737-200 Advanced
FF 15 Apr 1971 (Line number 400 onwards)
As well as incorporating all of the later -200 modifications, the -200 Adv included major wing improvements such as new leading edge flap sequencing, increase in droop of outboard slats, extension of the inboard Krueger Flap (see flight controls section), to produce a significant increase in lift and a reduction of take-off & approach speeds for better short field performance or an MTOW increase of 2268Kg. Autobrake, improved anti-skid, automatic speedbrake for RTO, automatic performance reserve and even nose-brakes became available. Again, kits were available for existing operators of the -200. With the JT8D-15 at 15,500Lbs the MTOW was now up to 52,390Kgs and MLW 48,534Kgs. These performance improvements increased the service ceiling by 2,000ft to 37,000ft and the maximum cabin differential pressure was increased from 7.5 to 7.8psid to accommodate this.
In 1973 when noise was becoming a factor, the nacelle was acoustically lined by Boeing and P&W swapped one fan stage for two compressor stages in the JT8D-17 while increasing thrust to 16,000Lbs. The JT8D got up to 17,400Lbs thrust on the -17R.
For many years United remained the only major US carrier to order large numbers of 737's because although the aircraft was designed to be flown by 2 crew, the US flight-crew union ruled that aircraft in that class had to be flown by three crew. United were forced to fly their 737's with three crew until 1981. Air France had also been trying to order the aircraft for several years but were unwilling to because of staff opposition until after 1981.
Most pilots who have flown different generations of the 737 say that this is easily the best for handling. Read some comments at PPRuNe.
Click for flightdeck photo and description
Click for technical specifications
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