Re: [Flightgear-devel] ANN: Turbulence
On Wed, 12 Feb 2003 01:07:46 +, Major A <[EMAIL PROTECTED]> wrote in message <[EMAIL PROTECTED]>: > > Great work, Jon and David! > > > Here's a command-line for a fun approach (it would be more fun if I > > added a strong crosswind and low visibility, but you'll get the > > point): > > > > fgfs --offset-distance=2 --altitude=1000 --vc=80 > > --prop:/environment/turbulence-norm=1.0 > > > > (Keep your airspeed up right to the flare.) > > What flare? :-( > > Can you seriously land a plane like this? Also, doesn't turbulence get > less when you get closer to the ground? ..heh, ever flown in a Widerøe Twin Otter up north (in Norway) outside the tourist season? ;-) ..some of the more spectacular places can be found reading statistics, look for less than 98% outgoing pax. ;-) -- ..med vennlig hilsen = with Kind Regards from Arnt... ;-) ...with a number of polar bear hunters in his ancestry... Scenarios always come in sets of three: best case, worst case, and just in case. ___ Flightgear-devel mailing list [EMAIL PROTECTED] http://mail.flightgear.org/mailman/listinfo/flightgear-devel
Re: [Flightgear-devel] ANN: Turbulence
Major A writes: > Can you seriously land a plane like this? I think the idea would be to try to let the passengers walk away, whatever condition the plane ended up in (that's assuming that you had no choice but to land). > Also, doesn't turbulence get less when you get closer to the > ground? I think so -- I'm wondering if we should fade it out within a couple of wingspans of the ground. All the best, David -- David Megginson, [EMAIL PROTECTED], http://www.megginson.com/ ___ Flightgear-devel mailing list [EMAIL PROTECTED] http://mail.flightgear.org/mailman/listinfo/flightgear-devel
RE: [Flightgear-devel] ANN: Turbulence
> Can you seriously land a plane like this? Also, doesn't turbulence get > less when you get closer to the ground? It can get less near the ground -- particularly in the Z direction (up/down) -- when you get close to the ground it has nowhere to go but out. smime.p7s Description: application/pkcs7-signature
Re: [Flightgear-devel] ANN: Turbulence
Great work, Jon and David! > Here's a command-line for a fun approach (it would be more fun if I > added a strong crosswind and low visibility, but you'll get the > point): > > fgfs --offset-distance=2 --altitude=1000 --vc=80 >--prop:/environment/turbulence-norm=1.0 > > (Keep your airspeed up right to the flare.) What flare? :-( Can you seriously land a plane like this? Also, doesn't turbulence get less when you get closer to the ground? Andras === Major Andras e-mail: [EMAIL PROTECTED] www:http://andras.webhop.org/ === ___ Flightgear-devel mailing list [EMAIL PROTECTED] http://mail.flightgear.org/mailman/listinfo/flightgear-devel
[Flightgear-devel] ANN: Turbulence
I dug up Jon's old, disabled turbulence support in JSBSim, added a tiny bit of damping, and hooked it up to FlightGear. All JSBSim aircraft now include preliminary, use-at-your-own-risk turbulence support. To set turbulence, use the /environment/turbulence-norm property in FlightGear: a value of 0.0 means perfectly smooth air, and a value of 1.0 means severe turbulence. The property is also linked up to a slider in winds dialog box under the Weather/Winds menu entry. Jon gets all the credit for writing this code in the first place, but I'll accept any blame for rolling it out before it was ready for prime time. I'll need to damp the ASI needle a bit, since turbulence is making it jump around too much right now. Here's a command-line for a fun approach (it would be more fun if I added a strong crosswind and low visibility, but you'll get the point): fgfs --offset-distance=2 --altitude=1000 --vc=80 --prop:/environment/turbulence-norm=1.0 (Keep your airspeed up right to the flare.) All the best, David -- David Megginson, [EMAIL PROTECTED], http://www.megginson.com/ ___ Flightgear-devel mailing list [EMAIL PROTECTED] http://mail.flightgear.org/mailman/listinfo/flightgear-devel
