Originally Posted by
Takwis
But the earlier 707-100s and -200s had no nudger/pusher, and yet it is a common type rating. I am certified to fly a 707-400, though I have never seen one. And also a 720 (which I have at least seen a few of), in the same type rating.
Interesting.
I too am rated on many Boeing Jets (737/747/757/767, all models) to name a few, but the numbers after a type signify incremental changes to the original aircraft such as seat capacity, engine thrust, ZFW,MTOW, fuselage length, wing span, EFIS.HUD.
Often, though, the higher
number indicates a
later version, and often-but-not-always, ... The
number after the
dash is basically just the variation of that
aircraft type.
I believe that Boeing didn't want MCAS mentioned as an "anti-stall" device in the certification documentation, otherwise this would have meant the MAX would need a "new type certificate". If you have the time read (as I am sure you are fairly knowledgeable on this subject) part 25, then look at the JATR MAX report regarding MCAS et al. The original type cert on the 1967 B737 didn't have nudgers/stick push; Thus the MAX doesn't have this safety feature, which in hindsight would have been important in the outcome of both these accidents.
None of these 737 prior or new (NG/MAX) had stick pushers, only stick shakers.
Some interesting facts: (Source BCAG).
737 Family There are approximately 42 miles (67 kilometers) of wire on the Next-Generation 737-600/-700/-800/-900ER (Extended Range) models, four miles (6.4 kilometers) less than the 737-300/-400/-500 models.
• On average, there are approximately 600,000 total parts on a Next-Generation 737 airplane.
• Overall, the entire 737 family is the best-selling commercial jetliner in history, with orders for more than 11,550 airplanes through December 2013 from 266 customers. More than 7,700 737s have been delivered.
• The 737 accounts for approximately 56 percent of all Boeing commercial airplanes sold over the past 10 years (2004-2013).
• On Feb. 13, 2006, Boeing delivered the 5,000th 737 to Southwest Airlines. Guinness World Records acknowledged the 737 as "the most-produced large commercial jet" in aviation history.
• On Dec. 16, 2011, Boeing delivered the 7,000th 737 to flydubai.
• On Nov. 5, 2012, Boeing delivered the 7,370th 737 to Lion Air.
• On Mar. 20, 2013, Boeing delivered the 7,500th 737 to Malindo Air.
• Typically, about 50 gallons (189 liters) of paint are used to paint an average 737. Once the paint is dry, it will weigh approximately 250 pounds (113 kilograms) per airplane, depending on the paint scheme.
• With approximately 5,580 airplanes in service, the 737s (early 737s, Classic and Next-Generation) represent more than a quarter of the total worldwide fleet of large commercial jets flying today. **
• More than 342 airlines in 111 countries fly 737s.**
• On average, over 2,000 737 airplanes are in the air at any given time.*
• One 737 takes off or lands every 2.0 seconds.*
• For all 737 models, there are approximately 24,000 scheduled passenger flights per day. This means that 31 percent of all commercial flights are on 737s.***
• The 737 family has carried more than 16.8 billion passengers; that is equivalent to every single man, woman and child flying at least twice. (2013 world population was 7.1 billion).*
• The 737 has flown more than 119.0 billion miles; equivalent to approximately 640 round trips from the earth to the sun.*
• The 737 family has flown more than 184 million flights.*
• The 737 family has flown more than 264 million flight hours; the equivalent to one airplane flying more than 30,200 years nonstop.*