Sharp Nemesis NXT

The Sharp Nemesis NXT (which stands for "Neoteric experimental Technology")[1] is a sport-class kit-built aircraft, designed for air racing. It was designed by Nemesis Air Racing's president Jon Sharp, as a follow-on to their Sharp Nemesis. It is a two-seat, single engine, low wing, retractable gear kit aircraft. As designed, the aircraft is powered by a Lycoming TIO-540-NXT Thunderbolt six-cylinder engine.[2][3]

Sharp Nemesis NXT
RENO sport nxt SF6T4606.jpg
Role Racing aircraft
Manufacturer Air-C-Race
Designer Jon Sharp
First flight 10 July 2004
Developed from Sharp Nemesis
Developed into Rolls-Royce ACCEL
A Dan Wright build taxis at Mojave

In 2011 the German company Air-C-Race became the official builder of RC models of the Nemesis NXT.[4][5]

Racing historyEdit

The prototype Nemesis NXT, race number 3X (N333XT), flown by Jon Sharp, won the 2008 Reno Air Races Sport Class championship, setting a new race record speed of 392 mph (631 km/h). During the ten-day event, Sharp set a heat record of 393 mph (632 km/h) and during the qualification, set a record of 409.297 mph (658.700 km/h), the first time a racer in this class had broken the 400 mph speed barrier. Speeds of over 400 mph (640 km/h) are usually only turned in by Unlimited Class racing aircraft.[2] A second NXT, race number 42 fielded by Relentless Racing, finished fifth with an average speed in the gold race of 336.526 mph (541.586 km/h).[6]

Jon Sharp announced his retirement from Pylon Racing in August 2011, as the pilot with the highest number of wins in the history of racing. In 2015 he was invited to donate his prototype Nemesis NXT to the National Air and Space Museum, and it was delivered in 2018. Museum directors planned to display it in their Nation of Speed gallery at the museum's central site, but when they realized it was too large to fit through that building's access door, they moved it to the Steven F. Udvar-Hazy Center in Fairfax County, Virginia, where it is on permanent display (as of 2022) in the Boeing Aviation Hangar alongside its older sibling, Nemesis.[7][8]

RecordsEdit

On 30 July 2008, Sharp set an FAI class C1b world record for speed over a straight 3 km (1.9 mi) course at 573.46 km/h (356.33 mph).[9]

On 20 September 2009, Sharp won the Super Sport Gold race at Reno with a speed of 407.061 mph (655.101 km/h).[10]

On 16 September 2009, Sharp qualified first with a speed of 412.554 mph (663.941 km/h) for the top spot in the Super Sport class at Reno.[10]

On 17 September 2009, Sharp set a Super Sport race record of 383.292 mph (616.849 km/h).

On 18 September 2009, Sharp beat the previous day's record with a speed of 399.336 mph (642.669 km/h).

On 19 September 2009, the aircraft reached 406.051 mph (653.476 km/h), the first homebuilt aircraft to exceed 400 mph (640 km/h) average race speed on the Reno course.

On 20 September 2009, Sharp won the Super Sport Gold race at a record speed of 407.061 mph (655.101 km/h). He earned his 15th National Championship (another record) completing the "Record a Day and Two on Sunday" Reno campaign of 2009.

In September–October 2015 Sharp set five FAI records for piston aircraft; all are current in 2022:

  • In the under-1000 kg weight class C1b, average 393 miles/hour for four 3-km runs at low altitude;[11] and 406 miles/hour for two 15 km runs at unrestricted altitude[12]
  • In the under-1750 kg class class C1c, average 415 miles/hr on the 3-km course,[13] 407 miles/hr on the 15 km,[14] and 397 miles/hr for a 100 km circuit.[15]
 
Jon Sharp's N333XT at Reno, 2009

SpecificationsEdit

Data from Nemesis NXT[16]

General characteristics

  • Crew: 1
  • Capacity: 2
  • Length: 23 ft (7.0 m)
  • Wingspan: 24 ft (7.3 m)
  • Wing area: 70 sq ft (6.5 m2)
  • Airfoil: Modified NASA NLF (Natural Laminar Flow)
  • Empty weight: 1,600 lb (726 kg)
  • Max takeoff weight: 2,600 lb (1,179 kg)
  • Fuel capacity: 90 US gal (340 l; 75 imp gal)
  • Powerplant: 1 × Lycoming TIO-540-NXT piston engine, 350 hp (260 kW)

Performance

  • Cruise speed: 325 mph (523 km/h, 282 kn) IAS
  • Stall speed: 90 mph (140 km/h, 78 kn) IAS
  • Rate of climb: 3,000 ft/min (15 m/s)
  • Fuel consumption: 0.369 lb/mi (0.104 kg/km)
  • Fuel consumption: 20 US gal (76 L)/h in cruise, 35 US gal (130 L)/h at full power
  • Take Off: 2,500 ft (760 m) @ sea level
  • Landing: 3,500 ft (1,100 m) @ sea level

ReferencesEdit

  1. ^ "Relentless Air Racing Team Official Site". 28 April 2006. Archived from the original on 28 April 2006. Retrieved 20 January 2019.
  2. ^ a b "History Made at Reno by Jon Sharp and Lycoming", Lycoming News Archived 11 October 2010 at the Wayback Machine
  3. ^ Bayerl, Robby; Martin Berkemeier; et al.: World Directory of Leisure Aviation 2011-12, p. 113. WDLA UK, Lancaster UK, 2011. ISSN 1368-485X
  4. ^ Tacke, Willi; Marino Boric; et al: World Directory of Light Aviation 2015-16, p. 119. Flying Pages Europe SARL, 2015. ISSN 1368-485X
  5. ^ "Nemesis NXT from Air-C-Race". AIR-RC. Retrieved 1 September 2022.
  6. ^ Reno 2008 race results database, Reno Air Racing Association, archived from the original on 5 December 2008
  7. ^ Alice George (26 July 2022). "How the Nemesis air racers redefined speed". At The Smithsonian. Retrieved 26 July 2022.
  8. ^ Jeremy Kinney (21 June 2022). "The Nemesis Dynasty". Air & Space Quarterly. Retrieved 1 September 2022.
  9. ^ FAI world record database Archived 12 May 2006 at the Wayback Machine
  10. ^ a b Racing results, Reno Air Racing Association, archived from the original on 8 October 2006
  11. ^ "Jon M. Sharp (USA) (17683)". 10 October 2017.
  12. ^ "Jon M. Sharp (USA) (17720)". 10 October 2017.
  13. ^ "Jon M. Sharp (USA) (17684)". 10 October 2017.
  14. ^ "Jon M. Sharp (USA) (17682)". 10 October 2017.
  15. ^ "Jon M. Sharp (USA) (17685)". 10 October 2017.
  16. ^ "Nemesis NXT". Nemesis Air Race. Retrieved 28 August 2017.

External linksEdit