Pitot heat for 170A?

How to keep the Cessna 170 flying and airworthy.

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AnotherPNWpilot
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Joined: Tue Aug 11, 2020 6:34 am

Pitot heat for 170A?

Post by AnotherPNWpilot »

I have a 1949 Cessna 170A. Looking to see if anyone has a way or recommendation for adding pitot heat to a certified 170A. Looking to make a nice little soft IFR bird. Also any additional recommendations for IFR equipment I’m definitely curious. Thanks in advance.


Austin
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IA DPE
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Re: Pitot heat for 170A?

Post by IA DPE »

When you join the Association, you’ll have access to the Document Library which has some info on this. :wink:
1955 C170B N2993D s/n 26936
1986 DG-400 N9966C
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Bruce Fenstermacher
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Re: Pitot heat for 170A?

Post by Bruce Fenstermacher »

Very common to add the later common Cessna L shaped heated pitot. Our TIC170A members library has 337s. I don't know but wouldn't doubt Cessna may have a SB to add it to the early 172. You should probably have a 35 amp generator minimum to make it practical to use, maybe even to get past the electrical load requirement on installation.

A heated pitot is not a requirement for IFR BTW.
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AnotherPNWpilot
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Re: Pitot heat for 170A?

Post by AnotherPNWpilot »

Thank you! I appreciate the info. I went ahead and joined. I currently have a Jasco alternator in it that i think will do the trick but I’ll double check. I’ve picked up ice a lot at well below the reported freezing level a fair amount in my local area so I would rather it for practical use.
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n2582d
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Re: Pitot heat for 170A?

Post by n2582d »

AK175-23D

I’d also recommend adding a sump to the pitot static line. See SK175-8
Gary
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GAHorn
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Re: Pitot heat for 170A?

Post by GAHorn »

The ORIGINAL (Cessna approved) heated pitot for the 170 was the Kollsman 518B-01 (aka “sharkfin”) such as is often found on C190s and C195s.

Here’s the Cessna Instructions in the MX Library:

viewtopic.php?f=36&t=15955

<edited 1/22>
'53 B-model N146YS SN:25713
50th Anniversary of Flight Model. Winner-Best Original 170B, 100th Anniversary of Flight Convention.
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