Eyebrow windows purpose and reason not found in new generation aircraft?
Eyebrow windows positioned above the main Glareshield
𝗩𝗶𝘀𝘂𝗮𝗹 𝗰𝗶𝗿𝗰𝘂𝗶𝘁𝘀 𝗮𝗻𝗱 𝘀𝗽𝗼𝘁𝘁𝗶𝗻𝗴 𝘁𝗿𝗮𝗳𝗳𝗶𝗰 :-
👳🏻♂️👉These windows allowed for better visibility in tight turns, for example, during a visual approach to a runway.
👳🏻♂️👉They could also help pilots in better spotting other aircraft that could be on a potential collision course.
👳🏻♂️👉 There is also the idea circulating that they were to offer a better view of the sky if navigation by stars was required.
Nᴏᴡ ᴇʏᴇʙʀᴏᴡ ᴡɪɴᴅᴏᴡ ɴᴏᴛ ғᴏᴜɴᴅ ɴᴇᴡ ᴀɪʀᴄʀᴀғᴛs :-
👳🏻♂️👉 Airplane Eyebrow windows have heavily regulated maintenance intervals. Removing just these four small windows reportedly saves around 300 hours of maintenance over the lifetime of the aircraft.
👳🏻♂️👉 The windows were no longer needed for visibility, as navigational systems became more sophisticated.
👳🏻♂️👉 During the summer months, it would shine right in on the foreheads of the flight crew. Often, the pilots would fill the windows with check-lists , newspaper 🗞 or other documents to keep the light out, as the windows served no purpose during regular flight.