The Hurricane Supersonic Research Site (HSRS) was formerly on Hurricane Mesa in Washington County, Utah . It was a United States Air Force (USAF) launch complex with a rocket research track that launched a rocket ejection seat from a supersonic sled.
8-690: The track's 12,000 ft (3,700 m) "of continuously welded, heavy-duty crane-rails aligned to within plus or minus one-tenth inch tolerance [was] the longest" in the US ( cf. the shorter 1954 Holloman Rocket Sled). Coleman Engineering Company was contracted for $ 2 million in June 1954 and constructed the Supersonic Military Air Research Track (SMART), mechanical arresting gear (water brakes with 34 tons of force), retro rockets, and photographic/telemetering facilities. Coleman
16-407: A possible identity, or at least a significant resemblance, such as between a newly observed specimen and a known species or taxon . Such a usage might suggest a specimen's membership of the same genus or possibly of a shared higher taxon. For example, in the note " Diptera: Tabanidae , cf. Tabanus ", the author is confident of the order and family ( Diptera : Tabanidae ) but can only suggest
24-421: Is commonly placed between the genus name and the species name to describe a specimen that is hard to identify because of practical difficulties, such as poor preservation. For example, " Barbus cf. holotaenia " indicates that the specimen is in the genus Barbus and believed to be Barbus holotaenia , but the actual species-level identification cannot be certain. Cf. can also be used to express
32-405: Is used in writing to refer the reader to other material to make a comparison with the topic being discussed. Style guides recommend that "cf." be used only to suggest a comparison, and the words "see" or " vide " be used generally to point to a source of information. In Italian , the abbreviation "cfr." ( confronta , 'confront') is more common than "cf." is. In biological naming conventions, cf.
40-698: The Hurricane Mesa Test Facility it is owned and managed by the Collins Aerospace division of the Raytheon Technologies Corporation. Currently the facility is still used to test military ejection seats for the U.S. and foreign governments. [REDACTED] Media related to Hurricane Supersonic Research Site at Wikimedia Commons Cf. The abbreviation cf. (short for either Latin confer or conferatur , both meaning 'compare')
48-413: The genus ( Tabanus ) and has no information favouring a particular species. Among numismatists (coin collector-research specialists), cf. may be used in references on the paper and/or online coin identification information meaning "compare to". It is common for abbreviations of listings in trusted coin catalogues or sales from certain online auctions to be cited when identifying a particular coin. If
56-492: Was also contracted for operations on November 30, 1955, and achieved a "world land speed record [using] a 9,400-pound sled rocketing down the track at 1,800 miles per hour." The numerous test facilities included a powered comparator for high-speed motion pictures, a 1956 IBM 706 computer, and 1960 Bendix G-15 computer. Control of the site transferred from Indian Springs Air Force Base on November 6, 1957, and from Wright-Patterson AFB to Edwards AFB on March 9, 1962—the base
64-622: Was placed on standby in December 1961, and was closed on June 20, 1963. The 3,500.78-acre (1,416.72 ha) Formerly Used Defense Site (J08UT0026) initially transferred to Stanley Aviation and was leased to Sacol, Inc. on May 21, 1965. Adjacent to the test track, in an abandoned, out-of-service airstrip, which was called the Hurricane Mesa Airport.( 37°14′59″N 113°12′31″W / 37.24972°N 113.20861°W / 37.24972; -113.20861 ) Now called
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