jsbsim-devel

[Jsbsim-devel] Scaled Composites' GlobalFlyer Readied for Record Flight

[Jon B. <js...@ha...>]

Bill G.:

Think DATCOM+ could predict this one?

www.aviationnow.com/avnow/news/channel_awst_story.jsp?id=news/01035top.xml

:-)

Jon

RE: [Jsbsim-devel] Scaled Composites' GlobalFlyer Readied for Record Flight

[Bill G. <bi...@ao...>]

Predict the flutter?  Nope. Flutter is a structures problem. We don't =
know
nothing about sturcture problems. ;-}
=20
Did you get my New Year's email?  In short, yes, I'll fix DATCOM+ for =
the
new format. Is it stable enough yet for me to start working on that? Can =
you
send me the specification or examples?  Also, is the old JSBSim config
format going to be compatible with the new XML parser, or does =
everything
have to be changed over?
=20
Thanks,
Bill

-----Original Message-----
From: jsb...@li...
[mailto:jsb...@li...] On Behalf Of Jon =
Berndt
Sent: Tuesday, January 04, 2005 12:09 AM
To: JSBSim Developer List
Subject: [Jsbsim-devel] Scaled Composites' GlobalFlyer Readied for =
Record
Flight


Bill G.:
=20
Think DATCOM+ could predict this one?
=20
www.aviationnow.com/avnow/news/channel_awst_story.jsp?id=3Dnews/01035top.=
xml

:-)
=20
Jon
=20

RE: [Jsbsim-devel] Scaled Composites' GlobalFlyer Readied for Record Flight

[Jon B. <js...@ha...>]

Message
  Predict the flutter?  Nope. Flutter is a structures problem. We don't know
nothing about sturcture problems. ;-}

  Did you get my New Year's email?
Yes
  In short, yes, I'll fix DATCOM+ for the new format. Is it stable enough
yet for me to start working on that?
Yes
  Can you send me the specification or examples?
Yes
  Also, is the old JSBSim config format going to be compatible with the new
XML parser, or does everything have to be changed over?
No. All new.

Jon

Re: [Jsbsim-devel] Scaled Composites' GlobalFlyer Readied for Record Flight

[Ron F. <ron...@at...>]

Message----- Original Message -----=20
  From: Bill Galbraith=20
  To: jsb...@li...=20
  Sent: Tuesday, January 04, 2005 7:19 AM
  Subject: RE: [Jsbsim-devel] Scaled Composites' GlobalFlyer Readied for =
Record Flight


  Predict the flutter?  Nope. Flutter is a structures problem. We don't =
know nothing about sturcture problems. ;-}
  .......
  Bill

      I checked the GlobalFlyer URL.  Looks like it could be dangerous =
to fly.

      That NASA RamJet failed an early test because of structural =
failure.  They decided they hadn't modeled/analyzed supersonic forces on =
a control surface well enough.  =20
    =20
      I see the GlobalFlyer is not a Canard.

      I guess they used the Williams turbofan to save weight.  The =
relatively low speed of the GlobalFlyer puts 'jet' powerplants at a =
disadvantage.    I see they want to limit altitude to FL 450, and IAS to =
150 kts.  That comes to  Mach 0.48, 275 TAS.

      If they average a 100 kt tailwind it would fly 375 kt * 48 hr =3D =
18,500 nm in 2 days. =20

      RAF