Density Altitude to compare climb performance

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6597
Posts: 533
Joined: Tue May 01, 2018 7:00 am
Name: David Sbur
Location: Vancouver WA KVUO
Aircraft Type: '46 140 0-200A
Occupation-Interests: Agriculture
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Density Altitude to compare climb performance

Post by 6597 »

Was pondering climb performance and I was thinking that for comparing different aircraft maybe there should be the same density altitude across the board for starters. I was getting maybe 1100fpm briefly yesterday on a cool morning near sea level at KVUO (yeah, it's a climb prop on steroids with an 0-200, 80mph indicated with a slight head wind, -400'DA), but how would I compare that with other 140's? If we were all on the same 'density altitude' that would level the playing field. Or, maybe I'm over-thinking this...

(edit) Hmmm, I found a density altitude site on the web that I can use on my laptop, may be useful.

https://www.geosearch.ch/

Now for an app for the android......
V529
Posts: 695
Joined: Tue May 01, 2018 7:00 am
Name: Victor G
Location: Michigan
Aircraft Type: C-120
Occupation-Interests: Work on airplanes till the cows come home..........they're still out.
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Re: Density Altitude to compare climb performance

Post by V529 »

That would be good info.

I see 1000 fpm on a good cool day, but typically less than that, although I almost climb out at 80 indicated.......
0-200, fabric wings, standard prop.
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6597
Posts: 533
Joined: Tue May 01, 2018 7:00 am
Name: David Sbur
Location: Vancouver WA KVUO
Aircraft Type: '46 140 0-200A
Occupation-Interests: Agriculture
Contact:

Re: Density Altitude to compare climb performance

Post by 6597 »

Victor,

That sounds comparable. Just for entertainment I thought I would try a few 'time to climb' to 1000'AGL, here's what I got a few days ago...full fuel and me

DA 500' 1:41 900fpm mostly

DA 1300' 1:34 950fpm mostly
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