Harris VOS question

[Chuck Guzis]

I'm looking at what I suspect is a labeled Harris VOS (Vulcan) tape.

Is it the case that the Harris minis are incapable of writing tape
records that aren't a multiple of 3 bytes in length?  The reason I ask
is that the VOL HDR, etc. records all seem to be 81 bytes in length.
All other records on the tape are also a multiple of 3 bytes long.

Anyone remember anything like this?  The Bitsavers documents are of no
help as far as I can determine.

--Chuck