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Classic Wings Magazine WWII Naval Aviation Research Pacific Luftwaffe Resource Center
When Hollywood Ruled The Skies - Volumes 1 through 4 by Bruce Oriss


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PostPosted: Thu Mar 26, 2020 8:31 pm 
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I just couldn't figure it out. I am sure plenty here do know but what the heck was that sharks fin on those old WWII aircraft pitot tubes for. And when I did ask several people involved with warbirds, they didn't know. Only thought about it occasionally but wondered for years. Google searches didn't help. But I finally took an IFR groundschool to renew my rating which had lapsed(long story as I had one in another country) and they had a slide with a cutaway of one of those old pitot tubes with interior parts labelled. Then I had the information to google pitot tube riser and got the explanation.

I know, I am rambling on but for those that ever wondered why there is a sharks fin on some of those old pitot tubes....

google it or look at this link....

https://books.google.ca/books?id=bMwIAQ ... er&f=false


Last edited by 54H60 on Fri Mar 27, 2020 9:52 pm, edited 1 time in total.

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PostPosted: Thu Mar 26, 2020 8:34 pm 
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Very interesting!! Don't you just love old books?!


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PostPosted: Thu Mar 26, 2020 8:43 pm 
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Thank you! I had wondered about that but never found an answer.

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PostPosted: Thu Mar 26, 2020 10:28 pm 
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That's a very good resource!

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PostPosted: Fri Mar 27, 2020 9:48 am 
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Good find! Many aircraft have static ports on the fuselage as well.

I wonder if the shark-fin was only used on the heated ones for IFR capable aircraft that were likely to encounter icing?


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PostPosted: Fri Mar 27, 2020 10:38 am 
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One of the ways in which the A-36 Mustang differed from all other Mustang production was that it had the shark-fin pitot tube on the end of a mast sticking out forward of the wing. Otherwise, all other Mustang production that came before and after it had the under-wing mounted type without the fin.

You can find both styles/types of pitot tubes (fin/no fin) on P-40's, mounted to the same type mast sticking out from the wing.


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PostPosted: Sat Mar 28, 2020 3:21 pm 
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That's very cool. I always assumed that it was just the occasional "Art Deco" engineering style of the time.

I learned something today. Thank you.

:drink3:

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