SpaceX specs Falcon 9 at 68.4m (224.4 feet). What does this mean?1) The combined height of the first and second stages only?2) The height of an F9 with Dragon?3) The height of an F9 with a satellite PLF?
Quote from: Dave G on 01/05/2015 08:04 amSpaceX specs Falcon 9 at 68.4m (224.4 feet). What does this mean?1) The combined height of the first and second stages only?2) The height of an F9 with Dragon?3) The height of an F9 with a satellite PLF?From measurements I think its 3.
Quote from: Ohsin on 01/05/2015 08:21 amQuote from: Dave G on 01/05/2015 08:04 amSpaceX specs Falcon 9 at 68.4m (224.4 feet). What does this mean?1) The combined height of the first and second stages only?2) The height of an F9 with Dragon?3) The height of an F9 with a satellite PLF?From measurements I think its 3.Then measuring this picture, and scaling for 224.4 feet, it looks like the first stage is 163 feet tall, with the interstage, but without legs.
This is not very good picture for reference. Vandenberg pictures are pretty good as they are taken from a height. Also did you use diameter(12ft) or fairing height(43ft) to deduce?
Yes it does include inter stage. With cap I meant the cone part onto which crane hooks. Now I wonder how it will get unloaded without it..
Quote from: Ohsin on 01/05/2015 09:08 amThis is not very good picture for reference. Vandenberg pictures are pretty good as they are taken from a height. Also did you use diameter(12ft) or fairing height(43ft) to deduce?I measured the total height and the height of the first stage, and then scaled for a total height of 224.4 feet.The camera angle creates a linear perspective which should scale both measurements equally, unless there are fish-eye type lens distortions, which this picture doesn't appear to have.
Would trust SpX has already done this math, way before they leased the dock side land & installed the F9 supports.
Quote from: Ohsin on 01/05/2015 07:53 amYes it does include inter stage. With cap I meant the cone part onto which crane hooks. Now I wonder how it will get unloaded without it..That cap won't be there. After the second stage departs, the top of the interstage is an empty tube which used to contain the Merlin 1D Vacuum engine and its nozzle. That empty space is a cylinder about 15-20 feet deep, and close to 12 feet across. Look at the recent pictures of the interstage with the grid fins extended to get the idea.Which of course begs the question of what exactly they are going to connect the crane hook too. They have to have something, since they did something similar for the stage acceptance tests back in MacGregor (though the interstage might not have been present there).
Quote from: Ohsin on 01/05/2015 07:53 amYes it does include inter stage. With cap I meant the cone part onto which crane hooks. Now I wonder how it will get unloaded without it..Maybe that is the intended use of the white adapter that was sitting in front of the 4 x Grey/Blue F9 supports? Bolts into the interstage to allow the F9 to be crane lifted?
Last launch attempt, both ships apparently turned their AIS transponders off shortly after leaving port. Wonder why this time is different.
Quote from: Kabloona on 01/05/2015 12:29 pmLast launch attempt, both ships apparently turned their AIS transponders off shortly after leaving port. Wonder why this time is different.Maybe they didn't. Maybe we just didn't have anyone track them on the vesselfinder.com site? They dropped off the marinetraffic.com site at about the same point as we lost them on the previous attempt.
Quote from: deruch on 01/05/2015 12:37 pmQuote from: Kabloona on 01/05/2015 12:29 pmLast launch attempt, both ships apparently turned their AIS transponders off shortly after leaving port. Wonder why this time is different.Maybe they didn't. Maybe we just didn't have anyone track them on the vesselfinder.com site? They dropped off the marinetraffic.com site at about the same point as we lost them on the previous attempt. Yes, last time I checked periodically on the Marine Traffic app and they were offline for the entire time at sea. This time they are still online with Marine Traffic, so something is different.