trim

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T. C. Downey
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trim

Post 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.
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ghostflyer
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Re: trim

Post by ghostflyer »

About 65 kts.
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T. C. Downey
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Re: trim

Post by T. C. Downey »

ghostflyer wrote:About 65 kts.
Knots ?
74.5 MPH. :)
cowman57
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Re: trim

Post 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.
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fishdoc
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Re: trim

Post by fishdoc »

The 'A' model will give you an arm cramp if you don't use it... :wink:
1952 170B (with the sexy rounded tail)
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GAHorn
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Re: trim

Post 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?
'53 B-model N146YS SN:25713
50th Anniversary of Flight Model. Winner-Best Original 170B, 100th Anniversary of Flight Convention.
An originality nut (mostly) for the right reasons. ;)
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T. C. Downey
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Re: trim

Post 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 :)
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Poncho73
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Re: trim

Post 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
hilltop170
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Re: trim

Post 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
Last edited by hilltop170 on Fri Jul 11, 2014 3:59 am, edited 1 time in total.
Richard Pulley
2014-2016 TIC170A Past President
1951 170A, N1715D, s/n 20158, O-300D
Owned from 1973 to 1984.
Bought again in 2006 after 22 years.
It's not for sale!
hilltop170
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Re: trim

Post 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.
Richard Pulley
2014-2016 TIC170A Past President
1951 170A, N1715D, s/n 20158, O-300D
Owned from 1973 to 1984.
Bought again in 2006 after 22 years.
It's not for sale!
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ghostflyer
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Re: trim

Post 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 .
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GAHorn
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Re: trim

Post 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:
'53 B-model N146YS SN:25713
50th Anniversary of Flight Model. Winner-Best Original 170B, 100th Anniversary of Flight Convention.
An originality nut (mostly) for the right reasons. ;)
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T. C. Downey
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Re: trim

Post by T. C. Downey »

gahorn wrote:[
OK then,..... what size bag? :roll:[/quote]

I'll give ya a pass, for the short answer.
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GAHorn
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Re: trim

Post 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)
'53 B-model N146YS SN:25713
50th Anniversary of Flight Model. Winner-Best Original 170B, 100th Anniversary of Flight Convention.
An originality nut (mostly) for the right reasons. ;)
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