International Aero Engines
International Aero Engines AG (IAE) is an amalgamation of originally five companies with the aim of developing the V2500, a new engine in the medium thrust class for the Airbus A320 family .
The name of the product V2500 symbolizes on the one hand the Roman number 5 for the number of founding members and 2500 for the desired thrust class of 25,000 lbf . However, as with many other engines, the thrust class has meanwhile increased to 33,000 lbf, the original variant (A1) with only 25,000 lbf is no longer in production. Founding members in 1983 were Rolls-Royce , Pratt & Whitney , Japanese Aero Engines Corporation , MTU Aero Engines and Fiat Aviazione . Due to financial turmoil, the Fiat Group separated from its shares in the 1990s and each half was taken over by Rolls-Royce and Pratt & Whitney. The company Avio Aero (formerly Fiat Avio) is still connected to the project as a supplier of parts.
On October 12, 2011, Rolls-Royce announced that it would sell its shares in IAE to Pratt & Whitney for $ 1.5 billion. However, Rolls-Royce continues to be responsible for its corresponding components on the engine and also for 50% of the final assembly.
The European final assembly of the entire engine was relocated in 2005 from Rolls-Royce in Derby to the German subsidiary in Dahlewitz near Berlin . Additionally, the second final assembly line will continue at Pratt & Whitney in Middletown, CT .
The engines are used on the A320 family in thrust versions from 110 kN to 150 kN (versions A1 and A5 / A5Select) and compete with the CFM56 from the manufacturer consortium CFMI . The V2500-D5 was the exclusive drive on the McDonnell Douglas MD-90 until production was discontinued in 2000.
In the A320 Family, the V2500 was selected as the engine for 42.3% of all aircraft ordered.
Sales figures
In 2003, IAE achieved a market share of approx. 87% for new orders for the A320 Family. At that time there were more than 5,000 engines in the order books, of which the 3,000th engine was delivered in December 2006, with the following breakdown:
- 172 A319 aircraft
- 8 A319CJ aircraft (Airbus Corporate Jetliner)
- 3 A319LR aircraft
- 560 A320 aircraft
- 133 A321 aircraft
- 104 MD90 aircraft
In the meantime, the Select and SelectOne programs are being used to further develop the engines with the aim of reducing fuel consumption and extending the service life. In the SelectTwo program announced in March 2011 as a response to the PW1100G , software changes are intended to achieve a further fuel saving of 0.58% in the engines available from 2013.
Technical specifications
| Type | Thrust (kN) | By-pass ratio at start |
Total pressure ratio |
Fan diameter (m) |
Length (m) | Dry matter (kg) | Admission | plane |
|---|---|---|---|---|---|---|---|---|
| V2500-A1 | 111 | 5.4: 1 | 35.8: 1 | 1,587 | 3.2 | 2327 | 1989 | A320 |
| V2522-A5 | 102 | 4.9: 1 | 32.8: 1 | 1.613 | 3.2 | 2359 | 1992 | A319 |
| V2524-A5 | 106.75 | 4.9: 1 | 32.8: 1 | 1.613 | 3.2 | 2359 | 1996 | A319 |
| V2525-D5 | 111 | 4.8: 1 | 34.5: 1 | 1.613 | 3.2 | 2484 | 1995 | MD90 |
| V2527-A5 | 117.88 | 4.8: 1 | 32.8: 1 | 1.613 | 3.2 | 2359 | 1993 | A320 |
| V2528-D5 | 124 | 4.7: 1 | 35.2: 1 | 1.613 | 3.2 | 2484 | 1995 | MD90 |
| V2530-A5 | 139.67 | 4.6: 1 | 35.2: 1 | 1.613 | 3.2 | 2359 | 1994 | A321 |
| V2533-A5 | 146.80 | 4.5: 1 | 35.2: 1 | 1.613 | 3.2 | 2359 | 1996 | A321 |
Web links
- Pratt & Whitney website
- Rolls Royce website
- MTU Aero Engines website
- EASA type certification of the "V2500" series (PDF; 860 kB)
Individual evidence
- ↑ FlightGlobal.com: IndiGo's Engine Choice Holds Clues for Leap-X and GTF Battle , January 13, 2011
- ↑ FlugRevue, May 2011, p. 86: The IAE counterattack.