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Trim settings the same for takeoff and landing?



 
 
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  #1  
Old April 22nd 10, 12:10 PM posted to rec.aviation.piloting,rec.aviation.student
Brian Whatcott
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Posts: 915
Default Trim settings the same for takeoff and landing?

george wrote:
/snip/
I found that I trimmed the aircraft to fly in what ever attitude I
required at that time.
I didn't make a point of examining where the pointer was .


Better check the trim setting before applying power on the takeoff.
As the Vital Actions used to be recited:
(and are now read out, in some form...)

Trim for takeoff
Throttle nut tight
Mixture rich
Air cold
Prop pitch fine
Fuel on mains
Flaps as required
Harness and Hatches secure
Instruments in limits and set

Brian W
  #2  
Old April 22nd 10, 09:44 PM posted to rec.aviation.piloting,rec.aviation.student
george
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Posts: 803
Default Trim settings the same for takeoff and landing?

On Apr 22, 11:10*pm, brian whatcott wrote:
george wrote:
/snip/
I found that I trimmed the aircraft to fly in what ever attitude I
required at that time.
I didn't make a point of examining where the pointer was .


Better check the trim setting before applying power on the takeoff.
As the Vital Actions used to be recited:
* (and are now read out, in some form...)

Trim for takeoff
Throttle nut tight
Mixture rich
Air cold
Prop pitch fine
Fuel on mains
Flaps as required
Harness and Hatches secure
Instruments in limits and set



Quoted from my original message
I found that I trimmed the aircraft to fly in what ever attitude I
required at that time.

I used the TTMPFFIIHHC check list on powered aircraft
CHICHAT or CBSITCB for sailplanes
  #3  
Old April 22nd 10, 04:22 PM posted to rec.aviation.piloting,rec.aviation.student
Mxsmanic
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Posts: 9,169
Default Trim settings the same for takeoff and landing?

writes:

Of course in simulators it will be the same. He doesnt' fly a plane
where weight and balance issues come to play that affect trim settings
like in my real plane.


Weight and balance issues are correctly simulated for the most part.

One other thing, I wouldn't have my trim set in the same spot on EVERY
flight either :-))) as you allude above, more variables then just set
trim and take off / land.


For takeoff, I have the trim set in the takeoff range (if any) marked on the
trim control or specified by the manual. For landing, I have trim set to
wherever it needs to be for my stabilized approach.

My original question concerned the fact that I often find that my trim setting
upon landing is also near the middle of the takeoff range, just as it was for
takeoff. And this seems to happen even though I'm not looking at the trim
indicator as I trim for my stabilized approach. I was just wondering if this
is a coincidence, or something that is more or less to be expected.

On large jets I don't know if this continues to be true, as checking the trim
position is difficult, and I make fewer trim adjustments because I'm usually
on autopilot until the approach is stabilized. There are other complicating
factors, too, such as the fact that control effects are partially inverted by
use of an autothrottle.
  #4  
Old April 22nd 10, 06:22 PM posted to rec.aviation.piloting,rec.aviation.student
[email protected]
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Posts: 838
Default Trim settings the same for takeoff and landing?

On Apr 22, 10:22*am, Mxsmanic wrote:
writes:
Of course in simulators it will be the same. *He doesnt' fly a plane
where weight and balance issues come to play that affect trim settings
like in my real plane.


Weight and balance issues are correctly simulated for the most part.


And you know this by how?????? What tangible facts can you base this
on your own experiences to know what you say above is true?

My original question concerned the fact that I often find that my trim setting
upon landing is also near the middle of the takeoff range, just as it was for
takeoff. And this seems to happen even though I'm not looking at the trim
indicator as I trim for my stabilized approach. I was just wondering if this
is a coincidence, or something that is more or less to be expected.


You would know the answer as I gave you the answer. Also read the
answers others gave you as they gave you the answers too.

WHY DID YOU ASK THE QUESTION IF YOU FELT MSFS SIMULATION WAS CORRECT
for the most part??? Could it be it there is a high chance it doesn't
reflect real flying??????
  #5  
Old April 22nd 10, 07:09 PM posted to rec.aviation.piloting,rec.aviation.student
Mxsmanic
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Posts: 9,169
Default Trim settings the same for takeoff and landing?

writes:

WHY DID YOU ASK THE QUESTION IF YOU FELT MSFS SIMULATION WAS CORRECT
for the most part???


A simulator simulates flight ... it does not explain it.
  #6  
Old April 21st 10, 10:12 AM posted to rec.aviation.piloting,rec.aviation.student
Mark
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Posts: 815
Default Trim settings the same for takeoff and landing?

On Apr 20, 11:55*pm, Mxsmanic wrote:
Lately I have made a more stringent attempt to trim the aircraft on approach
for landing, and I note that I often end up with a trim setting that is right
inside the takeoff trim setting. Is this a coincidence, or something that is
to be expected?


Because you fly out at 65 kts and land
at the same speed. The commonality is your airspeed.

---
Mark
  #7  
Old April 21st 10, 02:08 PM posted to rec.aviation.piloting,rec.aviation.student
Bob Moore
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Posts: 291
Default Trim settings the same for takeoff and landing?

Mark wrote

Because you fly out at 65 kts and land
at the same speed. The commonality is your airspeed.


Mark, you have failed to consider that in most lightplanes, the TO is
made with FLAPS UP and landings are generally made with FULL FLAPS.
Flaps require a really large trim adjustment, remember the GO-AROUND...
the large trim change required immediately after applying power and raising
the flaps? The difference between TO power and approach power also adds to
this large trim change in propellor driven aircraft.

Bob Moore
ATP CFII
PanAm (retired)
  #8  
Old April 21st 10, 03:32 PM posted to rec.aviation.piloting,rec.aviation.student
Mark
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Posts: 815
Default Trim settings the same for takeoff and landing?

On Apr 21, 9:08*am, Bob Moore wrote:
Mark wrote

Because you fly out at 65 kts and land
at the same speed. *The commonality is your airspeed.


Mark, you have failed to consider that in most lightplanes, the TO is
made with FLAPS UP and landings are generally made with FULL FLAPS.


True, that's all I've ever experienced.

Flaps require a really large trim adjustment, remember the GO-AROUND...
the large trim change required immediately after applying power and raising
the flaps?


Yes.

I'm also trimming on each leg including final.

The difference between TO power and approach power also adds to
this large trim change in propellor driven aircraft.


I certainly defer to your greater experience. It's speculation
that a coincidence of airspeed has his trim set at the same
place with take-off and landing, but...if he's just playing
computer games, then this is all probably irrelevant, as
simulation doesn't really translate to the real world.

Thanks.

---
Mark


Bob Moore
ATP CFII
PanAm (retired)


  #9  
Old April 22nd 10, 12:35 PM posted to rec.aviation.piloting,rec.aviation.student
Richard[_11_]
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Posts: 64
Default Trim settings the same for takeoff and landing?

On Apr 21, 9:32*am, Mark wrote:
Snippage
as
simulation doesn't really translate to the real world.

Thanks.

---
Mark

Bob Moore
ATP CFII
PanAm (retired)

To quote the bunyip:

BWAHAHAHAHAHAHA!!!

Yeah genius, tell that to Boeing, LockMart and nasa to name a few.

Idiot.

  #10  
Old April 22nd 10, 03:34 PM posted to rec.aviation.piloting,rec.aviation.student
Ari[_2_]
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Posts: 121
Default Trim settings the same for takeoff and landing?

On Thu, 22 Apr 2010 04:35:23 -0700 (PDT), Richard wrote:

On Apr 21, 9:32*am, Mark wrote:
Snippage
as
simulation doesn't really translate to the real world.

---
Mark


To quote the bunyip:

BWAHAHAHAHAHAHA!!!

Yeah genius, tell that to Boeing, LockMart and nasa to name a few.

Idiot.


Now, now , Richard, if you upset Mark(ie) he'll swear out
*DEATH THREATS* on you, change his name three dozen times, and TROLL
your ass off.

He's really quite the bi-polar nazz that boi is.

*snicker*
--
A fireside chat not with Ari!
http://tr.im/holj
Motto: Live To Spooge It!
 




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