[Milsurplus] Spring/Summer Project

[Hubert Miller]

I have not owned an R-1155, never even seen one up close. The only actual 3-dimensional one i saw was in Paul Allen's historic aircraft collection at Paine Field, near Everett WA.
That one is in a section of a British  bomber on display. 

>From the photos i have seen, i gather: 
BC-348 has 4 gang capacitor versus 3 in R-1155.
BC-348 has crystal filter
BC-348 has built in power - i don't know about R-1155
DF for U.S. aircraft was handled by a separate ADF system
BC-348 looks more robustly constructed inside. Tuning scale is better protected. 
BC-348 was used many years after WW2 - civilian airline, military planes, West German land forces, KW era FAC version ( with squelch box added ). I don't know  how large a
factor the abundant supply was in putting them to use. 

OPERATIONALLY - i do now know. It would be interesting to see a side-by-side, like on a YouTube video. 

re the bandspread, we would have to do a kHz/ one dial revolution  check on each receiver, on 80, 40, 20 bands. 
This would be very interesting to see. 

When i saw the inside of the R-1155, i was kind of shocked by how much metal had been abstracted from the construction. It occurred to me, i have never seen even a Japanese 
aircraft radio with such a lean interior, i mean use of metal and bracing and such. However - this is not actually decisive to  operational inferiority, as the Japanese aircraft HF
receivers were clearly behind in design, looking more like state of the art in maybe 1934.

I suspect that if the product had been designed for non wartime carrier service, and not wartime expendable short expected life, the design would have been more lavish in its
use of metal. 
-Hue