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trim

Posted: Wed Jul 09, 2014 2:17 am
by T. C. Downey
Power off in the decent, when you roll your trim all the way nose up, at what speed does it settle out at?

lets say you have 2 aboard, with a half bag of fuel.

Re: trim

Posted: Wed Jul 09, 2014 2:55 am
by ghostflyer
About 65 kts.

Re: trim

Posted: Wed Jul 09, 2014 3:49 am
by T. C. Downey
ghostflyer wrote:About 65 kts.
Knots ?
74.5 MPH. :)

Re: trim

Posted: Wed Jul 09, 2014 6:28 am
by cowman57
I'm no expert on flying the 170, as I've only had my B model since last fall, but basically I don't even use my trim. I found that flaps applied when power is reduced keeps the plane in trim.

Re: trim

Posted: Wed Jul 09, 2014 8:40 am
by fishdoc
The 'A' model will give you an arm cramp if you don't use it... :wink:

Re: trim

Posted: Wed Jul 09, 2014 6:14 pm
by GAHorn
T. C. Downey wrote:Power off in the decent, when you roll your trim all the way nose up, at what speed does it settle out at?

lets say you have 2 aboard, with a half bag of fuel.
Which model 170?

Re: trim

Posted: Thu Jul 10, 2014 12:32 am
by T. C. Downey
gahorn wrote:
T. C. Downey wrote:Power off in the decent, when you roll your trim all the way nose up, at what speed does it settle out at?

lets say you have 2 aboard, with a half bag of fuel.
Which model 170?
There is only 1 model 170, the rest are 170-"A"s or 170-"B"s

George I am surprised you didn't know that :)

Re: trim

Posted: Thu Jul 10, 2014 8:11 am
by Poncho73
T. C. Downey wrote:Power off in the decent, when you roll your trim all the way nose up, at what speed does it settle out at?

lets say you have 2 aboard, with a half bag of fuel.
Just wondering...why would you need to roll your trim "all the way up"? Not being smart, but what is the issue? FYI, I've never needed maximum trim, in either direction, including max loads on my 48

Re: trim

Posted: Thu Jul 10, 2014 10:39 pm
by hilltop170
170A, O-300-D, 76-55 prop, 2 people, 18gal, idle power, full nose up trim, stabilized descent from 3500'msl;

Flaps up, 67mph, 600fpm descent

Flaps down, 65mph, 800fpm descent

Re: trim

Posted: Fri Jul 11, 2014 3:50 am
by hilltop170
T. C. Downey wrote:
gahorn wrote:
T. C. Downey wrote:Power off in the decent, when you roll your trim all the way nose up, at what speed does it settle out at?

lets say you have 2 aboard, with a half bag of fuel.
Which model 170?
There is only 1 model 170, the rest are 170-"A"s or 170-"B"s

George I am surprised you didn't know that :)

According to the TCDS there are three models; Model 170, Model 170A, Model 170B.

Re: trim

Posted: Fri Jul 11, 2014 11:40 pm
by ghostflyer
well just tried the scenarios given and it's still 65kts. But I have a different engine up front and a the aircraft weights a a bit more . It was a stabile descent at just under 500 ft a min .

Re: trim

Posted: Sat Jul 12, 2014 10:07 pm
by GAHorn
T. C. Downey wrote:
gahorn wrote:
T. C. Downey wrote:Power off in the decent, when you roll your trim all the way nose up, at what speed does it settle out at?

lets say you have 2 aboard, with a half bag of fuel.
Which model 170?
There is only 1 model 170, the rest are 170-"A"s or 170-"B"s

George I am surprised you didn't know that :)
OK then,..... what size bag? :roll:

Re: trim

Posted: Sun Jul 13, 2014 12:40 am
by T. C. Downey
gahorn wrote:[
OK then,..... what size bag? :roll:[/quote]

I'll give ya a pass, for the short answer.

Re: trim

Posted: Sun Jul 13, 2014 12:49 am
by GAHorn
Well, I did it today JUST FOR YOU, Tom.... :wink:

...half fuel, Jamie and I, zero flaps, full nose up trim, idle power....it settled at 60 mph indicated. (1K MSL, 90 degrees F, baro 30.10)