Supercruise was always a marketing gimmick. The F-22 combat radius is 590nm while subsonic. With 100nm of "supercruise" dash the combat radius reduces to 460nm. That is a massive 28% reduction in combat radius for simply supercruising for 11% of the flight. 460nm combat radius is 920nm fl...Jump to post
7 and 8 might trade places several times. They decided it would be more efficient to apply fixes and improvements to one while testing the other. The static fire was a little disappointing. Single engine fires on the suborbital stands were usually louder and more chest congestion loosening. I saw s...Jump to post
Booster 7 had 7 raptors fire up this am, got good chamber pressure, now back to the high bay for modifications apparently. Next up will be 8, full (wet) dress rehearsal, and then a full static fire. So they have decided to move on to Booster 8? Everyone was wondering if they would. But sounds like ...Jump to post
Can someone enlighten me as to exactly what Boeing will do to the 787 to increase MTOW? I assume removing metal from the airframe but are there going to be changes to the wings or engines? Is there room for any larger or additional fuel tanks? Why would you assume removing metal from the airframe t...Jump to post
Great. I think 50 different sets of rules will vastly improve efficiency and customer satisfaction.Jump to post
It almost looks like a rubber bushing or bumper.Jump to post
That’s a pretty big presumption that it was the passenger and not the employee that escalated this. I was through DFW on Aug 10/11. The 10th saw severe wx that caused an afternoon 3 hour ground stop. My AA flight diverted to LIT. I got to DFW almost 5 hours late and went to the AA FL for dinner bef...Jump to post
Looks like some Crew trunk debris survived reentry and fell onto Aussie farm land (and it wasn't the only piece): The U.S. space agency, NASA, said in a statement that SpaceX confirmed that the object was likely the remaining part of the jettisoned trunk segment from a Dragon spacecraft used during...Jump to post
Joe Sutter was something you don't see any more. The 747 exists because he had the cojones to stand up to Boeing management when they tried to do something stupid that would have screwed up the program.Jump to post
https://www.diu.mil/work-with-us/submit-solution/PROJ00402 "The Department of Defense (DoD) is seeking a concept of design (CoD) of an advanced aircraft configuration that provides at least 30% more aerodynamic efficiency than the Boeing 767 and Airbus A330 families of commercial and military a...Jump to post
In normal ducted jet engine testing, do they still blow a blade to test containment?Jump to post
I support his decision, but I wonder what would prompt this after such a short tenure? Probably just wants to retire. He's not getting any younger and keeps being thrown into the limelight everytime someone writes an article about an airplane going tech. He doesn't keep being "thrown" in ...Jump to post
CAS is more of, "how close can you shoot at a target to a nearby friendly" than anything else. It's more of a skill set of the pilots and crew, from being able to pick out the target, communicate with troops on the ground, and aiming the weapons, than anything to do with the actual aircra...Jump to post
Any been near the H model with the 8 blade props vs the old 4 blades? Is there is a noticeable decibel difference? Collins Aerospace claims its NP2000 eight-bladed propellers reduce noise by 50% (20 decibels) compared with the old 4-bladed propellers. https://www.collinsaerospace.com/-/media/projec...Jump to post
They are all built. 4 Crew Dragon and 2 Starliner. That's what was needed to fulfill the contractual obligations. Each could build more if requested. Starliner can turnaround faster since it doesn't land in water. Boeing was originally going to build 4 but decided 2 was enough. You want to bet Star...Jump to post
Actually Starliner is built to be launcher-agnostic, it can fly on F9 just as easily as Atlas or Vulcan. Whereas Crew Dragon is vertically integrated and can only fly on F9. That said, it's unlikely there would be a need for either to fly on the other's launcher, unless there is a grounding issue. ...Jump to post
Limited docking life is the rub. Soyuz is rated for half a year, and was seen pushing it a few times. That's a capability sorely missed from new vehicles. What are you talking about? Manned Dragon and Starliner are both rated for 7 months. Just curious - what's the limiting factor? Rubber seals get...Jump to post
OK, and the next next question: How many Starliner capsules is Boeing contracted to or expected to build? SpaceX has already halted building new Crew Dragon 2's as the current fleet of four will suffice for current expected flight needs. Tugg They are all built. 4 Crew Dragon and 2 Starliner. That'...Jump to post
Limited docking life is the rub. Soyuz is rated for half a year, and was seen pushing it a few times. That's a capability sorely missed from new vehicles. What are you talking about? Manned Dragon and Starliner are both rated for 7 months. Seriously? I must have slept through that class :) Thanks f...Jump to post
Phosphorus wrote:Limited docking life is the rub. Soyuz is rated for half a year, and was seen pushing it a few times.
That's a capability sorely missed from new vehicles.
All manned capsules have always been qualified lifeboats. Dragon is limited to 4 and Starliner to 5. NASA made SpaceX remove the row of three seats because they didn't like the angles. The passengers ride the same type of capsule both ways because the spacesuits are only designed for one. Why NASA d...Jump to post
There's a difference between a depressed person who ends his life and a mass murderer.Jump to post
There are a couple of drop in replacements for most planes - the industry has been working on this for years. But nothing is 100% - for example old leaded gas cars has extra valve seat wear, even with proper octane. So everything has to be tested, approved, certified, etc. G100UL was finally first ...Jump to post
Said the loads on the helicopter were greater than expected, so as a precaution, they let it go for secondary splashdown and retrieval. But still a major success. They will improve on that and showed the idea is viable. Yes, just watched the webcast after seeing a headline, Space X had plenty of ne...Jump to post
Yes. Most of the premature wear is in the hot section. The compressors seem to be holding up better than the turbines. The gearbox, that many assumed would be problematic, have had no issues. Pratt is aware of all the issues. I presume they are diligently working to resolve but it seems they have a...Jump to post
The SOFIA (Stratospheric Observatory for Infrared Astronomy) is finally getting put to pasture.
https://www.nasa.gov/feature/nasa-partn ... ia-mission
Are there any other 747SPs actually still in operation?
How did I miss the Crew-4 launch... :ghost: April 29th will see a new record: Booster 1062 will fly after a 21-day refurbishment. It will be her sixth lunch. On May 8th, two Starlink launches from the east coast! A 21 day lunch break sounds a little excessive. If the Starlink gets off on the 29th, ...Jump to post
hiflyeras wrote:Just where is Starlink at as far as FAA certification of the antenna required for mounting on the 'roof' of the fuselage? I'm wondering why they are both a bit vague about a start date.
Crew was pretty wobbly on exiting the spacecraft. Was the crew able to use ISS exercise equipment during their “bonus” days? I believe I heard a call for private medical conference after splashdown…. It's a thing that's existed for thousands of years. Everybody takes a bit to get their land legs ba...Jump to post
Just had a NASA teleconference, the rollback decision was taken because the nitrogen vendor asked for time to expand their pipeline capacity, which had been the source of delays on the earlier tests. They are looking at 3 options for completing WDR. Two of them involve double trips back to VAB, the...Jump to post
Artemis WDR has been mostly successful. They found 2 minor issues in an incredibly complex system. A check valve that doesn't seal properly, and a hydrogen fitting that leaked under a pressure surge. Both are easily fixed. They wouldn't be rolling it back if it was "easily" fixed. And you...Jump to post
I remember how many times in the early days SpaceX people would go to the launch pad and pretty much hit a sticky cryo valve with a hammer to get things going. If they'd used the proper methods of fixing something, they'd still be at it when the sun turned into a red giant. The Shuttle had a lot of ...Jump to post
James Webb Space Telescope instrument reaches super-cold operating temperature https://www.space.com/james-webb-space-telescope-absolute-zero-calibration It did 5 days ago. The media outlets are just doing their normal jumping on the bandwagon. A good place to keep track of things is https://jwst.n...Jump to post
kitplane01 wrote:I would be real curious how much more a ULA launch costs over a SpaceX launch.
Axiom-1 just docked at ISS. Docking delayed by communications difficulties. Dragon voice comms were getting cut off, resolved by crew delaying speech after pushing talk switch. Then ISS crew was not receiving Dragon centerline camera views, resolved by waiting for a pass over a SpaceX ground statio...Jump to post
How would you expect it to go if brakes on one side locked? Would locked wheels or wheels with properly operating brakes have more traction? Locked wheels have less traction, properly working brakes and rotating wheels have more traction. ABS in cars is based on this principle: it reduces brake pre...Jump to post
A bomber that you can see on radar 500 miles away would probably not get to target or return home to be reused very often. It takes more than a few trucks of fuel to fill a Starship for the return trip, and the methane and LOX need to be much higher grade than normal gas plants can put out. But the...Jump to post