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Search: Posts made by: David Spain
Forum: Policy October 27th 18, 06:08 PM Posted to sci.space.policy
Replies: 15
Views: 123
Posted By David Spain
US Air Force explores space-based cargo operations, confirmstalks with SpaceX

On 10/26/2018 7:51 PM, Jeff Findley wrote:
In article ,
says...

"As for what space cargo operations could look...
Forum: Policy October 15th 18, 05:53 AM Posted to sci.space.policy
Replies: 51
Views: 291
Posted By David Spain
Soyuz Rocket Launch Failure Forces Emergency Landing of Soyuz!

Russian investigation proceeds today...

http://tass.com/science/1025869

Dave
Forum: Policy October 15th 18, 05:28 AM Posted to sci.space.policy
Replies: 51
Views: 291
Posted By David Spain
Soyuz Rocket Launch Failure Forces Emergency Landing of Soyuz!

On 10/15/2018 12:26 AM, David Spain wrote:
On 10/11/2018 9:19 AM, Greg (Strider) Moore wrote:
"Jeff Findley"* wrote in message
...
Forum: Policy October 15th 18, 05:26 AM Posted to sci.space.policy
Replies: 51
Views: 291
Posted By David Spain
Soyuz Rocket Launch Failure Forces Emergency Landing of Soyuz!

On 10/11/2018 9:19 AM, Greg (Strider) Moore wrote:
"Jeff Findley"* wrote in message
...


Soyuz Rocket Launch Failure Forces...
Forum: Policy October 15th 18, 05:15 AM Posted to sci.space.policy
Replies: 8
Views: 114
Posted By David Spain
There’s a new report on SLS rocket management, and it’s pretty brutal

When your highest priority is astronaut safety, SLS (so far) has been
100% successful. Ground crew? Well maybe that's not NASA's highest
priority. But so far, so good.

/sarc

Dave
Forum: Policy August 21st 18, 04:46 AM Posted to sci.space.policy
Replies: 30
Views: 454
Posted By David Spain
Load and Go a Go

On 8/20/2018 8:14 PM, Fred J. McCall wrote:
I don't think I mention this before, but it looks like NASA has
approved the SpaceX 'load and go' fueling plan for manned vehicles.
All they'll have...
Forum: Policy August 14th 18, 05:29 AM Posted to sci.space.policy
Replies: 62
Views: 556
Posted By David Spain
Discussion on sci.space.science

On 8/14/2018 12:25 AM, David Spain wrote:
Not a good time for pie in the sky with me.

Dave

It doesn't help that on every clear night this month I can look up in
the east and see Mars,...
Forum: Policy August 14th 18, 05:25 AM Posted to sci.space.policy
Replies: 62
Views: 556
Posted By David Spain
Discussion on sci.space.science

On 8/1/2018 7:43 PM, Alain Fournier wrote:

Jeff Findley and I have been having on sci.space.science a discussion
about water on Mars and terraforming Mars, that I appreciate very much.
...
Forum: Policy May 18th 18, 10:12 PM Posted to sci.space.policy
Replies: 16
Views: 397
Posted By David Spain
Continuing drop in prices?

On 5/17/2018 5:23 PM, Fred J. McCall wrote: If that report is true and
SpaceX can achieve the kind of launch rates they're talking about (60+
launches per year), they are going to ow the space...
Forum: Policy May 4th 18, 02:39 PM Posted to sci.space.policy
Replies: 16
Views: 453
Posted By David Spain
Orbital Gravity Lab?

On 5/4/2018 6:14 AM, Fred J. McCall wrote:

You'll need some reaction wheels to control pointing and some engines
to unload the reaction wheels when they become saturated. Think about
the...
Forum: Policy May 4th 18, 02:22 PM Posted to sci.space.policy
Replies: 16
Views: 453
Posted By David Spain
Orbital Gravity Lab?

Another thing we just don't know, is whether it is good enough to have
limited exposure to 'g' to overcome the deficits of long duration in 0g
or low g. Thus it becomes routine to spend some time...
Forum: Policy May 4th 18, 02:14 PM Posted to sci.space.policy
Replies: 16
Views: 453
Posted By David Spain
Orbital Gravity Lab?

On 5/4/2018 1:34 AM, Fred J. McCall wrote:
Alain Fournier wrote on Thu, 3 May 2018
20:56:01 -0400:

On May/3/2018 at 8:30 PM, Fred J. McCall wrote :

...
Forum: Policy May 4th 18, 02:12 PM Posted to sci.space.policy
Replies: 16
Views: 453
Posted By David Spain
Orbital Gravity Lab?

On 5/3/2018 8:30 PM, Fred J. McCall wrote:
David Spain wrote on Thu, 3 May 2018 18:00:04
-0400:

On 5/3/2018 2:07 PM, JF Mezei wrote:
On 2018-05-03 11:23, David Spain...
Forum: Policy May 3rd 18, 11:00 PM Posted to sci.space.policy
Replies: 16
Views: 453
Posted By David Spain
Orbital Gravity Lab?

On 5/3/2018 2:07 PM, JF Mezei wrote:
On 2018-05-03 11:23, David Spain wrote:
What would it take to get such a thing in orbit? Are there any
*knowledgeable* readers left in sci.space.policy...
Forum: Policy May 3rd 18, 04:23 PM Posted to sci.space.policy
Replies: 16
Views: 453
Posted By David Spain
Orbital Gravity Lab?

What would it take to get such a thing in orbit? Are there any
*knowledgeable* readers left in sci.space.policy that can comment on
this (Fred, Jeff and Greg excluded)?

In my un-humble opinion...
Forum: Policy April 28th 18, 08:35 PM Posted to sci.space.policy
Replies: 63
Views: 838
Posted By David Spain
Space X 2nd stage recovery

On 4/28/2018 2:29 PM, JF Mezei wrote:
On 2018-04-28 12:30, Jeff Findley wrote:

Adding a service module to Dragon, in place of the simpler trunk, would
be possible, but it would be adding...
Forum: Policy April 25th 18, 06:56 PM Posted to sci.space.policy
Replies: 63
Views: 838
Posted By David Spain
Space X 2nd stage recovery

On 4/24/2018 5:54 PM, Fred J. McCall wrote:
JF Mezei wrote on Tue, 24 Apr 2018
16:36:20 -0400:

On 2018-04-24 14:21, David Spain wrote:

I am of the...
Forum: Policy April 25th 18, 03:51 PM Posted to sci.space.policy
Replies: 63
Views: 838
Posted By David Spain
Space X 2nd stage recovery

On 4/24/2018 4:36 PM, JF Mezei wrote:
On 2018-04-24 14:21, David Spain wrote:

I am of the opinion that the existing F9 and F9H architectures will be
(crew-wise) underutilized.


...
Forum: Policy April 24th 18, 07:21 PM Posted to sci.space.policy
Replies: 63
Views: 838
Posted By David Spain
Space X 2nd stage recovery

On 4/24/2018 7:10 AM, Jeff Findley wrote:
I'm glad they're working on upper stage recovery. My guess is that
BFR/BFS will take a bit longer than Elon's aspirational schedule
products. As...
Forum: Policy April 20th 18, 07:14 PM Posted to sci.space.policy
Replies: 68
Views: 953
Posted By David Spain
BFR early next year.

On 4/20/2018 2:09 PM, David Spain wrote:
On 4/20/2018 1:57 PM, David Spain wrote:
On 4/20/2018 12:50 PM, Niklas Holsti wrote:
On 18-04-20 18:58 , David Spain wrote:

The initial...
Forum: Policy April 20th 18, 07:09 PM Posted to sci.space.policy
Replies: 68
Views: 953
Posted By David Spain
BFR early next year.

On 4/20/2018 1:57 PM, David Spain wrote:
On 4/20/2018 12:50 PM, Niklas Holsti wrote:
On 18-04-20 18:58 , David Spain wrote:

The initial emphasis I believe will be on the BFR first stage....
Forum: Policy April 20th 18, 06:57 PM Posted to sci.space.policy
Replies: 68
Views: 953
Posted By David Spain
BFR early next year.

On 4/20/2018 12:50 PM, Niklas Holsti wrote:
On 18-04-20 18:58 , David Spain wrote:

The initial emphasis I believe will be on the BFR first stage. Getting
it up and down.

Can you point...
Forum: Policy April 20th 18, 04:58 PM Posted to sci.space.policy
Replies: 68
Views: 953
Posted By David Spain
BFR early next year.

On 3/16/2018 4:15 PM, Jeff Findley wrote:

Block 1 will almost certainly not be Mars landing capable.

If the OD (outer diameter) of the
fuselage stays constant that might mean the...
Forum: Policy April 20th 18, 02:23 PM Posted to sci.space.policy
Replies: 63
Views: 838
Posted By David Spain
Space X 2nd stage recovery

On 4/19/2018 6:26 PM, Fred J. McCall wrote:
JF Mezei wrote on Thu, 19 Apr 2018
18:07:43 -0400:

On 2018-04-19 16:20, David Spain wrote:

Yes I agree. I...
Forum: Policy April 19th 18, 09:20 PM Posted to sci.space.policy
Replies: 63
Views: 838
Posted By David Spain
Space X 2nd stage recovery

On 4/17/2018 3:19 PM, Greg (Strider) Moore wrote:
https://www.space.com/40313-spacex-rocket-landing-giant-party-balloon.html

I find this interesting for a couple of reasons.

The approach...
Showing results 1 to 25 of 500

 
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