Your data on the Navy Otter is for the latest version.
The bird really started out as a UC-1 for the Antarctic Explorer's. It changed designation to U1-A, then U-1A. Realizing that the birds were not really like the Army/USAF Otter's, they changed the designation to U-1B. Several Navy Otter's were given to various Army National Guard units and assumed the U-1B classification because of differing avionics.
I just wrote a paper for the Army Otter & Caribou Assoc's November issue. The article is abouit the last US military flying Otter.
I was a Crew-chief/Engineer on an Otter in the Army and you can see details about the Otter on my website at:
http://t-6.com/twelfthaviation/support/12th_home.html or
http://t-6.com/twelfthaviation/support/navyotters.html
for the navalized version. I track all BUNo's and give dispositions on the birds.
I also have pictures of the remaining two Navy Otters. One at Pensacola, on static display and the remaining flying Otter at PAX River, MD at the Naval Test Pilot School.
Otter regards,
Bill 02/09/2002 @ 14:46 [ref: 4279]