Why do airlines PAINT the nose BLACK? Explained by CAPTAIN JOE

Published: 28 October 2021
on channel: Captain Joe
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00:00 Intro
00:55 What is under the nose?
01:25 How does the weather radar work?
02:11 What is the radome made of?
02:55 Cheap solution
03:40 Black paint
03:55 Was it style?
04:10 The Airbus question!
04:35 Paint ahead of windscreen
05:45 Retro liveries
06:02 Outro

Hey everyone, in today's video we'll be talking about the black nose of airplanes. Why were they painted black? And what's hidden under the radome?

Back in the days, older airline jets, turboprops and fighter jets could often be seen with black painted nose cones. Sometimes the entire nose , or only the very front it, the rest of it being either white or in the airline livery. 
The immediate question arises, what is actually beneath the nose cone? 
Well no surprises here, as most of you know, the weather radar. There are exceptions,  some regional or other smaller aircraft, which have the engine at the front, mounted their weather radar onto the leading edge of one of the wings. 
The radar antenna needs to be able to see ahead of the aircraft, in order to detect upcoming thunderstorms or clouds with a lot of precipitation, which the pilots then circumnavigate. Therefore nothing should obscure the radar beams. Meaning the nose cone can't be made out of metal like the rest of the plane. 
Compare this to your latest visit to the dentist when they took an X-ray of your teeth. The rays of the X-ray machine can't penetrate through metal, leaving a white spot on the photo. Similar to the weather radar, anything blocking the radar rays will give a distorted picture on your weather screen.

Nevertheless, over time, dust, debris or hail battering the nose could slowly abrade the sensitive surface of the radome. That could cause water to enter, freeze up and damage the radome even more. Engineers then came up with the idea to place a rubber coating over the radome to prevent further abrasion. It was a cheap solution, and the colour of this rubber material coincidentally was black. 
The amount on how much was covered in black rubber material varied from airline to airline. Technically only the very forward tip of the nose had to be protected. 
Later, airlines stepped away from the rubber coating and then painted the noses with black paint. Back then, the fuselage was covered in lead-based paint to prevent corrosion but wasn't allowed to be sprayed over the nose due to the metal compounds of that paint. So yet again cheaper black paint was applied without interfering or limiting the Radar's performance. Eventually, that colour range grew more and more, and airlines painted their planes in their colour of choice to match the livery! 
One other reason was style. For example, former Lufthansa planes, such as the 707, 727, and 737 fleet had a polished metal finish. And because polished aluminium can't be bought in a spray can, Lufthansa chose a subtle black to blend in with the rest of their livery.

But see more in the video

Thank you very much for your time! I hope you enjoy this video!
Wishing you all the best!

Your "Captain" Joe

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