Print

Please login or register.
1 Hour 1 Day 1 Week 1 Month Forever
Login with username, password and session length

[Techhead]

By the way, if you want proof that gravity turns give more delta-v, I did some tests with my demo copy of KSP. My SSTO test rocket on full burn, straight up, gave me an apoapsis of 1630 km, with a very eccentric orbit. It took me a couple of tries, but one flight profile (full burn with a gradual gravity turn) managed to get an apoapsis of 1988 km, in a more circular orbit. Granted, the 1988 flight had an periapsis below ground level, but not by much.

[LoSboccacc]

I think pre .17 have a bug on fuel consumption so that it is non linear
100% throttle -> 100% fuel -> 100% power
10% throttle -> 1% fuel -> 10% power

don't know when it was introduced first and if demo is affected

[Sean Mirrsen]

I think pre .17 have a bug on fuel consumption so that it is non linear
100% throttle -> 100% fuel -> 100% power
10% throttle -> 1% fuel -> 10% power

don't know when it was introduced first and if demo is affected

Introduced in .16, fixed in .17, demo not affected.

[ank]

So the rocket in that graph only burns for like 5 seconds? then throttles down to almost nothing, I assume just maintaining speed? then throttles slowly up.

Some Newtonian calculations gives us a speed of 196m/s when the throttle down happens.(assuming burning for 5 sec at 4 G)
We need to find that number in KSP. Anybody know what math KSP uses to determine air resistance and gravity drag?

More testing will be required!

[Techhead]

No, I was on full burn until fuel ran out, on every test flight. When I said 'leveling off', I meant that I turned towards horizontal as I gained altitude. I guess I was using the term incorrectly, I should have been calling it a pitch over maneuver. Leveling off is when you make the final turn towards horizontal.

I really recommend using gravity turns if you are worried about fuel consumption during lift offs and landings.

[MarcAFK]

Heh, i just saw thagt reliant robin episode of top gear, it's KSP to a tee, including bodgy backyard rocketry, a short guy, a stupid launch failure, and a bigass explosion.

[LoSboccacc]

And a reliant robin 

The faces of the rocketry club people! Awesome.

[Kanil]

Ugh, spaceplanes are endlessly frustrating. I start with one that flies quite well, and just generally works, but it has insufficient fuel to make it to orbit.

I add more fuel tanks, adjust accordingly to maintain balance... then discover that it inexplicably doesn't drain fuel correctly, with the left front tank emptying before the right front, and the craft spiraling out of control.

Cue reworking fuel lines... and testing, and reworking, over and over. I disassembled the entire thing, removed every fuel line, put it back together and it still didn't work.

I finally give up and just fly with a few less lines, it's less efficient but it "works". I'm not sure if I put it all back together right, because now it's highly twitchy and doesn't fly well. After a few crashes, I get going and discover I still don't have enough fuel for orbit. Commence crying.

At least I got a nice screenshot out of it, though!

Spoiler: Screenshot (click to show/hide)

To the mun!

[ank]

I might be overdoing it:

Spoiler (click to show/hide)

[Graknorke]

I might be overdoing it:

Spoiler (click to show/hide)

Nonsense, no such thing.
If anything, I'd say the space section needs MORE BOOSTERS. Unless there's no problems, then that's fine.

[Sean Mirrsen]

I might be overdoing it:

Spoiler (click to show/hide)

Nonsense, no such thing.
If anything, I'd say the space section needs MORE BOOSTERS. Unless there's no problems, then that's fine.

There's no "overdoing it" in KSP. Just "Fire the engines!" and "Hit the next stage!".

[Graknorke]

I might be overdoing it:

Spoiler (click to show/hide)

Nonsense, no such thing.
If anything, I'd say the space section needs MORE BOOSTERS. Unless there's no problems, then that's fine.

There's no "overdoing it" in KSP. Just "Fire the engines!" and "Hit the next stage!".

Let's not forget the ever-present "Add more struts!" either.

[Ultimuh]

I might be overdoing it:

Spoiler (click to show/hide)

Nonsense, no such thing.
If anything, I'd say the space section needs MORE BOOSTERS. Unless there's no problems, then that's fine.

There's no "overdoing it" in KSP. Just "Fire the engines!" and "Hit the next stage!".

Let's not forget the ever-present "Add more struts!" either.

If anything is needed, it is the fact that it needs to be upploaded somewhere so we all can enjoy your creation.

[ank]

It's an abandoned design, since all the interest I'll tinker some more with it... needs more engines!
but if anybody is interested in getting the damn thing to work i can just upload that version

[miauw62]

More boosters and more engines for more fun.