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Naval Warfare

HMS Antelope (F170)

Frigate Warship / Patrol Frigate [ 1975 ]

The fighting frigate HMS Antelope F170 of the British Royal Navy fell victim to Argentine bombs during the Falklands War of 1982.

Authored By: Staff Writer | Last Edited: 04/25/2018 | Content ©www.MilitaryFactory.com | The following text is exclusive to this site.

The Falklands War between Argentina and Britain began on April 2nd, 1982 when elements of the former invaded British-protected territories in the South Pacific. Days later, the Royal Navy was sent into action to intervene and the conflict would span over a period of two-plus months resulting in a resounding defeat of the Argentina military. Beyond the British victory, fallout of the war included a democratic government installed to succeed military-rule in Argentina in 1983 as well as a complete severing of political ties between the two powers that lasted into 1989 - not to mention the loss of life experienced on both sides.

Type 21 Frigates of the Royal Navy
HMS Antelope (F170) was a surface fighting frigate of the British Royal Navy (RN) during this period as part of the latter Cold War years. The vessel belonged to the eight-strong "Type 21" group - the "A Frigates" - made up of HMS Amazon, HMS Antelope, HMS Ambuscade, HMS Arrow, HMS Active, HMS Alacrity, HMS Ardent, and HMS Avenger. The group was ordered from 1969 into 1971 and constructed from 1969 until 1974. Commissioning took place from 1974 into 1978.

HMS Antelope Origins
Antelope herself was ordered on May 11th, 1970 and saw her keel laid down on March 23rd, 1971 by Vosper Thornycroft. She was launched to sea on March 16th, 1972, accepted into the ranks of the RN on June 30th, 1975, and formally commissioned on July 16th, 1975. By definition she was a "patrol frigate", capable of close-to-shore operation as well as "blue water" service.

In service, she fought under the motto of "Audax et Vigilans" ("Daring and Watchful").

Her lines included a raised bow section with a sole turreted deck gun present. The bridge section was set atop the forward portion of the hull superstructure which also held the main mast. A secondary mast was positioned just aft near the smoke funnel at midships. The profile gradually stepped down towards a leveled flight deck set over the stern. Dimensions included a running length of 384 feet with a beam reaching 41.8 feet and a draught down to 19.5 feet. Displacement was 3,250 tons under full loads.

Air Wing
The stern-based flight deck was home to a single medium-lift navy helicopter - this originally being a Westland Wasp but later upgraded to the Westland Lynx.©MilitaryFactory.com
Installed Power and Performance
Internally, power was from a COmbined Gas Or Gas (COGOG) arrangement seeing 2 x Rolls-Royce Olympus and 2 x Rolls-Royce Tyne RM1A gas turbines. The latter pair was used for cruising actions while the former was reserved for high-speed dashing. Top speed in ideal conditions reached 32 knots and range was out to a healthy 4,000 nautical miles. Aboard was a crew of about 177 personnel.

Armament Suite
Installed armament was led by 1 x 4.5" (114mm) Mark 8 series turreted deck gun over the forecastle. 2 x 20mm Oerlikon autocannons were used for Anti-Aircraft (AA) defense as was a single "Sea Cat" quadruple Surface-to-Air Missile (SAM) launcher. The vessel also carried 2 x Triple torpedo tubes to engage enemy submarines at range. Unlike her sisters, Antelope was never fitted with the all-important "Exocet" anti-ship missile system. All told, the warship could be called upon to undertake a variety of ocean-going roles: denying airspace, securing strategic points, tracking enemy surface ships or submarines, or protecting the main fleet.

Falklands War Commitment
With the war having begun in early April of 1982, HMS Antelope did not make it to the theater until May 21st of that year. Her career in the war came to a rather abrupt end when, on May 23rd, she was targeted by Argentine Air Force Douglas A-4 Skyhawk fighter-bombers (detailed elsewhere on this site) numbering four (in two flights). The first wave of Skyhawks largely avoided the AA defense network and managed to score a single hit from a 1,000lb bomb along Antelope's starboard side - however this munition did not detonate. The second flight saw one Skyhawk clipping the secondary mastworks, causing damage, while the other attacker was downed by British fire. A second bomb pierced Antelope's deck but, again, did not detonate.

HMS Antelope Meets Her End
Despite multiple attempts by Royal Engineers to disarm at least one of the bombs, the vessel was lost when the final (fourth) attempt involved use of a small controlled explosive. This detonated the munition which created a ripple effect of issues for the doomed ship. One engineer was killed outright while another suffered injuries including the loss of an arm. With electrical power gone and fires spreading, the order was given to abandon the vessel.

Antelope detonated throughout the night time hours to present rather dramatic pictures for the time. The explosions were such that her hull was completely fractured by morning - though she remained afloat. In time, she broke in two and sunk to the bottom of the sea ending her service career in the RN. Today her remains are protected.©MilitaryFactory.com
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Service Year

United Kingdom national flag graphic
United Kingdom

No Longer in Service.

Type 21-class

HMS Amazon (F169); HMS Antelope (F170); HMS Ambuscade (F172); HMS Arrow (F173); HMS Active (F171); HMS Alacrity (F174); HMS Ardent (F184); HMS Avenger (F185)

National flag of the United Kingdom United Kingdom (sunk)
(OPERATORS list includes past, present, and future operators when applicable)
Offshore Bombardment
Offshore bombardment / attack of surface targets / areas primarily through onboard ballistic weaponry.
Offshore strike of surface targets primarily through onboard missile / rocket weaponry.
Maritime Patrol
Active patroling of vital waterways and maritime areas; can also serve as local deterrence against airborne and seaborne threats.
Airspace Denial / Deterrence
Neutralization or deterrence of airborne elements through onboard ballistic of missile weaponry.
Fleet Support
Serving in support (either firepower or material) of the main surface fleet in Blue Water environments.

384.0 ft
117.04 m
41.8 ft
12.74 m
19.5 ft
5.94 m

Installed Power: 2 x Rolls-Royce Olympus gas turbines with 2 x Rolls-Royce Tyne RM1A gas cruising turbines in COGOG (COmbined Gas Or Gas) arrangement.
Surface Speed
32.0 kts
(36.8 mph)
3,997 nm
(4,600 mi | 7,403 km)

kts = knots | mph = miles-per-hour | nm = nautical miles | mi = miles | km = kilometers

1 kts = 1.15 mph | 1 nm = 1.15 mi | 1 nm = 1.85 km
1 x 4.5" (114mm) Mark 8 turreted deck gun.
2 x 20mm Oerliokn Anti-Aircraft (AA) guns.
1 x "Sea Cat" Surface-to-Air Missile (SAM) quadruple launcher.
2 x 21" triple torpedo tubes (six total tubes).

Supported Types

Graphical image of a modern warship turreted deck gun armament
Graphical image of an aircraft automatic cannon
Graphical image of an air-to-air missile weapon
Graphical image of an aircraft aerial torpedo

(Not all weapon types may be represented in the showcase above)
1 x Westland Wasp / Westland Lynx or similar navalized medium-lift helicopter on the stern flight deck.

Military lapel ribbon for the Cold War period
Military lapel ribbon for early warship designs
Military lapel ribbon for the Falklands War
Military lapel ribbon for the 1991 Gulf War
Military lapel ribbon for the Korean War
Military lapel ribbon representing modern aircraft
Military lapel ribbon for the Attack on Pearl Harbor
Military lapel ribbon for the Russian Invasion of Ukraine
Military lapel ribbon for the Vietnam War
Military lapel ribbon for the World War 1
Military lapel ribbon for the World War 2

Ribbon graphics not necessarily indicative of actual historical campaign ribbons. Ribbons are clickable to their respective naval campaigns / operations / periods.

Images Gallery

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Image of the HMS Antelope (F170)
Image from the Public Domain.

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