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06 Dec 2019, 04:11 [ UTC - 5; DST ]


Greenwich AeroGroup



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 Post subject: Re: Flying the Skywagon
PostPosted: 13 Nov 2019, 21:57 
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Joined: 07/22/14
Posts: 4216
Post Likes: +4696
Company: Mountain Airframe LLC
Location: Mena, Arkansas
Username Protected wrote:
Pulled the cowl to do an oil change. Heater shroud is damaged.

I've got a couple new old stock shrouds that look like yours (minus the damage). They still have Cessna pick tags on them, but so faded that I can't read the part numbers. Send me some better pictures inside and outside with dimensions.


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 Post subject: Re: Flying the Skywagon
PostPosted: 13 Nov 2019, 23:22 
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Joined: 06/12/11
Posts: 104
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Aircraft: J3C, C185
Username Protected wrote:
Chris,
Do you have the IO520 in your 185? Felt like my 185 was on an express elevator with its prop engine combo. Stu would have to share the size/type now. Can't imagine getting even more performance.


Yes, stock IO-520.

I can’t wait. I’ve been casually looking for an 86” Mac 401, but ever since the Voyager came out at Oshkosh I knew I was in trouble.


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 Post subject: Re: Flying the Skywagon
PostPosted: 14 Nov 2019, 04:05 
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Joined: 02/04/18
Posts: 54
Post Likes: +6
Aircraft: C180
Chris and Patrick,

How have you found the top prop? Every prop inspection I wait for the " you need a new prop" report. Flying a 180 here with stock O470R.

Cheers. Rich


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 Post subject: Re: Flying the Skywagon
PostPosted: 14 Nov 2019, 12:46 
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Joined: 01/10/13
Posts: 618
Post Likes: +123
Location: greenville,ms
Aircraft: baron 58
I had the 86 mac on mine, takeoff and climb was awesome, did slow me down a little in cruise I think, but I had big tires and bubble windows too


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 Post subject: Re: Flying the Skywagon
PostPosted: 14 Nov 2019, 13:06 
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Joined: 06/12/11
Posts: 104
Post Likes: +91
Aircraft: J3C, C185
Username Protected wrote:
Chris and Patrick,

How have you found the top prop? Every prop inspection I wait for the " you need a new prop" report. Flying a 180 here with stock O470R.

Cheers. Rich


It’s been great so far with one glaring exception that appears to be specific to the 80” 3-blade.

There are probably hundreds of 80” Top Props running around on Bonanzas with no problems that lead long and happy lives. I’ve always been super happy with Hartzell, and between my father and me, we’ve owned lots of them, both round and scimitar blades.

But when you bolt one onto a 180/185, it’s a crapshoot whether or not you’ll have an unsolvable 1/2 order vibration. If it’s on floats, it’s almost guaranteed to shake. 206s are fine, as are other airframes, but there’s something about the 180/185 airframe/engine mount combo that often doesn’t like an 80” Hartzell. Swapping to a Seaplanes West mount will apparently also fix it, but if I’m going to spend the cash, I’d rather switch to a prop that better suits the flying I do.

I personally know of three 185s (including mine) that shake (or shook) at high RPM with an 80” Hartzell. All three already have the heavy duty mount (not the SW mount). Mine has been dynamically balanced three times (each time to within .03 ips or better) and I’ve flipped the prop 180 degrees as well. Flipping the prop helped, but it’s still unacceptable above 2400 RPM. In the cases I have first-hand knowledge of, changing props (86” McCauley or the new 86” Voyager) solved the vibration issue.

Hartzell acknowledges this, and to their credit even warns right on their product page that a new mount might be needed with the Top Prop on a 180/185.

Vibration is weird.


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 Post subject: Re: Flying the Skywagon
PostPosted: 14 Nov 2019, 14:21 
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Joined: 11/14/19
Posts: 1
Post Likes: +5
Aircraft: Cessna 180
Hey all, I'm new here, but here's my baby. 1970 180H I've owned it for 1.5 years and have been steadily improving every little bit of it. Pretty much stock in everyway and I intent to keep it that way. Image attached.


Please login or Register for a free account via the link in the red bar above to download files.


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 Post subject: Re: Flying the Skywagon
PostPosted: 14 Nov 2019, 19:02 
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Joined: 12/09/07
Posts: 14925
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Location: Hammond, LA (KHDC) Cascade, ID (U70)
Aircraft: C182
Username Protected wrote:
Hey all, I'm new here, but here's my baby. 1970 180H I've owned it for 1.5 years and have been steadily improving every little bit of it. Pretty much stock in everyway and I intent to keep it that way. Image attached.


That's a great first post! :thumbup:

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 Post subject: Re: Flying the Skywagon
PostPosted: 14 Nov 2019, 23:59 
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Joined: 10/19/08
Posts: 885
Post Likes: +723
Location: Far West Texas
Aircraft: Baron 58, Pitts S2A
Austin: That piece depicts EXACTLY how a Cessna 180 should live: Open, wild, and free. Congratulations on your airplane, and may you enjoy it for many years. Mine has been with me for a long time, and it is a keeper. You will find the 180 to be a true friend and faithful servant.

TN


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 Post subject: Re: Flying the Skywagon
PostPosted: 15 Nov 2019, 11:29 
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Joined: 12/29/12
Posts: 492
Post Likes: +201
Username Protected wrote:
Chris and Patrick,

How have you found the top prop? Every prop inspection I wait for the " you need a new prop" report. Flying a 180 here with stock O470R.

Cheers. Rich



Hi Rich. My plane has the IO520 with the 80" top prop. Mine works as advertised. I don´t notice any vibrations that Chris mentions. My plane has the sea planes west mount. Maybe that is why I don´t notice the vibration? I don´t have any before comparison because I have always flown it like it is today. I did not have any 185 experience prior to this one either.

Rgs,
Patrick.


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 Post subject: Re: Flying the Skywagon
PostPosted: 15 Nov 2019, 23:15 
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Joined: 05/29/13
Posts: 10687
Post Likes: +7093
Company: Easy Ice, LLC
Location: Marquette, Michigan; Scottsdale, AZ
Aircraft: C310, C510, C185
I swear. If it don’t fly three times a week I lose my touch. Wtf. First landing was so bad. Didn’t pin it at all.

http://youtu.be/H0tMz5zULTY

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 Post subject: Re: Flying the Skywagon
PostPosted: 16 Nov 2019, 04:55 
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Joined: 02/04/18
Posts: 54
Post Likes: +6
Aircraft: C180
Thanks for the comments. I currently have a Mac C66. A couple of knots slower in the cruise isnt an issue, but its always fun, and sometimes very helpful to have better take off and climb performance. The vibration comment doesnt sound ideal. 88 blackmac, or 80 scimitar mac perhaps?


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 Post subject: Re: Flying the Skywagon
PostPosted: 16 Nov 2019, 06:18 
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Joined: 12/12/12
Posts: 75
Post Likes: +43
Company: Go Aviation
Aircraft: E90, PA18, 310, 185
Hey all, enjoying this thread! Just got my first 185, have had and still have a pa-18 in the fleet but needed a family adventure plane. Robertson stol, turbo, wing x, rig flies great. Have the 86” Mac 2 blade now, going to change in the future just not sure what to.


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 Post subject: Re: Flying the Skywagon
PostPosted: 16 Nov 2019, 10:46 
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Joined: 05/29/13
Posts: 10687
Post Likes: +7093
Company: Easy Ice, LLC
Location: Marquette, Michigan; Scottsdale, AZ
Aircraft: C310, C510, C185
Next up


Please login or Register for a free account via the link in the red bar above to download files.

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Mark Hangen
Deputy Minister of Ice (aka FlyingIceperson)
Power of the Turbine
"Jet Elite"


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