[Milsurplus] Speaking tube in Japanese Aircraft

[Hubert Miller]

Here's a photo from a Japanese two-seat trainer aircraft, observer position. The observer has "speaking tubes" for listening and speaking. I looked at a few wartime photos the other
day and will summarize some observations in a following post. I know that the number of people actually interested in such minutiae is vanishingly small, but I also know that there a
a few other devoted fanatics out there.
-Hue


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