terahurts

Don't take it to heart sarbian, there's plenty of us that understand the amount of work that's been put into MJ and appreciate it immensely along with all the effort you're putting it to get things fixed.

I totally agree with you. Might be better to have a short sentence mentioning that the accent AP may require some manual tweaking as it's not a 'one size fits all' solution due to 1.x introducing changes to the aero model along with a paragraph about current known bugs and issues along with a request to try the dev build before posting a bug report that bug reports are provided with .craft/rar'd saves etc. That might remove some of the noise in the thread and allow Sarbian to focus on the fixes rather than having to repeat himself here ever other day.

Use the latest dev build. Landing AP is a bit wonky and you might have to fiddle with the ascent AP settings a bit but it's mostly working OK.

Sarbian, Thank for the updates and all the hard work, It's most appreciated! I performed a few landing AP tests this morning: Version 445 Test one - using save from my prev post (75km orbit). Land at Target (KSC Pad) Much better decent profile with no tumbling or random burns. Distance to target rises to ~15km as craft undergoes heat effects (expected from your previous comments) but AP seems to be holding craft at -15.5 degree pitch during decent, this continues until craft hits ground ~15km west of KSC and Status field in AP is blank. There doesn't seem to be any attempt to brake for landing both with and without deploy chutes enabled. Chutes still deploy if option checked though. Test Two - As above but abort landing and use land somewhere when heat effects start. Aborting and selecting Land Somewhere pitches craft up to retrograde through heating and mach effects although there is some rocking (this could the AP fighting aero forces). Normal AP powered decent to ~7km west of KSC. Test Three - Same craft, Duna, Land at Target. Random point on equator. Attempt 1 failed due to lack of Dv Attempt 2 enabled infinite fuel, successful landing 700m from target point. Test Four - Same craft, back to Kerbin, Use MJ to raise orbit from 75km (hypereditted) to 100km and Land at KSC Same results as Test One, AP seems to lock on whatever pitch craft is at at end of mach effects and status field is blank, unpowered decent until chute opens ~5km from KSC.

Sarbian, if I'm understanding correctly the landing AP should now be working for airless bodies but still has issues with ones with an atmosphere. Is that correct?

That's pretty much what I did. Stock ship, and HE'd to a 75km orbit (My previous post & save). It's almost as if MJ is getting wildly different results each time it runs the landing calculations, especially when using 'Land at Target' and also that it's trying to perform a non-aerobraked landing as even a 'Land Somewhere' landing will cause a throttle up.

https://drive.google.com/file/d/0B4NGIpQIUGFhTTk5SnJVMlZNMU0/view?usp=sharing Save Name: MJ-Test Vessel Name: MJ-Landing Test - 75km orbit MJ build version: #442 dev. Mods installed: KER HyperEdit MechJeb Tweakable Everything Test: 'Land Somewhere' Retrograde burn till Pe= -60km Ballistic descent with small amounts of throttle up until Dv=0 and chute opens. Test: 'Land at KSP Pad' Ksp Pad - Set - Land at Target Warp until ~153 degree west Retrograde burn until Pe= -60km. Target difference is ~500km 'Performing course correction of 40m/s' Immediate turn prograde with 10 degree nose up. Burn until Pe has raised to +73Km. Craft continues in orbit with no landing. After clicking on abort and and then Land at Target again: Burn retrograde until Target Difference is ~300m Constant ~10% throttle burn until fuel is exhausted followed by ballistic re-entry and landing ~80km from KSC Pad. It's almost as if MJ is freezing for several seconds at a time then overcompensating. Constantly clicking abort-LaT seems to get a closer landing.