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by Giorgio
Sun Apr 07, 2019 9:56 am
Forum: News
Topic: EM Drive
Replies: 674
Views: 212967

Re: EM Drive

williatw wrote:The impact of EmDrive on Future Warfare


Roger Shawyer SPR Ltd


Roger Shawyer is becoming the Randell Mills of 21st century..... :roll:
by Giorgio
Sat Mar 02, 2019 9:02 am
Forum: News
Topic: SpaceX News
Replies: 2257
Views: 406639

Re: SpaceX News

Successful launch and first stage landing. I love this boring stuff!
by Giorgio
Sun Jan 20, 2019 9:50 am
Forum: News
Topic: Small Tri Alpha news blurp
Replies: 181
Views: 79927

Re: Small Tri Alpha news blurp

https://www.nature.com/articles/s41567-018-0389-0.epdf?author_access_token=R2uYId8rlXaECcWcbWkOItRgN0jAjWel9jnR3ZoTv0MG_SQq2nvFNm7Qh08h388r5NPvtxkiUxPtWnWFcALwelg9ZBPif0vVq4GLgvy1EKJ6mN0jKfkoQm6Ylej4apkFKJ_6h87xfWy8dWGLGWmyhA%3D%3D A newly published paper in Nature Physics reporting breakthrough re...
by Giorgio
Wed Jan 16, 2019 7:41 pm
Forum: News
Topic: SpaceX News
Replies: 2257
Views: 406639

Re: SpaceX News

choff wrote:Saw a report SpaceX is laying off 10% of the workforce.

As any seasoned farmer can confirm, regularly pruning a tree keeps it healthy and spurs fresh growth in the remaining branches.
by Giorgio
Sun Jan 13, 2019 9:41 am
Forum: News
Topic: SpaceX News
Replies: 2257
Views: 406639

Re: SpaceX News

As you said payload would be smaller. If I remember correctly the total mass ratio difference for a DV=7.5km/sec with a 300 ISP fuel for a SSTO to a TSTO would be roughly 20 (SSTO) to 5 (TSTO). That means you loose 4 times the amount of mass you can bring to a DV=7.5Km/sec. And because the "mas...
by Giorgio
Thu Dec 27, 2018 7:44 pm
Forum: News
Topic: EMC2 news
Replies: 411
Views: 150841

Re: EMC2 news

So, any consensus on the contents of the patent application document from those who are knowledgable enough to be able to speak about it in an informed manner? Your thoughts Tom Ligon? or ??? It's quite an interesting patent and opens a plethora of possible different road to a commercial product (b...
by Giorgio
Tue Dec 04, 2018 11:03 am
Forum: News
Topic: SpaceX News
Replies: 2257
Views: 406639

Re: SpaceX News

jnaujok wrote:I see a trend among Elon companies:
SpaceX: making space be boring.
The Boring company: making space by boring.

LMAO :D
by Giorgio
Thu Nov 29, 2018 5:09 pm
Forum: News
Topic: EMC2 news
Replies: 411
Views: 150841

Re: EMC2 news

From a quick read it seems a really interesting cat.
by Giorgio
Sun Nov 18, 2018 9:14 am
Forum: News
Topic: SpaceX News
Replies: 2257
Views: 406639

Re: SpaceX News

Sorry guys , no little green men or super secret squirrel satellite. It is oxygen ice from inside the nozzle on stage two when the turbo pump runs a pre-chill cycle before startup, hence the blueish hue to it. :mrgreen: It falls on top of stage one then falls off. Also stage one pre cools before f...
by Giorgio
Sun Nov 18, 2018 9:13 am
Forum: News
Topic: SpaceX News
Replies: 2257
Views: 406639

Re: SpaceX News

Duplicate post.
by Giorgio
Fri Nov 16, 2018 8:31 pm
Forum: News
Topic: SpaceX News
Replies: 2257
Views: 406639

Re: SpaceX News

S1 MECO is at T= +2:40. I am speaking about the object at T=+6:02. Also at that moment the S1 is no where near stable orbital altitude, but that object does look quite big and it doesn't really look like a piece of ice. IIRC, the 1st stage would peak in altitude somewhere below 120 km. Unlikely to ...
by Giorgio
Fri Nov 16, 2018 4:20 am
Forum: News
Topic: SpaceX News
Replies: 2257
Views: 406639

Re: SpaceX News

S1 MECO is at T= +2:40. I am speaking about the object at T=+6:02. Also at that moment the S1 is no where near stable orbital altitude, but that object does look quite big and it doesn't really look like a piece of ice.
by Giorgio
Fri Nov 16, 2018 1:02 am
Forum: News
Topic: SpaceX News
Replies: 2257
Views: 406639

Re: SpaceX News

At T = +6:02 it seems like a very near miss with some other (fairly big) object.Maybe it was just some space trash or an active object, but it was in my understanding that anything orbiting earth bigger than 1 meter was supposed to be under constant monitoring, so I get to wonder how that object man...
by Giorgio
Sat Sep 22, 2018 9:29 am
Forum: News
Topic: SpaceX News
Replies: 2257
Views: 406639

Re: SpaceX News

Maybe you meant "more than 10% of the F9 first stage"? Added weight to the first stage does not really affect payload mass as much. It is more relevant for the BFS though, which is a second stage and there every added kg means a kg less payload. Yes, that's what I meant to say. Poor wordi...
by Giorgio
Fri Sep 21, 2018 8:05 pm
Forum: News
Topic: SpaceX News
Replies: 2257
Views: 406639

Re: SpaceX News

Pathological skepticism is great! I think everyone could use more skepticism. I am comforted that you all are not concerned by this design change, though no one has really addressed how such a large surface area can be reliably/safely actuated at hypersonic speeds. In all fairness I don't think any...

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