All Questions
Tagged with launch-sequencelaunch-vehicle
4 questions
0votes
1answer
239views
Why hasn't SpaceX performed a Wet Dress Rehearsal of Starship if they are ready to fly?
SpaceX claims that "The Starship and Super Heavy vehicles for Flight 5 have been ready to launch since the first week of August." SpaceX usually performs Wet Dress Rehearsals (WDRs) before ...
4votes
1answer
1kviews
Why doesn't Ariane-5 lift off at T=0 seconds?
I have seen Ariane-5 lift off at T+07 seconds and not at (or close to) T=00 seconds. The following statement is from the Ariane-5 User's Manual (Page 35, Section 2.3 - Typical Mission Profile): The ...
- 3,356
14votes
1answer
2kviews
What exactly is the purpose of connection links strapped between the rocket and the launch pad
I am curious on what are those multiple connection cables latched between the rocket and launch pad. What exactly is the purpose of it, I am aware that one should be for filling up the fuel. But ...
3votes
1answer
210views
Fuel-optimal thrust profile for an orbital ascent on a planet with an atmosphere
This is a continuation of a previous question posted a few months ago. If we consider a SSTO vehicle launching from a planet with an atmosphere, would it be fuel optimal to have a period of lowered ...
- 1,612
