diff --git a/src/FDM/ExternalPipe/ExternalPipe.cxx b/src/FDM/ExternalPipe/ExternalPipe.cxx
new file mode 100644
index 000000000..4ff764e05
--- /dev/null
+++ b/src/FDM/ExternalPipe/ExternalPipe.cxx
@@ -0,0 +1,224 @@
+// ExternalPipe.hxx -- a "pipe" interface to an external flight dynamics model
+//
+// Written by Curtis Olson, started March 2003.
+//
+// Copyright (C) 2003  Curtis L. Olson  - curt@flightgear.org
+//
+// This program is free software; you can redistribute it and/or
+// modify it under the terms of the GNU General Public License as
+// published by the Free Software Foundation; either version 2 of the
+// License, or (at your option) any later version.
+//
+// This program is distributed in the hope that it will be useful, but
+// WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+// General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program; if not, write to the Free Software
+// Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+//
+// $Id$
+
+#ifdef HAVE_CONFIG_H
+#  include <config.h>
+#endif
+
+#if defined( HAVE_SYS_TYPES_H ) && defined( HAVE_SYS_STAT_H )
+#  include <sys/types.h>        // mkfifo() open() umask()
+#  include <sys/stat.h>         // mkfifo() open() umask()
+#  include <fcntl.h>            // open()
+#  include <unistd.h>           // unlink()
+#endif
+
+#include <simgear/debug/logstream.hxx>
+#include <simgear/io/lowlevel.hxx> // endian tests
+
+#include <Main/fg_props.hxx>
+#include <Network/native_ctrls.hxx>
+#include <Network/native_fdm.hxx>
+
+#include "ExternalPipe.hxx"
+
+
+FGExternalPipe::FGExternalPipe( double dt, string name ) {
+    valid = true;
+
+    buf = new char[sizeof(ctrls) + 1];
+
+#if defined( HAVE_SYS_TYPES_H ) && defined( HAVE_SYS_STAT_H )
+    fifo_name_1 = name + "1";
+    fifo_name_2 = name + "2";
+
+    SG_LOG( SG_IO, SG_ALERT, "ExternalPipe Inited with " << name );
+
+    // Make the named pipe
+    umask(0);
+    int result;
+    result = mkfifo( fifo_name_1.c_str(), 0644 );
+    if ( result == -1 ) {
+        SG_LOG( SG_IO, SG_ALERT, "Unable to create named pipe: "
+                << fifo_name_1 );
+        valid = false;
+    }
+    result = mkfifo( fifo_name_2.c_str(), 0644 );
+    if ( result == -1 ) {
+        SG_LOG( SG_IO, SG_ALERT, "Unable to create named pipe: "
+                << fifo_name_2 );
+        valid = false;
+    }
+
+    pd1 = open( fifo_name_1.c_str(), O_RDWR );
+    cout << "pd1 = " << pd1 << endl;
+    if ( pd1 == -1 ) {
+        SG_LOG( SG_IO, SG_ALERT, "Unable to open named pipe: " << fifo_name_1 );
+        valid = false;
+    }
+    pd2 = open( fifo_name_2.c_str(), O_RDWR );
+    cout << "pd2 = " << pd2 << endl;
+    if ( pd2 == -1 ) {
+        SG_LOG( SG_IO, SG_ALERT, "Unable to open named pipe: " << fifo_name_2 );
+        valid = false;
+    }
+#endif
+}
+
+
+FGExternalPipe::~FGExternalPipe() {
+    delete [] buf;
+
+#if defined( HAVE_SYS_TYPES_H ) && defined( HAVE_SYS_STAT_H )
+    // close
+    int result;
+    result = close( pd1 );
+    if ( result == -1 ) {
+        SG_LOG( SG_IO, SG_ALERT, "Unable to close named pipe: "
+                << fifo_name_1 );
+    }
+    result = close( pd2 );
+    if ( result == -1 ) {
+        SG_LOG( SG_IO, SG_ALERT, "Unable to close named pipe: "
+                << fifo_name_2 );
+    }
+
+    // remove the file system entry
+    result = unlink( fifo_name_1.c_str() );
+    if ( result == -1 ) {
+        SG_LOG( SG_IO, SG_ALERT, "Unable to remove named pipe: "
+                << fifo_name_1 );
+    }
+    result = unlink( fifo_name_2.c_str() );
+    if ( result == -1 ) {
+        SG_LOG( SG_IO, SG_ALERT, "Unable to remove named pipe: "
+                << fifo_name_2 );
+    }
+#endif
+}
+
+
+// Initialize the ExternalPipe flight model, dt is the time increment
+// for each subsequent iteration through the EOM
+void FGExternalPipe::init() {
+    // Explicitly call the superclass's
+    // init method first.
+    common_init();
+
+    double lon = fgGetDouble( "/sim/presets/longitude-deg" );
+    double lat = fgGetDouble( "/sim/presets/latitude-deg" );
+    double alt = fgGetDouble( "/sim/presets/altitude-ft" );
+    double ground = fgGetDouble( "/environment/ground-elevation-m" );
+    double heading = fgGetDouble("/sim/presets/heading-deg");
+    double speed = fgGetDouble( "/sim/presets/airspeed-kt" );
+
+#if defined( HAVE_SYS_TYPES_H ) && defined( HAVE_SYS_STAT_H )
+
+    char cmd[256];
+    int result;
+
+    sprintf( cmd, "1longitude-deg=%.8f", lon );
+    result = std::write( pd1, cmd, strlen(cmd) );
+    if ( result == -1 ) {
+        SG_LOG( SG_IO, SG_ALERT, "Write error to named pipe: " << fifo_name_1 );
+    }
+
+    sprintf( cmd, "1latitude-deg=%.8f", lat );
+    result = ::write( pd1, cmd, strlen(cmd) );
+    if ( result == -1 ) {
+        SG_LOG( SG_IO, SG_ALERT, "Write error to named pipe: " << fifo_name_1 );
+    }
+
+    sprintf( cmd, "1altitude-ft=%.8f", alt );
+    result = std::write( pd1, cmd, strlen(cmd) );
+    if ( result == -1 ) {
+        SG_LOG( SG_IO, SG_ALERT, "Write error to named pipe: " << fifo_name_1 );
+    }
+
+    sprintf( cmd, "1ground-m=%.8f", ground );
+    result = std::write( pd1, cmd, strlen(cmd) );
+    if ( result == -1 ) {
+        SG_LOG( SG_IO, SG_ALERT, "Write error to named pipe: " << fifo_name_1 );
+    }
+
+    sprintf( cmd, "1speed-kts=%.8f", speed );
+    result = std::write( pd1, cmd, strlen(cmd) );
+    if ( result == -1 ) {
+        SG_LOG( SG_IO, SG_ALERT, "Write error to named pipe: " << fifo_name_1 );
+    }
+
+    sprintf( cmd, "1heading-deg=%.8f", heading );
+    result = std::write( pd1, cmd, strlen(cmd) );
+    if ( result == -1 ) {
+        SG_LOG( SG_IO, SG_ALERT, "Write error to named pipe: " << fifo_name_1 );
+    }
+
+    SG_LOG( SG_IO, SG_INFO, "before sending reset command." );
+
+    if( fgGetBool("/sim/presets/onground") ) {
+      sprintf( cmd, "1reset=ground" );
+    } else {
+      sprintf( cmd, "1reset=air" );
+    }
+    result = std::write( pd1, cmd, strlen(cmd) );
+    if ( result == -1 ) {
+        SG_LOG( SG_IO, SG_ALERT, "Write error to named pipe: " << fifo_name_1 );
+    }
+
+    SG_LOG( SG_IO, SG_INFO, "Remote FDM init() finished." );
+#endif
+}
+
+
+// Run an iteration of the EOM.
+void FGExternalPipe::update( double dt ) {
+#if defined( HAVE_SYS_TYPES_H ) && defined( HAVE_SYS_STAT_H )
+    int length;
+    int result;
+
+    if ( is_suspended() ) {
+        return;
+    }
+
+    // Send control positions to remote fdm
+    length = sizeof(ctrls);
+    FGProps2NetCtrls( &ctrls, false );
+    buf[0] = '2';
+    char *ptr = buf;
+    ptr++;
+    memcpy( ptr, (char *)(&ctrls), length );
+    result = std::write( pd1, buf, length + 1 );
+    if ( result == -1 ) {
+        SG_LOG( SG_IO, SG_ALERT, "Write error to named pipe: " << fifo_name_1 );
+    }
+    // cout << "wrote to pipe" << endl;
+
+    // Read next set of FDM data (blocking enabled to maintain 'sync')
+    length = sizeof(fdm);
+    result = std::read( pd2, (char *)(& fdm), length );
+    if ( result == -1 ) {
+        SG_LOG( SG_IO, SG_ALERT, "Read error from named pipe: "
+                << fifo_name_2 );
+    }
+    FGNetFDM2Props( &fdm, false );
+    // cout << "read from pipe" << endl;
+#endif
+}
diff --git a/src/FDM/ExternalPipe/ExternalPipe.hxx b/src/FDM/ExternalPipe/ExternalPipe.hxx
new file mode 100644
index 000000000..7043e53a5
--- /dev/null
+++ b/src/FDM/ExternalPipe/ExternalPipe.hxx
@@ -0,0 +1,64 @@
+// ExternalPipe.hxx -- a "pipe" interface to an external flight dynamics model
+//
+// Written by Curtis Olson, started March 2003.
+//
+// Copyright (C) 2003  Curtis L. Olson  - curt@flightgear.org
+//
+// This program is free software; you can redistribute it and/or
+// modify it under the terms of the GNU General Public License as
+// published by the Free Software Foundation; either version 2 of the
+// License, or (at your option) any later version.
+//
+// This program is distributed in the hope that it will be useful, but
+// WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+// General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program; if not, write to the Free Software
+// Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+//
+// $Id$
+
+#ifndef _EXTERNAL_PIPE_HXX
+#define _EXTERNAL_PIPE_HXX
+
+#include <simgear/timing/timestamp.hxx> // fine grained timing measurements
+
+#include <Network/net_ctrls.hxx>
+#include <Network/net_fdm.hxx>
+
+
+class FGExternalPipe: public FGInterface {
+
+private:
+
+    bool valid;
+
+    string fifo_name_1;
+    string fifo_name_2;
+    int pd1; 
+    int pd2; 
+
+    FGNetCtrls ctrls;
+    FGNetFDM fdm;
+    char *buf;
+
+public:
+
+    // Constructor
+    FGExternalPipe( double dt, string fifo_name );
+
+    // Destructor
+    ~FGExternalPipe();
+
+    // Reset flight params to a specific position
+    void init();
+
+    // update the fdm
+    void update( double dt );
+
+};
+
+
+#endif // _EXTERNAL_PIPE_HXX
diff --git a/src/FDM/ExternalPipe/Makefile.am b/src/FDM/ExternalPipe/Makefile.am
new file mode 100644
index 000000000..3009308ea
--- /dev/null
+++ b/src/FDM/ExternalPipe/Makefile.am
@@ -0,0 +1,11 @@
+noinst_LIBRARIES = libExternalPipe.a
+
+# noinst_PROGRAMS = demo_fdm
+
+libExternalPipe_a_SOURCES = \
+	ExternalPipe.cxx ExternalPipe.hxx
+
+# demo_fdm_SOURCES = demo_fdm.cxx demo_httpd.cxx demo_httpd.hxx
+# demo_LDADD = 
+
+INCLUDES = -I$(top_srcdir) -I$(top_srcdir)/src