(Source)
There is a Ferrari-looking air-scoop behind the cockpit of the I-153 and most of the Stearman planes too.
What is that?
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asked Jan 1, 2018 at 18:23
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1$\begingroup$ @ymb1 I wasnt (Or werent ?) thinking it would be that bad, I simply copy pasted an "English language object template" and replaced the words $\endgroup$– Delta Oscar UniformJan 1, 2018 at 19:26
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4$\begingroup$ -1 wrong colour for freehand circles :-) $\endgroup$– BergiJan 1, 2018 at 22:55
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The F1 air-scoop / airbox is well clear of the driver's head to feed air into the engine (the airbox itself is shaped so that each cylinder gets equal share of air).
In your 3-view diagram, that's a streamlined headrest for drag reduction.
The I-153 has a top speed of 444 km/h (243 knots, 280 mph), whereas such streamlining is not needed for the leisurely paced Tiger Moth, for example.
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Googling photographs makes it clear, unlike that line drawing.
(Source) Click to view.
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1$\begingroup$ The windshield should already take care of the pilot's neck. The fairing is mostly for drag reduction. $\endgroup$ Jan 1, 2018 at 20:07
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$\begingroup$ The headrest protected the pilot in the case of the plane flipping over in a landing, specially in low-wing monoplanes like the I-16 or the Boeing 'Peashooter'. $\endgroup$– xxavierJan 1, 2018 at 21:33