The overall length of the baseline and short-range 7E7 is expected to settle at around 55.5m (182ft), while the stretch will be around 61.6m. Maximum take-off weight (MTOW) for the baseline will be between 181,600 and 186,140kg (400,000 and 410,000lb), while the stretch will have a much higher range of MTOW options from around 217,900 to 227,000kg. Boeing says the thrust requirement is still being led by the MTOW of the stretch but adds that the revised size of the baseline and its short-range sibling means these will operate with a "significant" de-rate. Due to the slight scale-back of the baseline 7E7 model, the study thrust range is now larger - 45,000 to 70,000lb (200-310kN).
Source: Flight International
