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Seriously skilled heli pilot

Postby someguy » Wed Dec 11, 2013 7:40 pm

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Re: Seriously skilled heli pilot

Postby Johan G » Wed Dec 11, 2013 8:37 pm

You beat me to it. I had the intention to post it here, so I settle for the YouTube version.




And yes, I am duly impressed. :shock: 8)

I have never seen that impressive helicopter flying since I saw that video of a clown and a helicopter in a in a stock car arena. To bad I can not seem to find that video again. :(
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Re: Seriously skilled heli pilot

Postby Buckaroo » Wed Dec 11, 2013 8:49 pm

I watched this again and again and again. It's almost unbelievable.

Here's a different view of the operation from the helicopter perspective:

http://www.youtube.com/watch?feature=player_embedded&v=FF9ntiP9g7g

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Re: Seriously skilled heli pilot

Postby Johan G » Wed Dec 11, 2013 10:44 pm

If anything, that for sure did not make it less impressive. Wow! 8)

Thanks Buck for that view!
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Re: Seriously skilled heli pilot

Postby someguy » Thu Dec 12, 2013 1:29 am

Thanks for that one, Buck.
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Re: Seriously skilled heli pilot

Postby Groucho » Thu Dec 12, 2013 8:47 am

Johan G wrote in Wed Dec 11, 2013 8:37 pm:And yes, I am duly impressed. :shock: 8)


Not to mention the stress he puts on air frame, mechanics and engines. That stresses the MTBF a lot.
BTW on the second view from the cockpit one can see that there are at least 2 helicopters operating.
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Re: Seriously skilled heli pilot

Postby Hooray » Thu Dec 12, 2013 9:23 am

That looks like a lot of fun, I think if we could replicate this in FlightGear, it would be an awesome addon to FlightGear, sort of a challenging gaming element based on real life :D
I think we should have most ingredients for this ready in FlightGear, i.e. the bo105, support for external loads and -of course- Nasal scripting.

I am volunteering to help with the scripting side of things, now we only need guys familiar with FDMs, helicopters and 3D modeling/animations.
Any takers ? :lol:

I think JSBSim has better support than YASim for modeling external loads and external forces, right ?
And this could help convince some of us that flight simulators (and especially helicopters) should not be flown with just a keyboard :P
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Re: Seriously skilled heli pilot

Postby StuartC » Thu Dec 12, 2013 9:59 am

Yasim has the better payload support + Yasim Choppers are also better as the fuselage is taken into account. I believe JSB chopper FDM's dont do that.
Not sure how you would go about including a payload thats basically flexing and changing position with the relevant forces in ether FDM though.
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Re: Seriously skilled heli pilot

Postby Thorsten » Thu Dec 12, 2013 12:14 pm

Not sure how you would go about including a payload thats basically flexing and changing position with the relevant forces in ether FDM though.


The payload gets its position updated by an equation of motion computed in Nasal.

It feels its intertia and the gravitational pull, based on last and present position we have a velocity vector on which to operate drag, and the distance between load and helicopter is pushed into a rope force equation - when the rope is tight, it exerts a lot of force propertional to the tension, when it's not then there's no rope force. Oh, and we need to check if it touches the ground of course...

Assuming the payload is approximately symmetric that should do the trick - we have frame spacing, so we have a Delta t, we have present and last position, i.e. a Delta x, which combine into a Delta v - that's all we need to solve a discretized equation of motion.

It's not actually that complicated :-)
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Re: Seriously skilled heli pilot

Postby Johan G » Thu Dec 12, 2013 12:18 pm

StuartC wrote in Thu Dec 12, 2013 9:59 am:I believe JSB chopper FDM's dont do that.

It's all up to the numbers one uses for the tables. ;)
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Re: Seriously skilled heli pilot

Postby Hooray » Thu Dec 12, 2013 12:20 pm

we should add a new branch for this and see what we can come up with :lol:

please keep it coming folks!
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Re: Seriously skilled heli pilot

Postby Johan G » Sat Oct 14, 2017 12:35 pm

Finally possible in FlightGear thanks to wlbragg. :D 8)
wlbragg wrote in Wed Oct 11, 2017 11:57 pm:[...] here is video demonstrating the main concept that inspired the creation of cargo hauling capability.

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Re: Seriously skilled heli pilot

Postby Hooray » Sat Oct 14, 2017 2:03 pm

Just in time for christmas ;-)
That's one of those things that could be integrated with Marius_A's missions system, so that people get a score for their flying performance
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Re: Seriously skilled heli pilot

Postby www2 » Sat Oct 14, 2017 3:22 pm

@Hooray you can better say: Just in time for FSweekend ;)
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Re: Seriously skilled heli pilot

Postby Hooray » Sat Oct 14, 2017 3:35 pm

not sure how well it is currently suited to be really used as a "game" (or even just a challenge) - some kind of evaluation may make sense, and maybe some Flite TTS integration live commenting on your performance ;-)

Also some kind of GUI dialog to start/reset the whole thing and change a few parameters.
I guess wlbragg would be in a better position to judge if this is even suitable to be shown at FSWeekend ?
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