Hello Greg Chalik,
 
When there is no other choice than to land the pilot tries to land somewhere that he and by extension the survivors can walk a way from the crash/landing site. In Crisis of Empire book 1: An Honorable Defense by David Drake and Thomas T. Thomas a warship not intended for landing on planetary surfaces through a systems failure was able to make a relatively soft landing in a shallow sea. Yes there was damage and hull breaches but the ship could still fire weapons, okay some weapons. The alternative of  course was making a great big crater killing both friendly and unfriendly folk in the area.
 
In the book they were able to make repairs and get the ship back into space. I'm not sure a Tigress-class Dreadnaught would be able to get back into space.
 
Tom R

From: "Greg Chalik" <mrg3105@gmail.com>
To: "TML" <xxxxxx@simplelists.com>
Sent: Friday, February 12, 2016 1:12:39 PM
Subject: Re: [TML] Instant city

Craig, the Tigress hull shape is just wrong for planetary surfaces. And, its a partial sphere.

How does one land a ship not designed for it?

On 13/02/2016 7:57 AM, "Craig Berry" <xxxxxx@gmail.com> wrote:
I'm picturing that wherever it landed, and even however gently, the lowest (relative to planet) parts of the ship would be unusable. First, the ship structure isn't designed to bear the dead weight of the ship resting on some part of the hull under ~1g, so you'd expect some deformation, perhaps even crumpling, which would extend to deformation of nearby interior compartments. Second, the ship would settle rather deep into the ground (or lakebed, or whatever), and water, soil, and life would get in through the deformation cracks. I'd expect the very bottom of the ship to be a dirty, flooded mess.

I picture various stairways and ladders being built to reach the undamaged, unflooded access hatches nearest the ground.

On Fri, Feb 12, 2016 at 12:46 PM, Greg Chalik <mrg3105@gmail.com> wrote:

Yes, I was thinking this as about the only case for a major capital warship to be found alone, other than during basing transfers.

The number of variables that come with this are too great, including ability to resist planetary gravity during crash-landing.

Then there is hull integrity. Landing in water (ideal) would cause flooding, and I'm not sure bulkheads built for atmospheric containment would serve equally well against water, and for how long.

Cheers

Greg

On 13/02/2016 2:20 AM, "Jeffrey Schwartz" <xxxxxx@gmail.com> wrote:
On Fri, Feb 12, 2016 at 3:04 AM, Greg Chalik <mrg3105@gmail.com> wrote:
> Tom,
>
> Are you saying that even at TL15 the IN has no way to track its warships?
>
> Cheers
>
> Greg
>

I could see a Tigress jumping out of a battle with heavy damage,
misjumping 36 parsec from the planned RV point, and being presumed
destroyed rather than "lost"

If they were jumping while keeping the Black Globe up, it might be
hard to tell the difference between Jump Flash and the nuclear
missiles going off near the globe.
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Craig Berry (http://google.com/+CraigBerry)
"Eternity is in love with the productions of time." - William Blake
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