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Re: Avatar Scorpion
Posted: Thu May 28, 2020 2:41 am
by IAHM-COL
I'll test tomorrow. Thanks bomber
Re: Avatar Scorpion
Posted: Fri May 29, 2020 3:55 pm
by IAHM-COL
bomber wrote:update 3...
I think we're getting there now
Some very subtle changes... increased stability in normal flight at higher alts and speed through use of variable rotor rmp p damping.. no change for hover flight, so watch it.
A WEP of 120% increase in rotor rpm's...(e key toggle) I've not tested it and I think it needs some indication in the HUD doing.
You should now have a ceiling of +10kft at 100%, but you will need to manage your Capacitor levels through judicious step climbing...
Acceleration is starting to feel like the beast it should be.
https://drive.google.com/open?id=1bYy6s ... wfZCaV8xDPSimon
wow.
This is a serious update. Kinda version bump?
I'll fly it out later [today] and report, for now:
https://github.com/FGMEMBERS-NONGPL/AH- ... 4b06505132
Re: Avatar Scorpion
Posted: Fri May 29, 2020 7:47 pm
by IAHM-COL
IAHM-COL wrote:I'll fly it out later [today] and report
Oh No!
I am back to this
Code: Select all
Error: caught signal 11:
/lib64/libc.so.6 : ()+0x395a0
fgfs : JSBSim::FGTrim::trimOnGround()+0x973
fgfs : JSBSim::FGTrim::DoTrim()+0x17ac
fgfs : FGJSBsim::do_trim()+0x4b
fgfs : FGJSBsim::init()+0x4b4
fgfs : FDMShell::update(double)+0x3e8
fgfs : SGSubsystemGroup::Member::update(double)+0x7a
fgfs : SGSubsystemGroup::update(double)+0x391
fgfs : SGSubsystemMgr::update(double)+0x33
fgfs() [0x10d2a0b]
fgfs : fgOSMainLoop()+0x79
fgfs : fgMainInit(int, char**)+0x1c57
fgfs : main()+0x11b
/lib64/libc.so.6 : __libc_start_main()+0xea
fgfs : _start()+0x2a
Re: Avatar Scorpion
Posted: Fri May 29, 2020 7:57 pm
by bomber
Will give it some thought
Re: Avatar Scorpion
Posted: Fri May 29, 2020 10:28 pm
by IAHM-COL
bomber wrote:Will give it some thought
Cool
If this can guide your thinking (cause it certainly makes no sense to me)
https://github.com/FGMEMBERS-NONGPL/AH- ... 8f6d0899ecThat single change of -1.28 to 1.28 (no sign) on line 144 of Engines/rotor_fan.xml is all I needed to go from Segfault everytime to No Segfault everytime.
While you figure out
1. If it matters
2. Why
I fly this beast a bit more
Re: Avatar Scorpion
Posted: Fri May 29, 2020 11:17 pm
by IAHM-COL
@Bomber
With the new changes it totally made a ceiling of 10Kft.
Great job.
I can pass to hover mode before landing, and taxi it by hovering to a parking. Using <i> and <o> to make the hover taxiing very possible.
Its actually a lot of fun to fly this.
(and I am a really bad helicopter pilot, to be kind with me)
And to be a pain the anatomy: With the new settings the problem is to bring her down. I kind of struggled a bit on San Sebastian to make her descend to the airport. But as you see, totally doable. Maybe just bad pilot?!
Best,
IH
http://www.jafva.com/flight/1222/
Re: Avatar Scorpion
Posted: Sat May 30, 2020 12:13 am
by IAHM-COL
With the new config mountain hoping is TOTALLY possible
See this example
http://www.jafva.com/flight/1223/Check on my elevation profile in contrast with the terrain.
I think you've made a very capable helicopter for FG.
JSBsim FTW
Re: Avatar Scorpion
Posted: Sat May 30, 2020 7:32 am
by bomber
Thanks for saying so....
I watched a film that had a blackhawk in it last evening and as always seeing it, it got me thinking so I did some reading late on.
I'd installed a 'stabilator' on this Scorpion without knowing they actually existed but thinking that it'd be a good idea for longtitudinal control at high speeds. What I didn't appreciate and now do after reading about why the blackhawk has one that it's primary function is in the hover, which I don't think I've taken into account. To do this it must be using the ground effect, as in a hover there should be little to no dynamic pressure for the stabilator to use without using the ground effect. I need therefor to read up on the air direction and speed during ground effect and implement this into the stabilators dynamic pressure and AoA calcs...
I thought I'd finished but the pursuit of accuracy is never ending.
regards
Simon
Re: Avatar Scorpion
Posted: Sat May 30, 2020 7:44 am
by bomber
IAHM-COL wrote:
That single change of -1.28 to 1.28 (no sign) on line 144 of Engines/rotor_fan.xml is all I needed to go from Segfault everytime to No Segfault everytime.
I fly this beast a bit more
Oh WTG you've solved the problem !
I've duplicated your change here and it does the same thing... this means you're running the same rotor file that allows for autorotation...
Re: Avatar Scorpion
Posted: Sat May 30, 2020 12:55 pm
by IAHM-COL
bomber wrote:I've duplicated your change here and it does the same thing... this means you're running the same rotor file that allows for autorotation...
That real neat.
Confession: I have no clue why that negative sign is calling a total segfault on JSbim.
But if it works, I leave it explaining to you.
Best,
IH