all floating debris.
