Hi and thanks for your posting! Yes, I am aware, that there are
many remakes of this navigation system. I am pretty sure, that
the 3854/36... units are from the German Tornados as we got these
from a big sale of the German air forces. The 3854/37... may be
from the UK ADV's or Gr.1s or even from Nimrod. These two types
I discovered have got minor differences in electronics and
major ones in the auto calibration procedures in software. I
have never seen a Japanese one but of course I know that "the
internet" mentions usage of a Ferranti unit in the Mitsubishi F-1.
Since this thread was active, many things happened and apart from
connecting the RPMD as shown in the YouTube video I have got an
attitude indicator connected now and I showed the FIN1010 with
RPMD, logger and ADI in working condition on the vintage computer
festival in Munich this year:
Vintage Computing / Avionics / Programmer Electronic Control
The system survived the 7 live demos and I got lot of positive
feddback on the demos and the talk I gave on the festival.
I also repaired some units (two FIN1012 I have got) and one of a
friend, but I am still keen on getting in touch with people with
know how from the good old days - so many thanks for responding!
I am very keen on collecting all information on these units and I still
do not have got any knowledge, how the platform was assembled and
especially how the values of the components on the platform trimmer
PCB have been determined during production. So e.g. in replacing a gyroscope,
there must have been (a) a mechanical alignment procedure as the gyro
can be rotated to adjust the input axis and (b) some jig must have
been used to subject the the azimuth cluster (or the whole platform?)
to movements recording the outputs and probably a computer (that type?)
calculated the values for the trim components afterwards?
In August I am visiting the UK and I hope I can visit the APSS close
to Edinburgh to see what remained from the Ferranti developments and
as far as I know, the original building has been destroyed sine than:
Activities/Projects.............................................
Links to talk and poster with some pictures and information I collected
over the years; sorry, but only German language:
http://www.baigar.de/TornadoComputer...e-20170429.pdf
http://www.baigar.de/TornadoComputer...e-20170420.pdf
Best regards and have a nice weekend,
Erik.
P.S. You can always get in touch at my private email erik -at- baigar.de