Problem DG to ISS, degrees of pitch for climb and launch heading?

[Grover]

i think ive found a good idea!

you keep reffering to speed wrong, when TAS= 200, thats not 200 Km/h, its 200m/s, all figures in orbiter are given in SI units (seconds, meters etc) and any multiplier is given by a K,M or G before the figure (altitude of 300Km is shown as 300k)

this led me onto another point: the speed is TAS not IAS, if it were IAS, you could hold that same IAS all the way through the atmosphere, but since its TAS it doesnt reflect your airfoil/wing effectivness on its own. in the stock DG, its ALWAYS better to be faster then normal on ascent, since you dont have to worry about overheating or fuel (the DG has enough fuel to get you almost anywhere in the solar system)

keep at it, use RCS all the time (make sure its ROT not LIN, ROT is rotational, and LIN is for small course adjustments during docking etc) and keep the speed really high, high enough to adjust your pitch quickly throughout the entire ascent

i dont use trim, because i use a joystick and i dont like taking my hands away from important controls when i can just pull back a little, you'll find your own way of doing things, maybe not the same as everyone else, i learned in the DGIV, watching the autopilot to get the basics, then copying it myself

good luck man
-=Grover=-

 

[rocketdued]

ah ok. i'll see if i can make the sims recoder work to let you guys see what im seeing. and as for speed i'll see how much i can get befor turning or climbing.

 

[Weirdo Earthtorch]

Gimbal main engines

You can also gimbal the main engines if you want as you get higher - another way of keeping the nose up . You can see the gimbal controls on the top left of the panel in Aedar's pictures. Don't forget to reset to centre after ascent though!

I think there are also a couple of add-ons that enable main engine gimballing with joystick (or numpad) input too.

 

[rocketdued]

yeah i seen those but never tried them out. maybe i'll give those a shot to and what happens.

---------- Post added at 03:22 PM ---------- Previous post was at 02:56 PM ----------

i think i might actuly have it heading into space. im no where near the heading for the space station. but houston i think we might have it. i been messing with the trim and engine gimbles. im hopeful

 

[rocketdued]

ok. i just tried the flight again and i used the recorder in orbiter. and i went to the scenarios/playback. and this is what it gave me. now ya'll can blame me the machine the set up the controls what ever. but if this playback works you'll see what im talking about the way the deltagliders flying.

 

[Mrev95]

You will then need to make a post on the forums with four files as attachments, they are:

[your orbiter directory]\Scenarios\Playback\Mission 1 - DG to ISS.scn
[your orbiter directory]\Flights\Mission 1 - DG to ISS\GL-01.atc
[your orbiter directory]\Flights\Mission 1 - DG to ISS\GL-01.att
[your orbiter directory]\Flights\Mission 1 - DG to ISS\GL-01.pos

To upload the atc, att, and pos files as attachments you'll need to make a copy with .txt added to the end of the file name (e.g: GL-01.atc.txt), or the forum won't accept them.

We need all these files...

 

[rocketdued]

well thats all that was in my playback folder.

 

[Mrev95]

They're not in your playback folder. They're in [your orbiter folder]\flights\Mission 1 - DG to ISS

 

[garyw]

There will be several files so we need anything named [your vehice]. e.g. if your vehicle is the GL-01 please attach any files with the name GL-01 from the Flights\[scenario name] folder.

They will be generated when you press ctrl+c to start recording.

 

[rocketdued]

......

 

[garyw]

at 65KM you are only going mach 5. Thats way too slow for the thiner atmosphere. You need to keep the nose lower, build up speed to around mach 10-12 then climb again.

As you are a flightsim person think of it as step-climb.

 

[rocketdued]

i tried that. i had it balls to wall if you will. and it still handled just like you seen right there. this has been what i have been trying to tell you for over a month. NOW do you see it's NOT my computer? it's not that im not reading the posts and putting it into practice cause i am. i know the same phyiscis here don't apply like they do to my cessna. but atleast NOW you see what i have been telling you RIGHT?

 

[Mrev95]

Could you post a playback of a "balls to the wall" ascent then?

 

[rocketdued]

:lol: thats what that was. and you seen how unstable the ship was. i had the rcs up and every thing and it still went wild.

 

[Mrev95]

Try pitching down a little sooner then, to start accelerating horizontally. I usually start pitching down at about 25km. You're going up to quickly

 

[rocketdued]

yeah tried that to and according to the tas it was only doing 329kmh wouldn't go any faster and that was completely leavel to horizen.

 

[garyw]

This is what I was saying above. You are too high and too slow. That second pitch up is causing a lot of problems.

Altitude, speed, altitude, speed, speed, speed. You need to be going 7km/s to mantain an orbit.

---------- Post added at 17:05 ---------- Previous post was at 17:04 ----------

yeah tried that to and according to the tas it was only doing 329kmh wouldn't go any faster and that was completely leavel to horizen.

329 km an hour? It goes faster than that at takeoff. You are getting your units confused.

 

[rocketdued]

:lol: the second pitch up was the deltaglider not me.

 

[Urwumpe]

"Balls to the wall" means just full thrust. There are not many spacecraft that reach orbit good with less than full thrust.

Since I doubt, you reach 100g acceleration around sea-level, which could really make Orbiters aerodynamic calculations become chaotic (because the numerical solver does no longer converge), the cause must be related to pilot actions.

---------- Post added at 06:11 PM ---------- Previous post was at 06:09 PM ----------

329 km an hour? It goes faster than that at takeoff. You are getting your units confused.

329 m/s is also damn slow, just around Mach 1.

 

[rocketdued]

LOCK PLEASE tex? thank you.