N151SD 1994 Gulfstream IV-SP
- 1994Built
- 19Seats
- 4,220 nmRange
- 459 ktCruise
- 45,000 ftCeiling
INSIDE
The Gulfstream IV-SP cabin.
Illustrations of a typical Gulfstream IV-SP cabin, not N151SD’s. Every aircraft’s completion differs.
RADAR ESTIMATE
What N151SD is worth, and where it’s heading.
Radar's value model doesn't cover the Gulfstream IV-SP on its own yet, so this borrows the Gulfstream G450 curve, scales it to N151SD's listing-based estimate and widens the range to match. An estimate, not an appraisal.
N151SD · On program · wider range
$2M
- In 2031
- $1.4M
- Value kept
- 68%
- Per year
- −7.3%
- Program effect
- $132.7K
- Confidence
- Low
5-year projection
The Gulfstream G450 curve, scaled to this Gulfstream IV-SP
SPECIFICATIONS
Gulfstream IV-SP specs
Published figures for the type, from public sources. A given aircraft varies with its completion, weight and mods.
- Model
- Gulfstream IV-SP
- Year
- 1994
- Serial number
- 1249
- Engines
- 2 × Rolls-Royce Tay 611-8
- Thrust
- 13,850 lbf each
- Seats
- Up to 19
- Range
- 4,220 nm
- Cruise
- 459 ktas
- Published Mach
- 0.8
- Ceiling
- 45,000 ft
- Fuel capacity
- 4,403 US gal
- ICAO type
- GLF4
- Exterior
- White with black/red accent stripes and large 'MAYWEATHER' titles
THE AIRCRAFT’S LIFE
N151SD, from delivery to today.
Registration events from FAA records, compiled November 2025. Maintenance, damage and component history live in the logbooks, not the registry.
-
CIT Leasing Corporation
Registered to CIT Leasing Corporation at delivery (2001-03-06).
FAA registry -
AVN Air LLC
Registered under N634S / AVN Air (2003-07-31).
FAA registry -
AVN Air LLC
Re-registered to AVN Air (registration change 2004-06-08).
FAA registry -
Aviation Company Inc
Registered to Aviation Company Inc (Cheyenne, WY) per FAA registry (certificate issued 2025-06-02).
FAA registry
FAA REGISTRATION
Registration details
- Registration
- N151SD
- Status
- Current as of November 2025
- Certificate issued
- Jun 2, 2025
- Airworthiness date
- Sep 28, 1994
- Last FAA action
- Jun 2, 2025
- Registration expires
- Jun 30, 2032
- Mode S code (hex)
- A0CF7A
- Aircraft category
- Fixed-wing multi-engine
- Weight class
- Over 20,000lbs
From FAA registry data as of November 2025. Check the FAA registry for the current record.
OWNERSHIP
Registered owner
Aviation Company Inc
EQUIPMENT AND HISTORY
As reported in public sources
- Avionics
- Honeywell SPZ-8000 / Collins ProLine variants (common GIV/GIV-SP installations)
- Cabin
- Typical 3-zone executive layout (13-19 pax layouts common)
- Interior
- Executive interior (multi-zone). Exterior shows custom 'MAYWEATHER' titles and branding in photos.
Listings and registries are not the logbooks. A pre-buy confirms equipment, program status and damage history from the records themselves.
RESEARCH NOTES
About N151SD
Compiled with AI assistance from the public sources listed below, November 2025. Not checked against the aircraft's logbooks.
Overview
This airframe, registered as N151SD, is a 1994-built Gulfstream Gulfstream G-IV SP (G-IV-SP), constructor serial 1249. The aircraft is owned by Aviation Company Inc, a corporation based in Cheyenne, WY, US, and operates on the United States registry. Operator home-base activity and line operations reflect the corporate ownership; no notable registry actions published.
Operations & Cabin
The cabin on this specific airframe follows a typical three-zone executive layout, with configurations for 13-19 passenger arrangements common to the model; the installed fit indicates a corporate transport role focused on executive missions. Avionics for this airframe align with common GIV/GIV-SP installations, including Honeywell SPZ-8000 and Collins ProLine variants, supporting long-range, high-altitude operations and advanced navigation/communication capability. Typical mission profiles for N151SD would include transcontinental and transoceanic executive flights enabled by its 4,220 nm range and cruise at 459 kts, operating from its corporate base in Cheyenne and similar continental hubs. Maintenance considerations reflect Rolls-Royce Tay engine support and airframe-age systems updates typical for a 1994 Gulfstream SP variant.
Model & Market Context
The Gulfstream G-IV SP (G-IV-SP) occupies the long-range, large-cabin executive transport niche, offering higher cruise speed and altitude capability relative to many midsize business jets, exemplified by its 45,000 ft service ceiling. Competing models occupy overlapping mission envelopes but may differ in cabin volume or operating cost; buyer and charter demand for late-model G-IV/SP airframes is influenced by avionics modernization, engine shop visit cycles for Rolls-Royce Tay units, and overall asset condition.
MOVEMENTS
Last reported flights
| Date | From | To |
|---|---|---|
| Not reported | KTEB Teterboro Airport | |
| Not reported | KVNY Van Nuys Airport | |
| KOPF Opa-locka Executive Airport | TNCM Princess Juliana International Airport | |
| Not reported | KSDL Scottsdale Municipal Airport |
Public ADS-B and spotter reports up to November 2025. Not a live track.
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.
BUYING, SELLING OR FINANCING
What to check before a deal
- Pre-buy records reviewWhat to read in the logbooks before you sign
- Aircraft title searchLiens, registrations and the chain of title
- Aircraft valuationHow records, time and programs move the price
- Aircraft maintenance recordsWhat a complete records package holds
Own or manage N151SD? Put its logbooks in Radar.
Radar reads every logbook page, typed or handwritten, and builds one searchable record for the aircraft: times, inspections, ADs and components, each tied to the page it came from.
N151SD is not a Radar customer record. This page is built from public sources as of November 2025. Owners and operators can ask for a correction or removal.