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Typical pitch trim settings for Cherokee 180
Posted:
Fri May 14, 2010 12:27 amby snippyfsxer
I'm curious what some typical trim settings would be for a Cherokee 180, with two people up front. The Carenado Cherokee requires about 50% up trim for takeoff, 0 trim for cruise, and about 90% trim up for landing at 80mph (69 knots), full flaps.
In the real plane, are those figures realistic?
Re: Typical pitch trim settings for Cherokee 180
Posted:
Fri May 14, 2010 4:37 amby RitterKreuz
In the real plane, are those figures realistic?
not even remotely
Re: Typical pitch trim settings for Cherokee 180
Posted:
Fri May 14, 2010 4:57 amby Brett_Henderson
The (real) PA28 is a little nose-heavy.. especially when flown by a sole occupant... but nothing requring that amount of trim.
Re: Typical pitch trim settings for Cherokee 180
Posted:
Fri May 14, 2010 6:16 amby snippyfsxer
The (real) PA28 is a little nose-heavy.. especially when flown by a sole occupant... but nothing requring that amount of trim.
Looks like I discovered the fine art of FDE fiddling just in time then!
Any ballpark figures on what ranges one might encounter in the real thing?
Re: Typical pitch trim settings for Cherokee 180
Posted:
Fri May 14, 2010 7:30 amby Brett_Henderson
Unless it's a Cherokee with which I'm intimately familiar.. I'll set the trim neutral, no matter the load.. and then start my trim-groping while climbing.
Again.. if you're the sole occupant, and try to fly a text-book approach, you'll have a good amount of trim at first.. but it will be nearer to neutral, as you deploy flaps.. and is never a significant amount.
The problem with MSFS trim, is that it's not trim.. It's more like a range selection. Let's say that an elevator has a 30-degree range (15-up, 15-down). Proper trim would allow you set the elevator somewhere in that range so that it will stay there, hands-off. MSFS trim just moves the range. Like.. nose-up trim would just make the elevator range change,,
Re: Typical pitch trim settings for Cherokee 180
Posted:
Fri May 14, 2010 8:14 amby olderndirt
[quote]Unless it's a Cherokee with which I'm intimately familiar.. I'll set the trim neutral, no matter the load.. and then start my trim-groping while climbing.
Again.. if you're the sole occupant, and try to fly a text-book approach, you'll have a good amount of trim at first.. but it will be nearer to neutral, as you deploy flaps.. and is never a significant amount.
The problem with MSFS trim, is that it's not trim.. It's more like a range selection. Let's say that an elevator has a 30-degree range (15-up, 15-down). Proper trim would allow you set the elevator somewhere in that range so that it will stay there, hands-off. MSFS trim just moves the range. Like.. nose-up trim would just make the elevator range change,,
Re: Typical pitch trim settings for Cherokee 180
Posted:
Fri May 14, 2010 7:25 pmby skoker
When I flew we set it to 20% and forgot about it.
Re: Typical pitch trim settings for Cherokee 180
Posted:
Fri May 14, 2010 8:45 pmby olderndirt
When I flew we set it to 20% and forgot about it.
Curiosity forces me to ask - 20% of what?
Re: Typical pitch trim settings for Cherokee 180
Posted:
Tue May 18, 2010 3:41 amby FridayChild
The problem with MSFS trim, is that it's not trim.. It's more like a range selection. [...] Nose-down trim not only sets hands-off elevator deflection negative, it ALSO takes away some of the available up-deflection.
I'm sure you've encountered a model where rotation was near impossible until adjusting the trim "up" ?
This finally explains it for me! I knew there was something weird with the trim in FS. Thanks!