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Forum: Rumours & News

13th Nov 2014, 18:07

Replies: 281

Virgin Galatic Spaceship Two down in the Mojave.

Views: 222,272

Posted By RichardC10

In the SS2 powered flight video below, the...

In the SS2 powered flight video below, the feather deployment (not unlock) command is given at very low speed.

Virgin Galactic's Second Rocket Powered Flight Tail Footage - YouTube

It's...

Forum: Rumours & News

11th Nov 2014, 17:35

Replies: 281

Virgin Galatic Spaceship Two down in the Mojave.

Views: 222,272

Posted By RichardC10

I wonder if when the design was scaled up from...

I wonder if when the design was scaled up from SS1 to SS2, the locks went from a nice to have/safety feature to being absolutely vital to control the feathers in the critical Mach region. It’s...

Forum: Rumours & News

7th Nov 2014, 15:23

Replies: 281

Virgin Galatic Spaceship Two down in the Mojave.

Views: 222,272

Posted By RichardC10

I thought Virgin Galactic were not going to be...

I thought Virgin Galactic were not going to be commenting on the causes of accident.

Anyway, the quote is pretty clear. Move the unlock handle in a regime where the net aerodynamic forces work in...

Forum: Rumours & News

6th Nov 2014, 07:21

Replies: 281

Virgin Galatic Spaceship Two down in the Mojave.

Views: 222,272

Posted By RichardC10

@janrein Agreed that transonic loads could be...

@janrein
Agreed that transonic loads could be highly non-linear. However, the locks are out during the period the speed is reducing through the transonic regime in the test flights, though...

Forum: Rumours & News

5th Nov 2014, 10:09

Replies: 281

Virgin Galatic Spaceship Two down in the Mojave.

Views: 222,272

Posted By RichardC10

@funfly The video of the 2013 second...

@funfly

The video of the 2013 second powered flight does not suggest a significant climb during the powered phase of that flight. The unlock call on that flight occurs during powered flight and...

Forum: Rumours & News

5th Nov 2014, 05:19

Replies: 281

Virgin Galatic Spaceship Two down in the Mojave.

Views: 222,272

Posted By RichardC10

Stability of feathers against aerodynamic forces

If the hydraulics on the feathers can be overpowered by the aerodynamic forces (with the locks off) it’s odd that a system that would fail at Mach 1.02 is judged fully competent, with margin, at Mach...

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