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Illustration of a Gulfstream III. Not a photo of N388MM.
Illustration of the Gulfstream III, not a photo of N388MM.

N388MM 1986 Gulfstream III

Serial number 490. Registered to Ac Travel LLC, Palm Beach, FL, US.

  • 1986Built
  • 45,000 ftCeiling
Gulfstream III: specs, US fleet and every tail number

INSIDE

The Gulfstream III thirteen-seat main-cabin example cabin.

Illustrations of a representative Gulfstream III thirteen-seat main-cabin example cabin, not N388MM’s. Every aircraft’s completion differs. Explore the Gulfstream III interior and layout. Gulfstream III interior: cabin size and seat map.

Gulfstream III thirteen-seat main-cabin example illustration. Actual layout and equipment vary; not a photograph of this aircraft.
A representative Gulfstream III thirteen-seat main-cabin example cabin.
Top-down view of a Gulfstream III thirteen-seat main-cabin example cabin. Illustrated Gulfstream III 13-place main cabin: three-place divan and two-chair forward lounge, four-place middle club and four-place aft dining group. Crew, aft galley and lavatory are outside this schematic. Actual layout and equipment vary.
Illustrated Gulfstream III 13-place main cabin: three-place divan and two-chair forward lounge, four-place middle club and four-place aft dining group. Crew, aft galley and lavatory are outside this schematic. Actual layout and equipment vary.

ROUGH RANGE

What N388MM might be worth, and where it’s heading.

A rough range: Radar's value model doesn't cover the Gulfstream III on its own yet. From Radar's listing-based estimates for business jets of similar engine thrust and age. The Gulfstream G450 curve gives the shape of the forecast, and the range is widened to match. Not an appraisal.

N388MM · On program · rough range

$3.3M

$2.2M$5M
In 2031
$2.3M
Value kept
68%
Per year
−7.3%
Program effect
$219.4K
Confidence
Low

5-year projection

The Gulfstream G450 curve, scaled to a rough range for this Gulfstream III

$1.6M$2.6M$3.6M$4.6MNow20272028202920302031On program $2.3MOff program $2M
Engine program
Horizon
Open the aircraft value tool

Gulfstream III price by build year, and the for-sale market

SPECIFICATIONS

Gulfstream III specs

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

Full Gulfstream III specs, range and cabin

Model
Gulfstream III
Year
1986
Serial number
490
Engines
2 × Rolls-Royce Spey RB(163-25)511-8 (SPEY MK 511SR)
Thrust
11,400 lbf each
Published Mach
0.85
Ceiling
45,000 ft

THE AIRCRAFT’S LIFE

N388MM on the registry.

Registration events from FAA records, compiled October 2026. Maintenance, damage and component history live in the logbooks, not the registry.

  1. Registry record

    Airworthiness date on the current FAA record (standard category).

    FAA registry

  2. Ac Travel LLC

    Certificate of registration issued as N388MM.

    FAA registry

FAA REGISTRATION

Registration details

Registration
N388MM
Status
Current as of October 2026
Certificate issued
Mar 24, 2005
Airworthiness date
Oct 16, 1986
Last FAA action
Sep 9, 2023
Registration expires
Oct 31, 2029
Mode S code (hex)
A47A21
Aircraft category
Large-cabin jet
Weight class
Over 20,000lbs

From FAA registry data as of October 2026. Check the FAA registry for the current record.

OWNERSHIP

Registered owner

Ac Travel LLC

LLC · Palm Beach, FL, US

SOURCES

Where this page comes from

Built from FAA registry records, manufacturer specifications, and public flight-tracking and market data, compiled October 2026. 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