N78ET
Gulfstream G-IV
Gulfstream Aerospace
9 Hours
Duration of Flight
4220 NM
Range
476 MPH
Max Speed

Gallery




Basic Information
Airframe
Data valid as of 2025-08-19| Date | From | To | Flight Time | Status |
|---|---|---|---|---|
| 2025-10-21 | N/A | N/A | N/A | ✓ Landed |
AI Summary
Gulfstream G-IV
Overview
1993 Gulfstream G-IV (MSN 1217), registered to STEVEN BROTHERS AVIATION LLC; registration active until 2028-09-30.
Specifications
- Engines: 2× Rolls‑Royce TAY 611‑8 (12450 lbf each)
- Range: 4220 nm
- Cruise: 459 kts
- Seats: 22
- Ceiling: 45000 ft
Operations & Cabin
Executive layout (typical 14 pax configuration; certificated up to 22 seats). Cabin length ≈45.1 ft, cabin volume ≈1,658 cu ft. Large executive cabin, substantial baggage (≈169 cu ft); common executive fit includes conference/divan seating and full service galley (specific fit for N78ET not publicly listed).
Model & Market Context
This airframe, registered as N78ET, is a Gulfstream G-IV built by Gulfstream Aerospace in 1993 with manufacturer serial number 1217. The jet is owned by STEVEN BROTHERS AVIATION LLC, an LLC based in Wichita, KS, US, which appears in current registry records as the operator/home base. There are no publicly listed incidents or alternate owners in the provided data; its U.S. registration and single-entity ownership suggest steady corporate operation and retention. Condition or valuation specifics are not published in the supplied dataset.
The cabin on this specific G-IV is described as an executive layout with a typical 14-passenger interior but is certificated for up to 22 seats; reported cabin length is approximately 45.1 ft with a cabin volume of about 1,658 cu ft, supporting mixed VIP and higher-density configurations. Typical mission profiles for this airframe—given its 4,220 nm range and high cruise speed of 459 kts—would include transcontinental U.S. and North American charters, executive repositioning flights from its Wichita base, and long-range business missions. Avionics fit is not published in the supplied data, but maintenance considerations for this airframe center on its twin Rolls‑Royce TAY 611‑8 turbofans, which require type-specific support and scheduled overhauls. The executive layout and certification flexibility make it suitable for both private corporate use and higher-capacity charter operations.
The Gulfstream G-IV family occupies the large-cabin, long-range business jet niche, offering a balance of transcontinental range and high cruise speed, exemplified by this airframe’s 4,220 nm range and 459 kts cruise. Competitors in the era and market segment include large-cabin types from Bombardier and Dassault; buyers and charter operators typically prize the G-IV for cabin volume and proven platform support. Resale and maintenance considerations for a 1993 airframe like serial 1217 emphasize engine program status and structural/avionics updates when compared to newer models.
Aircraft Comparison
| Parameter | N78ET | N100EW | N100HB |
|---|---|---|---|
| Serial Number (MSN) | 1217 | 4070 | 5137 |
| Year Manufactured | 1993 | 2007 | 2006 |
| Duration of Flight | 9 Hours | 9 Hours | 14 Hours |
| Range | 4220 NM | 4350 NM | 6750 NM |
| Max Speed | 476 MPH | 500 MPH | 508 MPH |
| Aircraft Class | Over 20,000lbs | Over 20,000lbs | Over 20,000lbs |
| Service Ceiling | 45000 ft | 45000 ft | 51000 ft |
| Max Passengers | 22 | 22 | 20 |
| Cabin Comfort | No items found. | No items found. | No items found. |