Hot answers tagged

26

What is the cost to NASA per launch to ISS of Starliner vs Crew Dragon? According to a 2019 report by NASA's Office of the Inspector General (OIG), the launch costs are (in million\$): Vehicle cost per astronaut cost per launch SpaceX Crew Dragon 55 209 Soyuz MS 86 Boeing CST-100 Starliner 90 345 So, out of the three vehicles currently being used to ...


4

What are the particular reasons that the Dragon Capsule is not communicating via Starlink... As @JörgWMittag points out the capsule orbited at an altitude higher than the Starlink satellites. The Starlinks currently have three types of internet-related communication: downwards with customers fixed on the Earth's surface below the satellites (except an ...


3

As geoffc said, the Falcon Heavy is not mainly assembled on the TEL. To elaborate, the upper rings are removed while the lower remains when the booster mating process begins. When the boosters are all mated, the second stage is then mated using the rings and the rollers. Afterwards, the entire structure is lifted using 4 spreader beams. (3 bottom, 1 top) ...


3

The view of the stars from inside a capsule (with nonzero ambient light from the interior and limited window size and reflections off the windows) is no better than gazing at the stars from Earth on a nice dark hilltop away from towns. Nice, but nothing to go nuts about. You may have removed the interference of Earth atmosphere, but you put a thick glass ...


3

It is my understanding that 6 bar is the design pressure (max pressure) of the main tanks. I've seen a higher design pressure of 8.5 bar reported for human rated missions. Pressure at the engines will inevitably vary. It is known that Starship uses "balloon tanks" that require some minimum pressure inside them to prevent buckling under structural ...


2

Why should it intuitively be opposite? They carry out different functions. The base is a very rigid structure with 3 attachment points to the OLIT, and is only subject to tension - so is very strong by its very nature. The claw does not have that inherent strength - it has one pivot point and the free end is unsupported, so it has torsion (twisting) as well ...


2

Why audio/video on the Dragon Capsule are on separate streams / limited bandwidth? @uhoh's answer gives insight into the practical reasons for separating audio and video streams. An apparent example of these broadcast characteristics can be seen in the Inspiration 4 live orbit broadcast starting at about 10:17 I have not ...


Only top voted, non community-wiki answers of a minimum length are eligible