_fuel_l = fgGetNode( "/consumables/fuel/tank[0]/level-gal_us", true );
_fuel_r = fgGetNode( "/consumables/fuel/tank[1]/level-gal_us", true );
_oil_px = fgGetNode( "/engines/engine[0]/oil-pressure-psi", true );
_fuel_l = fgGetNode( "/consumables/fuel/tank[0]/level-gal_us", true );
_fuel_r = fgGetNode( "/consumables/fuel/tank[1]/level-gal_us", true );
_oil_px = fgGetNode( "/engines/engine[0]/oil-pressure-psi", true );