faster 182?

"Kingfish" wrote:

On Feb 12, 11:38 am, "Dan Luke" wrote:
Got a demo flight in a new Skylane Saturday morning. Very nice airplane.
The G1000 stuff was a bit bewildering at first but otherwise it flew just
like any good 182...

I got a demo ride in the SR22 and Columbia 400 last year. Like you, I
was behind the curve a bit with the Avidyne & G1000 panels (and I fly
an EFIS equipped Pilatus) The capabilities are pretty amazing, once
you read through the (lengthy?) ops manual

The bad news is that we were burning 15.5 GPH to get that speed.

What pwr & mixture setting? EGTs?

23" & 2300 rpm, IIRC. The mixture was 25 deg. ROP. Didn't check the EGTs.
I wish I'd looked at the CHTs.

Dan Luke wrote:

The bad news is that we were burning 15.5 GPH to get that speed.
What pwr & mixture setting? EGTs?

23" & 2300 rpm, IIRC. The mixture was 25 deg. ROP. Didn't check the EGTs.
I wish I'd looked at the CHTs.



Then something is wrong. At 23 squared that is 65% for me(IO-520) and
book flow is 13 gph.

On Feb 12, 2:53 pm, "Dan Luke" wrote:

What pwr & mixture setting? EGTs?

23" & 2300 rpm, IIRC. The mixture was 25 deg. ROP. Didn't check the EGTs.
I wish I'd looked at the CHTs.

Dan, that EGT value looks quite close to the "red box" value that John
Deakin teaches in his engine management course. Here's a link to his
latest article, which covers (or reviews, actually) the EGT/CHT
relationship. Good stuff here..

http://www.avweb.com/news/pelican/194452-1.html

Will wrote:
On Feb 12, 2:53 pm, "Dan Luke" wrote:
What pwr & mixture setting? EGTs?
23" & 2300 rpm, IIRC. The mixture was 25 deg. ROP. Didn't check the EGTs.
I wish I'd looked at the CHTs.

Dan, that EGT value looks quite close to the "red box" value that John
Deakin teaches in his engine management course. Here's a link to his
latest article, which covers (or reviews, actually) the EGT/CHT
relationship. Good stuff here..




I believe he said the 23 squared was 65%. If so he is in the red box.
You want to be richer then 100 ROP or leaner than peak EGT.

"Newps" wrote: Will wrote:
On Feb 12, 2:53 pm, "Dan Luke" wrote:
What pwr & mixture setting? EGTs?
23" & 2300 rpm, IIRC. The mixture was 25 deg. ROP. Didn't check the
EGTs.
I wish I'd looked at the CHTs.

Dan, that EGT value looks quite close to the "red box" value that John
Deakin teaches in his engine management course. Here's a link to his
latest article, which covers (or reviews, actually) the EGT/CHT
relationship. Good stuff here..




I believe he said the 23 squared was 65%. If so he is in the red box. You
want to be richer then 100 ROP or leaner than peak EGT.

According to the boss of the flight school who was giving me the test flight,
that is the setting achieved by using the Garmin G1000's "lean assist"
feature. Also according to him, that's Cessna's SOP for the airplane.


--
Dan
C-172RG at BFM