CLEARANCE: Top Secret
- Jan 3, 2006
- Reaction score
Re: Breguet 941 VTOL and related projects
Ah yes, the STOLPort. Correct me if I'm wrong, but London City Airport is the only major, commercially successful STOLPort that comes to mind. I also have the impression that the BAe 146 was specifically designed for STOLPort operation, and the relative lack of sales success of the type stems in part from the failure of the "City Airport" concept as a well as the compromised operating economics of the STOL optimized airframe.LowObservable said:IIRC, the end result of all the "Model 188" demos and STOLPort studies was as follows:
Since the STOLPort was likely to be a "brownfield" site on the edge of town, it made sense to make the runway slightly longer and accept somewhat higher T/O and approach speeds. Importantly, this eased the engine-out control case to the point where the cross-shafted engines of the 941 were not needed. However, four engines were still required (for engine-out and flap blowing) together with robust controls (spoilers and a large double-hinged rudder).
This led to a joint US airline spec for a 48-seat STOL transport, and the DH Dash 7 was designed to it.