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CJ Air Scoop

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Saber369(at)comcast.net
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Posted: Tue Apr 09, 2019 9:28 am Post subject: CJ Air Scoop

Can anyone tell me the purpose of the small air scoop on the lower left side of the Nanchang?  Not on all CJs... Just a few that I've seen.

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GeorgeCoy

Joined: 02 Dec 2010
Posts: 310

Posted: Tue Apr 09, 2019 9:59 am Post subject: CJ Air Scoop

I imagine it is there to keep the pilot cool when the main fan (prop) quits

in flight!.



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PS

Joined: 08 Sep 2006
Posts: 84
Location: Texas

Posted: Tue Apr 09, 2019 10:13 am Post subject: Re: CJ Air Scoop

I recognize my old CJ!



The scoop was for heat muff supply.



Phil

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Phil

k7wx

Joined: 24 May 2010
Posts: 117

Posted: Tue Apr 09, 2019 10:43 am Post subject: CJ Air Scoop

Jon,

Mine was also one of those unusual CJs that had this same air scoop. Did not appear to serve any purpose, so I later removed it and filled in the hole. 



Here is a picture taken the day it was purchased and flown to Arizona from the Bay area. The scoop is visible on the lower cowling. 



Warren Hill

N464TW

Mesa, AZ



[img]cid:1D972B37-A62E-46C8-92D5-7A3FBB87C1EC[/img]



  	  Quote: 	
		  On Apr 9, 2019, at 10:28 AM, JON <Saber369(at)comcast.net (Saber369(at)comcast.net)> wrote:

Can anyone tell me the purpose of the small air scoop on the lower left side of the Nanchang?  Not on all CJs... Just a few that I've seen.Sent from Xfinity Connect Application<IMG_20190406_151815756.jpg>

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Harv

Joined: 01 Jul 2010
Posts: 172

Posted: Wed Apr 10, 2019 1:08 am Post subject: Re: CJ Air Scoop

Mine has this scoop



I also suspect it was to supply fresh air to a cabin heat exchanger mounted on the port side exhaust manifold. Mine was missing the exchanger but did come with a mixing unit located between the front and rear cockpits and there were holes in the fwd firewall on both sides down by your feet that I believe the ducting could have passed through.

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