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Illustration of a Gulfstream IV. Not a photo of N129NS.
Illustration of the Gulfstream IV, not a photo of N129NS.

N129NS 1995 Gulfstream IV

Serial number 1281. Registered to Harvey Horses LLC, Wilmington, DE, US.

  • 1995Built
  • 22Seats
  • 3,880 nmRange
  • 459 ktCruise
  • 45,000 ftCeiling

INSIDE

The Gulfstream IV cabin.

Illustrations of a typical Gulfstream IV cabin, not N129NS’s. Every aircraft’s completion differs.

An eye-level view looking aft through a Gulfstream IV stand-up cabin with cream leather club seats, a three-place divan, an aft conference area, wood veneer cabinetry and six large oval windows on each side in warm natural light.
A typical Gulfstream IV cabin.
Top-down view of a Gulfstream IV cabin. Typical 13-passenger layout: a club of four, two club seats opposite a three-place divan, four conference seats, aft galley and lavatory.
Typical 13-passenger layout: a club of four, two club seats opposite a three-place divan, four conference seats, aft galley and lavatory.

RADAR ESTIMATE

What N129NS is worth, and where it’s heading.

Radar's value model doesn't cover the Gulfstream IV on its own yet, so this borrows the Gulfstream G450 curve, scales it to N129NS's listing-based estimate and widens the range to match. An estimate, not an appraisal.

N129NS · On program · wider range

$5.8M

$4.5M$7.1M
In 2031
$4M
Value kept
68%
Per year
−7.3%
Program effect
$385.7K
Confidence
Low

5-year projection

The Gulfstream G450 curve, scaled to this Gulfstream IV

$2.9M$4.1M$5.4M$6.6MNow20272028202920302031On program $4MOff program $3.5M
Engine program
Horizon
Open the aircraft value tool

SPECIFICATIONS

Gulfstream IV specs

Published figures for the type, from public sources. A given aircraft varies with its completion, weight and mods.

Model
Gulfstream IV
Year
1995
Serial number
1281
Engines
2 × Rolls-Royce TAY 611SER
Thrust
12,450 lbf each
Seats
Up to 22
Range
3,880 nm
Cruise
459 ktas
Published Mach
0.8
Ceiling
45,000 ft
ICAO type
GLF4
Exterior
White

THE AIRCRAFT’S LIFE

N129NS, from delivery to today.

Registration events from FAA records, compiled November 2025. Maintenance, damage and component history live in the logbooks, not the registry.

  1. Venti Capital LLC

    Previous FAA registry import lists VENTI CAPITAL LLC as registrant (registry snapshot 2018).

    FAA registry
  2. Harvey Horses LLC

    FAA registration action recorded; current registrant listed as HARVEY HORSES LLC (Wilmington, DE).

    FAA registry
  3. Cit Leasing Corp

    Earlier corporate registrant listed in historical registry mirrors.

    FAA registry
  4. Hanover-Hawker Aviation LLC

    Named as a co-owner/partner on registry mirrors and public ownership summaries.

    FAA registry

FAA REGISTRATION

Registration details

Registration
N129NS
Status
Current as of November 2025
Certificate issued
Jan 23, 2024
Airworthiness date
Dec 28, 1995
Last FAA action
Jan 23, 2024
Registration expires
Jan 31, 2031
Mode S code (hex)
A0765E
Weight class
Over 20,000lbs

From FAA registry data as of November 2025. Check the FAA registry for the current record.

OWNERSHIP

Registered owner

Harvey Horses LLC

Corporation · Wilmington, DE, US

EQUIPMENT AND HISTORY

As reported in public sources

Avionics
Honeywell SPZ-series (typical fit on G-IV SP) / Collins Pro Line 4 (common retrofit options)
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).
Interior
Large stand-up cabin, forward and aft service galleys, enclosed lavatory(s); bespoke interior layouts vary by owner.

Listings and registries are not the logbooks. A pre-buy confirms equipment, program status and damage history from the records themselves.

RESEARCH NOTES

About N129NS

Compiled with AI assistance from the public sources listed below, November 2025. Not checked against the aircraft's logbooks.

Overview

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. No other ownership transfers or notable registry actions are published in the supplied data.

Operations & Cabin

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.

Model & Market Context

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.

SOURCES

Where this page comes from

Built from FAA registry records, manufacturer specifications, and public flight-tracking and market data, compiled November 2025. Values come from Radar’s aircraft value model. Owners and operators can ask for a correction or removal.

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