Skycycle X-2 | |
---|---|
General information | |
Type | Stunt aircraft |
Manufacturer | Robert Truax |
Designer | |
Primary user | Evel Knievel |
Number built | 3 |
History | |
Manufactured | 1974 |
First flight | August 25, 1974 |
Retired | September 8, 1974 |
The Skycycle X-2 was a steam-powered rocket owned by Evel Knievel and flown during his Snake River Canyon jump in Idaho in 1974.
An earlier prototype was designed, named the Skycycle X-1, by Doug Malewicki and retired U.S. Navy engineer Robert Truax. It was tested in November 1973 and dove in the Snake River. [1]
The Skycycle X-2 was designed by Truax, [2] and ridden by Knievel in his attempt to jump the Snake River approximately 1 mile (1.6 km) west of Shoshone Falls near the city of Twin Falls, Idaho, on September 8, 1974. [3] [4] [5] [6] [7] [8] The parachute deployed during the launch, causing the stunt to fail. [9]
A later analysis showed that a design flaw in a mechanical parachute retention cover that did not properly take base drag into account caused the premature parachute deployment. Following the failed jump, Truax and Knievel blamed each other for the failure. Later, Truax accepted full responsibility for the failure. [10] [11]
Although the parachute deployed early, the aerial photographs show the X-2 cleared the canyon. However, the winds blew the rocket back to the launch side, crashing at the bottom of the canyon, barely missing the river. Knievel stated that if the X-2 had landed in the water, he would have drowned, as he did not have the ability to release himself from the harness. [12]
In order to obtain permission from the State of Idaho to perform the canyon jump, the X-2 was registered as an airplane rather than a motorcycle. [12]
Three Skycycle X-2s were built for Knievel. [13] [14] The first two were used for test flights. [15] Unable to fund further tests, Knievel used the third for the canyon jump. In 2007, the Skycycle X-2-1 was offered for sale for $5 million. [16] The X-2-2 is owned by the Knievel estate and periodically exhibited along with a museum of Knievel artifacts.
In the era before cable networks, the Sunday afternoon jump was covered live by Top Rank on paid closed-circuit television in several hundred theaters and arenas, [17] [18] [19] promoted by Bob Arum with an average price of ten dollars. [15] [20] [21] Taped coverage by ABC was shown on Wide World of Sports later in the month. [22] [23] The ticket price at the launch site was twenty-five dollars. [5] [6] [7]
The jump was pushed out of the newspaper headlines by the pardon of Richard Nixon by President Gerald Ford. [24] [25]
A memorial to Knievel is located near the Perrine Bridge, [26] which crosses the Snake River about 1.6 miles (2.6 km) west of the jump site. The monument was dedicated in September 1985, at a small ceremony attended by Knievel. [27]
Since the 1974 launch, seven daredevils have expressed interest in recreating the jump, including Knievel's two sons Robbie and Kelly. Robbie announced he would recreate the jump in 2010, but the project went no further upon his death. [28] Stuntman Eddie Braun worked with Kelly Knievel (son of Robert Craig "Evel" Knievel) and Scott Truax (son of Robert Truex) to recreate the jump using a replica of the Skycycle X-2. [29] Braun successfully flew his rocket, named Evel Spirit, across the Snake River Canyon on September 16, 2016. [30]
On July 18, 2012, Audi of America recreated Knievel's Snake River jump in a promotional commercial for the Audi RS5. The commercial depicts the RS5 being driven by a professional driver and jumping the canyon off a jump ramp. [31]
"Each time I was hurt, they all said, ‘that guy is lucky that he’s not dead.' And they were right. But I wanted to get up and try it again."
— Evel Knievel, 2012 Audi commercial [32]
Aircraft with the same name:
Robert Craig Knievel, known professionally as Evel Knievel, was an American stunt performer and entertainer. Throughout his career, he attempted more than 75 ramp-to-ramp motorcycle jumps. Knievel was inducted into the Motorcycle Hall of Fame in 1999. He died of pulmonary disease in Clearwater, Florida, in 2007, aged 69.
Twin Falls is the county seat and largest city of Twin Falls County, Idaho, United States. The city had a population of 51,807 as of the 2020 census. In the Magic Valley region, Twin Falls is the largest city in a 100-mile (160 km) radius, and is the regional commercial center for south-central Idaho and northeastern Nevada. It is the principal city of the Twin Falls metropolitan statistical area, which officially includes the entirety of Twin Falls and Jerome Counties. The border town resort community of Jackpot, Nevada, 50 mi (80 km) south at the state line, is unofficially considered part of the greater Twin Falls area. Located on a broad plain at the south rim of the Snake River Canyon, Twin Falls, is where daredevil Evel Knievel attempted to jump across the canyon in 1974 on a steam-powered rocket. The jump site is northeast of central Twin Falls, midway between Shoshone Falls and the Perrine Bridge.
Robert Edward Knievel II was an American motorcyclist and stunt performer. He had also used the stage name Kaptain Robbie Knievel.
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Shoshone Falls is a waterfall in the western United States, on the Snake River in south-central Idaho, approximately three miles (5 km) northeast of the city of Twin Falls. Sometimes called the "Niagara of the West," Shoshone Falls is 212 feet (65 m) in height, 45 feet (14 m) higher than Niagara Falls, and flows over a rim nearly one thousand feet (300 m) in width.
The I. B. Perrine Bridge is a four-lane truss arch span over the Snake River in the western United States. Located in southern Idaho just north of the city of Twin Falls, it carries U.S. Highway 93 over the Snake River Canyon, connecting Twin Falls County with Interstate 84 in Jerome County.
A steam rocket is a thermal rocket that uses water held in a pressure vessel at a high temperature, such that its saturated vapor pressure is significantly greater than ambient pressure. The water is allowed to escape as steam through a rocket nozzle to produce thrust.
Snake River Canyon is a canyon formed by the Snake River in the Magic Valley region of southern Idaho, forming part of the boundary between Twin Falls County to the south and Jerome County to the north. The canyon ranges up to 500 feet deep and 0.25 miles wide, and runs for just over 50 miles. Perrine Bridge crosses the canyon immediately north of the city of Twin Falls; Hansen Bridge crosses the canyon to the east of Twin Falls. Shoshone Falls is located approximately 5 miles east of Perrine Bridge along the canyon. The canyon continues through Glenns Ferry and south of Boise, making it longer than 50 miles.
Captain Robert C. Truax (USN) was an American rocket engineer in the United States Navy, and companies such as Aerojet and Truax Engineering, which he founded. Truax was a proponent of low-cost rocket engine and vehicle designs.
Douglas "Doug" Malewicki is an American aerospace engineer and inventor of Polish descent. Many of his inventions concern flying vehicles, but the range is quite diverse. He is also the concept creator and inventor of Skytran PRT.
Sheldon Arthur "Shelly" Saltman was a promoter of major sports and entertainment events including the worldwide promotion of the Muhammad Ali / Joe Frazier heavyweight championship boxing matches, creating the Andy Williams San Diego Golf Classic and helped to arrange the independent NFL Players Association games during the 1982 NFL season strike. Saltman was perhaps best known to the public as the man who Evel Knievel tried to beat to death with a baseball bat in 1977.
Top Rank, Inc. is a boxing promotional company founded by Jabir Herbert Muhammad and Bob Arum, which was incorporated in 1973, and is based in Las Vegas, Nevada.
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Anthony Martin is a professional escape artist, locksmith and Christian Evangelist most known for his daredevil skydiving and underwater escapes on network television.
Evel Knievel is a 1971 American biographical film starring George Hamilton as motorcycle daredevil Evel Knievel.
Evel Knievel is a 2004 American drama film directed by John Badham and written by Jason Horwitch. The film stars George Eads, Jaime Pressly, Lance Henriksen, Fred Thompson, Beau Bridges, Matt Gordon and Peter MacNeill. The film premiered on TNT on July 30, 2004. The movie is well known for its many gaffes and inaccurate portrayal of Knievel and his career.
Walter Lloyd Blackadar Jr. was an American whitewater pioneer, best known for his solo first descent of Turnback Canyon on the Alsek River.
The Evel Knievel Museum is a non-profit museum located in Topeka, Kansas, United States. The museum houses the largest collection of authentic Evel Knievel memorabilia in the world, including interactive experiences. It is 13,000 square feet and two stories. The museum is located adjacent to Topeka's Historic Harley-Davidson and opened in June 2017.
Stuntman is a 2018 American documentary film, written and directed by Kurt Mattila. The events of the movie follow stunt performer Eddie Braun's recreation of Robert "Evel" Knievel's failed Skycycle X-2 jump over Snake River Canyon in Idaho.