From:Eric Smith
Subject:RE: RE: RE: Henderson Engine Date:Mon Aug 21 17:48:59 2017
Response to:6625
I envy you, Doug, to have seen the Excelsior "scriptures". It is near criminal that the AMA has locked those documents away, and apparently, with no plans to reproduce them. I quit the AMA when they lobbied to open federal land to dirt bikes, and ATVs. I've seen too many squashed turtles, and dead mammals from human intrusion. In regards to Henderson engineering documentation; I believe much of that was destroyed, and what did survive was scattered to the winds when the Schwinn family lost interest in motorcycles. Back in the mid '90s, many original Ex/Hen linen drawings hit the AMCA swap meets. Nothing earth shaking, but still great stuff. I spoke at length with Joe Koller about that stuff, as he knew Blackie Schwinn. He said the damage had been done many years earlier when it was just junk, and clutter and Schwinn needed the space for bicycles, and then WW2 contracts. As for 1919 stuff. I have a Z2 Hen, and even in it's day, I think Schwinn considered the Zs to be the red-headed step child that he did not want. Hence, Z2s were put together as a stop gap to the model K and engineering was done on the floor via expedience, and need. Why bother with a product that was obsolete in 1918? I would be quite surprised if (even in 1919) there was any detailed documentation of the Z2 Henderson, other than the minimal changes (i.e cylinders). For the record, the 1919 is my favorite Henderson because it was so dismissed by Schwinn, but still improved by Schwinn, and probably was at the acme of it's inherited Detroit DNA.

You are correct. I was in the AMA when these came in and was
able to go through the drawings and literature. Kid in a
candy store. Unfortunately, getting cooperation from the AMA
can be difficult.

I seem to recall all the original Schwinn library went to the
AMA Library in Ohio

Hi, does anyone have
Construction drawings, 1919 he Henderson motor? with
dimensions? Greetings