Extra EA-300
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The Extra Flugzeugbau EA300 is a two-seat aerobatic monoplane capable of Unlimited category competition. It was designed in 1987 by Walter Extra, a German aerobatic pilot, and built by Extra Flugzeugbau.
Design and development
Design of the Extra 300 was based on the Extra 230, an early 1980s monoplane having a wing made of wood. The Extra 300 has a welded steel tube fuselage covered in aluminium and fabric. The midset wing has a carbon fiber composite spar and carbon composite skins.<ref name="Janes 93 p100">Lambert 1993, p. 100.</ref> A symmetrical airfoil, mounted with a zero angle of incidence, provides equal performance in both upright and inverted flight. The landing gear is fixed taildragger style with composite main legs and fiberglass wheel pants. The powerplant is a fuel-injected Lycoming AEIO-540 which produces Template:Cvt.<ref>Template:Cite web</ref>
The first two-seat Extra 300 made its maiden flight on 6 May 1988, with German type certification following on 16 May 1990. The single-seat Extra 300S flew on 4 March 1992.<ref name="Janes 93 p100"/>
The Extra 300 is stressed for ±10 G with one person on board and ±8 G with two. Some Extra 300s are registered in the experimental category under a Special Certificate of Airworthiness in the U.S., while others are type certified in the aerobatic category.<ref name="Wagstaff">Template:Cite web</ref>
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Maintenance and operating costs
The Extra EA-300 series, widely used in aerobatic training and competition, has maintenance and operational requirements consistent with its high-performance design.
Regular inspections are mandated to ensure continued airworthiness. A 50-hour inspection typically includes checks on the elevator trim system, while a 1,000-hour inspection involves detailed evaluations of trim tab hinges and actuator levers for wear or damage.<ref>Template:Cite web</ref>
Operating costs include both fixed and variable expenses. The average variable operating cost is approximately US$152.50 per flight hour, including fuel, oil, maintenance, and overhaul reserves.<ref>Template:Cite web</ref> Fuel consumption is typically Template:Cvt per hour ,
Variants
- 300
- Original two-seat version<ref name="Brasseys 99 p426">Taylor 1999, p. 426.</ref>
- 300S
- The 300S is a single-seat version, with a wingspan reduced by Template:Convert, and fitted with larger ailerons.<ref name="Janes 93 p100"/><ref name="Brasseys 99 p426"/>
- 300SP
- The 300SP is a performance version of the 300S single-seater. Weight was reduced, and the tail of the 330SX installed.<ref name="Extra300SP">Template:Cite web</ref> It is discontinued, being replaced by the 330SC.
- 300SHP
- The 300SHP (HP = high performance) is an uncertified version of the 300SP with a Lycoming AEIO-580 engine.<ref name="Flightline">Template:Cite web</ref>
- 300SR
- The Extra 300SR is a modified aircraft using a specially designed high-lift wing for the Red Bull Air Race World Series.<ref>Template:Cite web</ref>
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- The Extra 300L is a Lycoming AEIO-540-powered two-seat aircraft, with low-mounted wing and shorter fuselage.<ref name="Brasseys 99 p426"/> More of these two-seater variants have been produced than any other model. Its wing is mounted at the bottom of the fuselage, with its span reduced from Template:Cvt. Improved ailerons boost the 300L's roll rate to 400° per second. All 300Ls are fully certified under FAA and European Joint Aviation Authorities regulations.<ref>Template:Cite web</ref>
- 300LP
- The 300LP (P = performance) is a reduced-weight version of the 300L, redesigned for better performance in competitions and airshows.<ref name="Flightline" />
- 330LC
- The Extra 330LC (C = carbon) is a refined version of the 330L, with more extensive use of carbon fiber materials, especially in the fuselage and wings. It boasts a top speed of Template:Cvt and a ±10 G load factor.<ref name="SCA">Template:Cite web</ref>
- 330LX
- The Extra 330LX is a high-performance, two-seat aerobatic aircraft powered by a 315 horsepower Lycoming AEIO-580-B1A engine. Designed for advanced aerobatic training and competition, it features a tandem seating arrangement, carbon fiber wing assembly with integral tanks, and a carbon composite empennage structure. The fuselage is constructed from 1.7734 steel, and the aircraft is equipped with a Muehlbauer MTV 9-B-C/C198-25 three-blade propeller. The 330LX offers exceptional aerobatic performance, making it a preferred choice for serious competition pilots and airshow performers.<ref>Template:Cite web</ref>
- 330LT
- The Extra 330LT is a Lycoming AEIO-580 powered two-seat aircraft, adapted for touring. It has an EFIS cockpit and a reduced roll rate in comparison with the 330LX.<ref>Template:Cite web</ref>
- 330LE
- The Extra 330LE is a one-seat aircraft powered by an electric engine made by Siemens, delivering Template:Cvt, for 50 kg. On Thursday, March 23, 2017, the Extra 330LE set two new speed records, said Siemens : "At the Dinslaken Schwarze Heide airfield in Germany, the electric aircraft reached a top speed of around Template:Cvt over a distance of Template:Cvt. On Friday, March 24, 2017, the Extra 330LE gave another premiere performance by becoming the world's first electric aircraft to tow a glider into the sky".<ref>Template:Cite web</ref>
- 330SC
- The Extra 330SC is a Lycoming AEIO-580-powered single-seat aircraft with improved roll rate and easier roll stops, designed specifically for unlimited category competition.<ref>Template:Cite web</ref>
- 330SX
- A development of the 330SC that was first flown in early July 2023, with first deliveries scheduled for 2024. Powered by a Lycoming AEIO-580 engine, it has one seat with a wider cockpit, shorter fuselage, a redesigned cowling, improved control stick clearance and increased headroom over the 330SC.<ref name="OConnor10Jul23">Template:Cite web</ref>
Operators
Civilian
- Aviation Performance Solutions is the largest user of Extra 300Ls, with a fleet of eight aircraft used for upset prevention and recovery training (UPRT) in the United States at its bases in Mesa, Arizona and Arlington, Texas.<ref>Template:Cite news</ref><ref>Template:Cite web</ref>
- The Blades private aerobatic team displays at air shows in Britain using a team of four Extra 300LPs. It offers passenger flights to members of the public and aerobatic training for pilots.<ref>The Blades Template:Webarchive official website.</ref>
- Patty Wagstaff has flown the Extra 230, 260, and various models of the 300 in aerobatic competitions and airshows since the mid-1980s.<ref>Template:Cite web</ref>
- Template:Interlanguage link operates eight Extra 300 aircraft, of which three are SC versions and five are L versions.<ref>Template:Cite web</ref><ref>Template:Cite web</ref> They are mainly used for aerobatic flights under the Hawks of Romania team name at various public events.
- Sky Combat Ace, a U.S.-based aviation adventure company, operates a fleet of Extra 330LC aircraft to offer civilian customers aerobatic flight experiences, including air combat simulations and stunt flying, under the supervision of FAA-certified flight instructors.<ref name="SCA" />
Military operators
- Chilean Air Force – The Escuadrilla de Alta Acrobacia Halcones ("Chilean Air force High Aerobatics Squadron, called "Hawks") has used the 300L variant since 2003.
- Royal Jordanian Air Force
- The Royal Jordanian Falcons, the aerobatic demonstration team of Royal Jordanian Airlines and the official national aerobatic team of Jordan, perform in a formation of four Extra 300s.
- The Kris Sakti, the Royal Malaysian Air Force aerobatic demonstration team
Specifications (EA-330LT)
See also
References
- Notes
- Bibliography
- Lambert, Mark. Jane's All The World's Aircraft 1993–94. Coulsdon, UK:Jane's Data Division, 1993. Template:ISBN.
- Taylor, Michael. Brassey's World Aircraft & Systems Directory 1999/2000. London:Brassey's, 1999. 1 85753 245 7.
External links
Template:Extra aircraft Template:Red Bull Air Race World Championship aircraft