All corrections
Wikipedia October 8, 2026 at 11:34 AM

en.wikipedia.org/wiki/Project_HARP

2 corrections found

1
Claim
the Barbados Prime Minister Errol Barrow
Correction

Errol Barrow was not Prime Minister at that time. In 1962 he was Premier of Barbados; the office was redesignated Prime Minister only in November 1966.

Full reasoning

The timeline in official Barbadian parliamentary history does not support calling Errol Barrow "Prime Minister" in 1962. Barbados Parliament's history page says Barbados attained full internal self-government in 1961 and "Errol W. Barrow ... became Premier." The same page says that "On November 18, 1966, the designation Premier was changed to Prime Minister." Barbados Parliament's list of prime ministers then starts Barrow's prime-ministerial term on 30 Nov 1966.

Because this passage is describing events in 1962, Barrow's correct title then was Premier of Barbados, not Prime Minister.

2 sources
2
Claim
On November 18, 1966, the HARP gun operated by BRL at Yuma Proving Ground launched an 84-kg Martlet 2 missile at 2,100 m/s, sending it briefly into space and setting a world altitude record of 179 km.
Correction

The record shot is documented as occurring on 19 November 1966, not 18 November, and reaching 180 km rather than 179 km.

Full reasoning

Multiple sources documenting the HARP altitude record give a different date and altitude from this sentence. Guinness World Records says the record was set at Yuma on 19 November 1966, when an 84 kg projectile reached 180 km (112 miles). The Federation of American Scientists gives the same date and altitude: "On 19 November 1966 the gun fired a 185-lb Martlet to an altitude of 180 km."

So the article's record statement is off on both key specifics: the best-documented record shot was 19 Nov 1966 and 180 km, not 18 Nov 1966 and 179 km.

2 sources
Model: OPENAI_GPT_5 Prompt: v1.16.0