|Quoting Starlionblue (Reply 3):|
Heh. People forget to send me updates. I can hardly be blamed for this. Wink
Based on my read of this, it looks like the last number meaning a certain engine only works within a type (A3XX), not types within the family, which doesn't quite make sense to me. For example, An A340-313 and an A340-213 have exactly the same engine, the CFM56-5C4, whereas an A319-112 and an A320-212 have different engines. Structurally, these two sets of planes are rather analogous (one of each pair is a slight shrink), so why not keep the same engine designation numbers? If I were in a MX
team, I would find it much easier to memorize one set of last numbers that correspond to an entire family (e.g. A32X-X33 always has a V2527) than have to get it for each of the different members.
Also, I've read a number of seemingly conflicting things regarding the HGW/non-HGW designations about the A340-500/600. On your site, the A340 500/600 appear to have a consistent designation for engine types, as follows:
A340-X42 (where X can be 5 or 6): T556
I've seen in numerous posts that the HGW variants have an "X" appended to their designation, and that both have the 380 ton MTOW and more powerful engines. Thus, I would expect the entire family to look like this:
A340-541: T553, 372 t MTOW
A340-542X: T556, 380 t MTOW (HGW version)
A340-642: T556, 368 t MTOW
A340-643X: T560, 380 t MTOW (HGW version)
Now, there are plenty of pictures of LH
A340-600s in the a.net database, and as far as I can see they're all labeled "A340-642." On LH-taufnamen
, the last 10 of them (D-AIHP-D-AIHZ) are listed as A340-642X. Does this mean that LH
bought 380 t A340-600s with T556 engines, or is there an inconsistent labeling format? If so, what's the correct one?