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Illustration of a Gulfstream IV. Not a photo of N188SA.
Illustration of the Gulfstream IV, not a photo of N188SA.

N188SA 1990 Gulfstream IV

Serial number 1150. Registered to Alliance Aviation Group LLC, Wilmington, DE, US.

  • 1990Built
  • 22Seats
  • 4,220 nmRange
  • 459 ktCruise
  • 45,000 ftCeiling

INSIDE

The Gulfstream IV cabin.

Illustrations of a typical Gulfstream IV cabin, not N188SA’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 N188SA 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 N188SA's listing-based estimate and widens the range to match. An estimate, not an appraisal.

N188SA · On program · wider range

$3M

$2.3M$3.6M
In 2031
$2M
Value kept
68%
Per year
−7.3%
Program effect
$196.2K
Confidence
Low

5-year projection

The Gulfstream G450 curve, scaled to this Gulfstream IV

$1.5M$2.1M$2.7M$3.3MNow20272028202920302031On program $2MOff program $1.8M
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
1990
Serial number
1150
Engines
2 × Rolls-Royce Tay 611-8
Thrust
13,850 lbf each
Seats
Up to 22
Range
4,220 nm
Cruise
459 ktas
Published Mach
0.8
Ceiling
45,000 ft
Fuel capacity
4,370 US gal
ICAO type
GLF4
Exterior
Matterhorn White with Blue & Grey accents

THE AIRCRAFT’S LIFE

N188SA, 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. Private owner

    FAA registry

  2. Arya Aviation LLC

    Previously registered to ARYA AVIATION LLC (FAA/flight-record snapshots).

    FAA registry

  3. Alliance Aviation Group LLC

    Registration assignment/certificate issued to ALLIANCE AVIATION GROUP LLC (FAA record).

    FAA registry

FAA REGISTRATION

Registration details

Registration
N188SA
Status
Current as of November 2025
Certificate issued
Aug 27, 2025
Airworthiness date
Oct 18, 1990
Last FAA action
Aug 27, 2025
Registration expires
Aug 31, 2032
Mode S code (hex)
A15FF5
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

Alliance Aviation Group LLC

LLC · Wilmington, DE, US

EQUIPMENT AND HISTORY

As reported in public sources

Avionics
Honeywell SPZ 8000 suite with HUD/EVS, TCAS 7.1, TAWS, dual FMS UNS-1LW
Cabin
Refurbished 2003 executive layout for up to 13 passengers: forward 4-place club, mid 3-place divan opposite 2-place club, aft 4-place conference group; forward crew lav and aft lav, full aft galley.
Interior
Refurbished 2003 by Gulfstream Savannah; dual cabin monitors, Airshow, ATG-4000 connectivity, satcom (MCS-7000), Iridium phone, USB charging, full galley and large baggage compartment.
Maintenance program
Engines reported on JSSI (per broker listings)

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

RESEARCH NOTES

About N188SA

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

Overview

The airframe bearing tail number N188SA is a Gulfstream IV (G-IV) built in 1990 with manufacturer serial 1150. It is recorded as owned by Alliance Aviation Group LLC, a limited liability company based in Wilmington, DE, US, and is registered in the US.

Operations & Cabin

This specific Gulfstream IV (G-IV) is configured in a refurbished 2003 executive layout accommodating up to 13 passengers: a forward four-place club, a mid three-place divan opposite a two-place club, and an aft four-place conference group; the interior also includes a forward crew lavatory, an aft lavatory, and a full aft galley. The airframe carries a Honeywell SPZ 8000 avionics suite equipped with HUD/EVS, TCAS 7.1, TAWS, and dual UNS-1LW FMS, enabling precision long-range operations and enhanced situational awareness for crew. Typical mission profiles for this configuration would include transcontinental and transoceanic executive transport within the type’s long-range capability, operated from the owner’s Wilmington, Delaware base for corporate or charter duties. Maintenance considerations for this airframe center on older-generation Rolls-Royce Tay engines and systems lifecycle items tied to its 1990 manufacture date, though avionics and cabin updates mitigate operational obsolescence.

Model & Market Context

The Gulfstream IV (G-IV) occupies a long-range, large-cabin business jet niche with a cruise speed around 459 kts and intercontinental range near 4,220 nm, competing with late-generation Bombardier Challengers and early Global Express variants for mission flexibility. Prospective operators weigh maintenance timelines for the Rolls-Royce Tay engines and component life-limits against the platform’s proven operating economics and cabin capacity.

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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