Gulfstream IV (GLF4)

The Gulfstream IV — ICAO type designator GLF4 — is a twin-engined jet aircraft. It seats about 14 passengers, flies up to 7,820 km and spans 23.7 m. Its first flight was in 1985. Its card in the Skydex collection is rare. In Skydex one pilot logged a single airframe of the Gulfstream IV.

Heard by the network

8 Skydex receivers (Georgia, Florida) have heard the Gulfstream IV — 622 different airframes, 8,052 sightings since 31 Aug 2026; last on 11 Nov 2026.

Operators

Distinct airframes per operator, from the callsigns our receivers hear (recorded since 7 Oct 2026) and from caught aircraft. The operator is the latest one heard, not an ownership history. Also heard: 23 military (not named), 458 private (not named), 52 without an operator callsign yet.

ICAO type code
GLF4
Manufacturer
Gulfstream Aerospace
Engines
2 × jet
Typical seats
14
Range
7,820 km
Wingspan
23.7 m
Length
26.9 m
First flight
1985
Card rarity
rare

Spotted airframes

In the directory

Questions

What is the ICAO designator for the Gulfstream IV?

GLF4. It is the ICAO aircraft type designator used in flight plans and in ADS-B aircraft databases.

Who builds the Gulfstream IV?

Gulfstream Aerospace. The type first flew in 1985.

Which airlines fly the Gulfstream IV?

In the Skydex network it has been heard or caught flying for ValuJet Airlines (9 airframes), Air Coral Coast (2 airframes) and Westcoast Energy (2 airframes).

How often does the Skydex network hear the Gulfstream IV?

622 different airframes since 2026-08-31, on 8,052 airframe-days, at 8 receivers. The last one was heard on 2026-11-11.

How rare is the Gulfstream IV in Skydex?

Rare tier. Players have caught 1 airframe of the type.