Bob
I have not seen the B'mann model (only pics) and since it was proposed but unbuilt (for Biles Coleman) it could be either a mallet or simple articulated. However, Biles Coleman is a lumber company and all the 2-6-6-2's built for logging were in fact mallets ... check out this site for a listing http://loggingmallets.railfan.net/list/list.htm
I would guess based on this that the B'mann model is a mallet. I have never personally heard a mallet chuff so cannot comment on the sound.
Regards ... Doug
I have not seen the B'mann model (only pics) and since it was proposed but unbuilt (for Biles Coleman) it could be either a mallet or simple articulated. However, Biles Coleman is a lumber company and all the 2-6-6-2's built for logging were in fact mallets ... check out this site for a listing http://loggingmallets.railfan.net/list/list.htm
I would guess based on this that the B'mann model is a mallet. I have never personally heard a mallet chuff so cannot comment on the sound.
Regards ... Doug