Gulfstream IV / G350 / G450
Flight Crew Multiengine; Flight Crew Instrument; Flight Crew Air Transport Pilot (ATP)
Flight Crew Last 90 Days 140; Flight Crew Total 19500; Flight Crew Type 4000
Human-Machine Interface
Deviation - Altitude Overshoot; Deviation / Discrepancy - Procedural Clearance; Deviation / Discrepancy - Procedural Published Material / Policy
Flight Crew Returned To Clearance
Aircraft; Human Factors
Departing TEB Runway 24 on the RUUDY4 departure; WENTZ intersection has a mandatory crossing restriction of 1;500 FT. After liftoff and gear retraction; I asked for the autopilot to be engaged at approximately 900 FT to insure that the aircraft leveled at 1;500 FT at WENTZ. As the aircraft approached 1;500 FT; the climb rate was such that the autopilot overshot the altitude by 100 FT. I disconnected the autopilot and manually flew the aircraft back to 1;500 FT. The Departure Controller then cleared us to 10;000 FT with no further comment. I relied on the autopilot to level the aircraft at 1;500 FT assuming that would be the case. In the future; I will be more vigilant that the autopilot will comply with the performance that I expect.
G450 First Officer reports overshooting the 1;500 FT initial level off altitude on the RUUDY4 departure from TEB. The autopilot was engaged at 900 FT and was unable to make to make the level off precisely.