As currently proposed, the SSJ 100 family will comprise two different sizes of aircraft offered with two performance options - "basic" and "LR" (long range).
The 95- to 98-seat SSJ 100-95 is the lead variant in the development programme, and this is the size expected to prevail, so will be the major production version, says SCAC president Victor Subbotin.
The basic 95-seater is offered with a maximum take-off weight (MTOW) of 42,500kg (93,600lb) and an engine thrust of 15,650lb (70kN), offering a range with 98 passengers of 2,950km (1,600nm). The LR version has the same engine thrust, but a 3,400kg increase in MTOW, boosting range to 4,420km.
Although the 75- to 78-seat SSJ 100-75 is on the agenda, Subbotin says the only commitments for this variant are "soft" orders. "We plan to build the 75-seater once the 95-seater is finalised."
The SSJ 100-75 is 3.5m (11.5ft) shorter than the baseline 95-seater, but incorporates an identical wing, while the MTOW on the basic version is reduced to 38,800kg and engine thrust is derated by around 10%. The LR model has the same thrust rating as the 95-seater, and MTOW increased to 42,300kg.
"For the flight-test programme we will build one SSJ 100-75 and one SSJ 100-75LR, but the flight-test effort will be reduced as it can be validated from the 95-seater test programme," says Subbotin.
Further down the road, SCAC is considering the development of a stretched 110-seat version, but a final decision on such a move "will depend on the market" says Subbotin. "The engine and airframe is capable of being stretched to 110-120 seats - the latter would offer lower range and incorporate a high-density seating arrangement with reduced pitch."
SSJ 100-110 studies envisage an aircraft with the strengthened structure and higher weights of the SSJ 100-95LR stretched by around 3m with 1.5m plugs either side of wing. "If we started development now it could be in service in 2010, but 2012 is a more realistic target," says Subbotin.
| Superjet 100 family specification | SSJ100-75 | SSJ100-75LR | SSJ100-95 | SSJ100-95LR | SSJ100-110* |
| Length (m) | 26.3 | 26.3 | 29.8 | 29.8 | 32.8 |
| Wingspan (m) | 27.8 | 27.8 | 27.8 | 27.8 | 27.8 |
| Wing area (m2) | 10.3 | 10.3 | 10.3 | 10.3 | 10.3 |
| Height (m) | 33.7 | 33.7 | 33.7 | 33.7 | 33.7 |
| Internal cabin width (m) | 3.24 | 3.24 | 3.24 | 3.24 | 3.24 |
| Maximum take-off weight (kg) | 38,800 | 42,300 | 42,500 | 45,900 | 45,900 |
| Maximum landing weight (kg) | 35,000 | 35,000 | 39,400 | 39,400 | 39,400 |
| Maximum payload (kg) | 9,130 | 9,130 | 12,250 | 12,250 | n/a |
| Engine take-off thrust (lb) | 13,750 | 15,650 | 15,650 | 15,650 | 15,650 |
| Long range cruise speed (Mach) | 0.78 | 0.78 | 0.78 | 0.78 | 0.78 |
| Required runway length (MTOW/ISA/SL) | 1,520 | 1,520 | 1,530 | 1,530 | n/a |
| Accommodation (one-class 32in pitch) | 78 | 78 | 98 | 98 | 110 |
| Design range (km) at MTOW/full pax | 2,900 | 4,550 | 2,950 | 4,420 | n/a |
| Notes: *proposed variant - data provisional Source: Sukhoi Civil Aircraft |
Source: Flight International
