APT-E Factory Drawings

[shreds]

Hm, I've got some numbers somewhere but can't remember where, typical.

 

There were only two wheelset sizes used on the real thing, the E1 power bogie sets were a larger dia, and the articulated wheelsets were physically the same smaller ones on both the SA and E1T bogies.

 

Actually IIRC the wheelset frames were the same too, just the major portion of the SA bogie was thrown away. (good thing too....)

 

 

Ah found it being quoted as 750mm, but that doesn't solve the mystery if there were two sizes.