Hi All
Just tried out some high (ish) landings & take offs on a reasonably high gravity planet, just for interest.
Stats....
Imperial Cutter, total mass 4536.0 T (Loaded up the cargo bay with 380 T of commodities to gain maximum weight)
System Tetrian.
Tetrian 3, Gravity 3.43g
So I landed on the surface reasonably okay (ground landing as there's no star ports on planet). When I got down to about 1km above the surface I stopped any forwards / backwards movement and just used my vertical thrusters to gradually propel the ship downwards.
That's when the fun starts. A very quick 'blip' on downward thrusters has the ship careering for the deck, using upward thrusters to counteract the movement takes a longer time, a lot longer, in fact I had to hold down the button for upward thrust until some sort of equilibrium was achieved. This put me about 144 metres above the surface. Any attempt to use the downward thrust button, below this height, however short the 'blip' had the Cutter hitting the deck quite hard, and the shields took a very slight bit of damage. One blip 'down' immediately followed by holding down the up thrust button gained some control, but not what you'd call perfect.
I played about with this for awhile, but until I raised the cutter about 300 metres above the surface there wasn't much control in bringing it down softly. Looking for a suitable place to land just complicated matters more, you have to gain some height to see the blue circle, and to get the ship at the right angle etc. This sounds easy, trouble is you've also got to control the Cutters death wish to belly butt the ground.

Eventually with practice I could generally get the Cutter to land reasonably well without any damage, or loss in shield strength....
Taking off was easier though. First I tried using only the up thrusters, very, very slow to respond initially, and I had to keep my finger pressed on the button until the Cutter got at least well above that 144 metre mark, maybe a bit more, any less and the Cutter would just start coming down again (building up speed) as soon as I released the button for upward thrust. A combination of upward thrust, tilting the ships nose upward and slowly pushing the main throttle forward was more controllable than thrusters alone.
Mass must (obviously?) come into the equation, the bigger the mass of the ship the harder it is to control. One other thing I noticed was that putting 4 pips to engines didn't make much difference (if any) when using just the up / down thrusters after you are less than 200 metres above the surface. Four pips to shields seems a much better idea imho.

Makes me wonder if the pips to engines are more or less tied in with
Main Thrusters, and hasn't any affect on side or bottom
/ top thrusters

Anyhow, I'm going to at some point try the same method on a planet double or more the g's of Tetrian 3, with again the same ships mass....will I even get off the surface once I've landed?
Jack
