I think the 436 had KIFIS. Kolsman integrated flight instrument system as it was called then.
Agreed.
Were there two Loran sets for redundancy?
No.
Consol - maximum 60 counts. i.e. dots, gradually building up to a single tone then gradually subsiding to positive dashes. One might count 20 dots and 32 dashes = 52, the missing 8 in the constant tone would be divided between dots and dashes, halved and added to each, so count would be 24 dots, which would be the position line to plot from the consol grid printed on the chart ( the first character, be it dots or dashes decided the type of count.)
One tried to hear as many positive dots or dashes as possible before the tone created a discrepancy, thereby reducing the error, so one would be straining to hear the difference, having got to, say, 26, 27, 28 when the door would burst open and a female voice would shout - "anyone for a cup of tea?" Oh, Christ, shut up, start again - 1,2,3,4 and so on!
There was also a Consol station at Nantucket ( 194 Kc ? ) but in my experience, if by the time one was in range one needed it then one had bigger problems to consider ! I don't recall it being much use on the N.Atl. tracks that we normally used.
There seemed to be a tendency to get slightly South of track when on a Southerly track approaching 10 West from the West - or maybe it was just me not paying attention. One of the old Coastal Command skippers agreed with me, and reckoned that there was a "blip" in the magnetic variation printed on the chart at that point.
Happy Days.