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Hotaru    1635

One option to avoid cluttering up the UI would be to have an "airplane mode" (like we have "docking mode" now) where all the usual SAS options are replaced with horizon-relative ones like you'd have in a plane. I forget if it's been mentioned already, but a "hold vertical" mode (or better yet, a "kill horizontal velocity" mode) would be useful as well, especially for landers and VTOLs.

And just in case it isn't already obvious, I support this.

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DrLicor    393

You can install the mod persistent rotation
Also, for having a certain degree, you can install Mechjeb and use Smart A.S.S. for the exact number 

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Deddly    2250

@DrLicor Thanks for the mod tips! This is a suggestion for stock, though

 

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jofwu    62

I would take it even further, as others are suggesting... Have both hold pitch and hold heading options.

You can toggle both separately. Whatever your current pitch/heading is gets locked. If you want to "hold horizon" then point at the horizon and lock it. Same thing for heading. If you want to adjust: unlock, adjust, re-lock.

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Red Iron Crown    12089

I support this.

Doesn't even require a UI change, just have it behave so when in "Surface" mode.

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swjr-swis    1454
Posted (edited)
42 minutes ago, jofwu said:

Have both hold pitch and hold heading options.

The hold heading is a tricky one though: unless one's heading at time of lock is exactly 90 degrees or exactly 270 degrees at zero inclination from the equatorial plane, a meaningful course will need the heading to gradually change to actually 'hold course', the extreme case being an exactly polar orbit which would stay due north or south for half the orbit then require a full and instantaneous 180 degree swing when passing over the poles  and head exactly the opposite heading the other half of the orbit (great circle navigation, it's a doozy).

 

Edited by swjr-swis

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jofwu    62
4 minutes ago, swjr-swis said:

The hold heading is a tricky one though: unless one's heading at time of lock is exactly 90 degrees or exactly 270 degrees at zero inclination from the equatorial plane, a meaningful course will actually need the heading to gradually change to actually 'hold course', the extreme case being an exactly polar orbit which would stay due north or south for half the orbit then require a full and instantaneous 180 degree swing when passing over the poles  and head exactly the opposite heading the other half of the orbit (great circle navigation, it's a doozy).

Yeah, I thought about that as I was typing it, but was too lazy to think of a better term. "Hold Course" is a good way to put it. :)

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2 hours ago, swjr-swis said:

The hold heading is a tricky one though: unless one's heading at time of lock is exactly 90 degrees or exactly 270 degrees at zero inclination from the equatorial plane, a meaningful course will need the heading to gradually change to actually 'hold course', the extreme case being an exactly polar orbit which would stay due north or south for half the orbit then require a full and instantaneous 180 degree swing when passing over the poles  and head exactly the opposite heading the other half of the orbit (great circle navigation, it's a doozy).

 

If I may.

Heading hold is a feature on aircrafts. I agree that it might not be a good one in orbit.

Even on aircrafts there are limits. For instance nobody "Normally" fly over the pole.

Commercial airliners don't do it. Their instruments are not certified for such operation.

So impose limits as they have. Normal operation between say the equator and say 80°N or S.

Heading hold might revert to Attitude hold.

 

ME

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linuxgurugamer    5597

There are several autopilot mods, any one of them can do this already

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Deddly    2250

@linuxgurugamer there are mods for most things, but this is a suggestion for stock KSP :P

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This sort of feature can actually grow into contract system. For instance, perform one mission and the pilot who did it will be awarded with Hold Horizon SAS option.

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TheEpicSquared    1887

I support this.

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NotAgain    316

This is a wonderful idea, which I entirely support.

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Numerlor    261
Posted (edited)

This will make plane circumnavigation possible without being mad and without mods, so I pretty much like this

Edited by Numerlor

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