I'm wondering if someone on here is intimately familiar with how the BAe146 landing performance data was obtained.
Looking in the FCOM there is a small variation in landing distance required for different 146 variants at the same weight. A BAe146-100 requires about the same amount of runway as a -300 with no wind, more runway with a tailwind, and less runway with a headwind. This is all at the same weight. Example:
Code:
Type | Weight | 15 knots TW | 0 wind | 40 knots HW |
| | | | |
-100 | 33,000 kg | 1700m | 1220m | 890m |
-300 | 33,000 kg | 1620m | 1220m | 920m |
The difference is relatively small but it is there and it is consistent. It seems that for the same weight, a BAe146-100 is more affected by wind than a larger -300. The aircraft are nominally identical aside from fuselage length. Same engines, same wing, same frontal area etc.
The question is, how is the data obtained and is there a reason why the smaller 146 is more affected by wind or is it just the result of minor variations in flight testing?