N129NS
Gulfstream G-IV (G-IV SP) (SP)
Gulfstream Aerospace Corporation
8 Hours
Duration of Flight
3880 NM
Range
505 MPH
Max Speed
Gallery



Basic Information
Airframe
Data valid as of 2024-01-23| Date | From | To | Flight Time | Status |
|---|---|---|---|---|
| 2025-11-09 | N/A | N/A | N/A | ✓ Landed |
| 2025-11-09 | N/A | N/A | N/A | ✓ Landed |
| 2025-11-07 | N/A | N/A | N/A | ✓ Landed |
| 2025-11-06 | N/A | N/A | N/A | ✓ Landed |
AI Summary
Gulfstream G-IV (G-IV SP) (SP)
Overview
1995 Gulfstream G‑IV (MSN 1281). Registered: HARVEY HORSES LLC (Wilmington, DE). Airworthiness: 1995-12-28. FAA certificate action recorded 2024-01-23; registration expiration 2031-01-31.
Specifications
- Engines: 2× Rolls‑Royce TAY 611SER (12450 lbf each)
- Range: 3880 nm
- Cruise: 459 kts
- Seats: 22
- Ceiling: 45000 ft
Operations & Cabin
Certified 22 seats (registry); typical executive fitouts 12–14 forward‑facing passenger seats in three cabin zones with forward galley and aft lavatory(s). Large stand‑up cabin, forward and aft service galleys, enclosed lavatory(s); bespoke interior layouts vary by owner. Avionics: Honeywell SPZ‑series (typical fit on G‑IV SP) / Collins Pro Line 4 (common retrofit options)
Model & Market Context
This airframe, N129NS, is a 1995-build Gulfstream G‑IV (G‑IV SP) with serial number 1281. The aircraft is recorded as owned by HARVEY HORSES LLC, a corporation located in Wilmington, DE, US, and carries United States registration. The airframe configuration and registry list a certified seating capacity of 22 and a contemporary market valuation of $5,800,000. No other ownership transfers or notable registry actions are published in the supplied data.
The registry shows this G‑IV SP certified with 22 seats while typical executive fitouts for the model place 12–14 forward‑facing passenger seats arranged in three cabin zones, commonly with a forward galley and aft lavatory(s). Avionics fit for this airframe is noted as Honeywell SPZ‑series, which is a typical factory or OEM fit, while Collins Pro Line 4 is referenced as a common retrofit option for the type. With a long range of 3,880 nm and high cruise speed of 459 kts, the aircraft is suited to transcontinental and some transoceanic executive missions; maintenance and cabin reconfiguration choices will influence its role as corporate transport or charter asset. The twin Rolls‑Royce TAY turbofans rated at 12,450 lbf each underpin the type’s performance envelope and contribute to maintenance and overhaul cost considerations specific to this engine family.
The Gulfstream G‑IV (G‑IV SP) family occupies a long‑range business jet niche that balances transcontinental range with high cruise speed and substantial cabin volume for its era. Competing models in the same performance bracket typically include other large-cabin jets introduced in the 1990s and early 2000s; retrofit avionics such as Collins Pro Line 4 are commonly pursued to maintain operational capability and regulatory compliance. Given the 1995 build year and the listed valuation of $5,800,000, resale and acquisition considerations for this airframe will center on engine cycles, avionics modernization, cabin refurbishment to the noted 12–14 executive seat layouts, and remaining calendar life relative to the type’s support network.
Aircraft Comparison
| Parameter | N129NS | 445QS | N100A |
|---|---|---|---|
| Serial Number (MSN) | 1281 | 4037 | 6550 |
| Year Manufactured | 1995 | 2006 | 2023 |
| Duration of Flight | 8 Hours | 9 Hours | 15 Hours |
| Range | 3880 NM | 4350 NM | 7500 NM |
| Max Speed | 505 MPH | 505 MPH | 516 MPH |
| Aircraft Class | Over 20,000lbs | Over 20,000lbs | Over 20,000lbs |
| Service Ceiling | 45000 ft | 45000 ft | 51000 ft |
| Max Passengers | 22 | 22 | 22 |
| Cabin Comfort | No items found. | No items found. | No items found. |