F-WWKH From Taiwan, joined Jun 1999, 322 posts, RR: 0 Reply 3, posted (13 years 2 months 4 weeks 12 hours ago) and read 1157 times:
Look at the size and look a the numbers - A318 and A319 are both smaller than the original design, the A320. A321 is longer. You immediately recognize the logic without even thinking about it, which presume would not be the case if the A319 is callled A320-300.
AussieErj145 From , joined Dec 1969, posts, RR: Reply 4, posted (13 years 2 months 4 weeks 9 hours ago) and read 1147 times:
The numbers do make sence, with a smaller number for a smaller plane. A320 made a bit smaller = A319, made a bit smaller still =A318. Take the original A320 and make it larger =A321, it's simple. Does this mean if a further shrink were made it would be the A317, and a longer stretch would be A322?
Another point was also raised about the A340. Why is ther an A340-300, and upcoming 500 and 600 rather than A341, A342 A343?