Hi guys,
The S-58 / H-34 series helicopters has a space (mostly) covered by mesh between the engine firewall and the front bulkhead of the cabin / cockpit. Of course the driveshaft runs through this space (the cooling fan sucks / blows cooling air through the mesh too) as do some control rods / wires. IIRC I have read "somewhere" that the engine oil tank as well as the battery occupies this space too.
Can anyone help me with a photo / drawing of this space? Pictures a-plenty of the engine bay behind the clamshell doors, but not the area behind it. And a visibly bare are