Do you need to trim to 11 degrees AOA for landing - ED Forums
 


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Old 01-24-2020, 03:39 AM   #1
SmoglessPanic
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Default Do you need to trim to 11 degrees AOA for landing

From what I understood from the early Wags F-16 videos it's not like the Hornet, you don't need to trim but use the stick to get to 11 degrees AOA.

I just played the VFR landing mission and I was instructed to hit nose trim up two to three times.

I am now confused, I learned how to do it without trimming (not that I get it right all the time) but now I am not sure which way is the correct way.

Last edited by SmoglessPanic; 01-24-2020 at 01:41 PM.
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Old 01-24-2020, 05:50 AM   #2
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I never trim the Viper for landing. I listened to Mover!
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Old 01-24-2020, 08:10 AM   #3
Delareon
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No Trim for the F-16.

use your Stick to put your nose up as you need use the Throttle to move the FPM to the position it needs to be.
If you are stabilized you should be able to take your hand away from the stick and just do minor corrections with the Throttle. Well without wind that is and you really should take your Hands back when you are close to touchdown
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Old 01-24-2020, 01:52 PM   #4
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Quote:
Originally Posted by Delareon View Post
No Trim for the F-16.

Thanks.

I learned to do the landing without trim, I was confused, I wasn't expecting the VFR training mission to tell me to add trim on the base leg.
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Old 01-25-2020, 02:12 AM   #5
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no trim...gear down, brakes out. Your AOA will happen with correct throttle control.
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Old 01-25-2020, 02:18 AM   #6
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I've never touched the pitch trim while airborne in the Viper.
As others have said, point the nose in a certain direction, hold it there (tell the computer "I want the nose here"), let go and it should be trimmed appropriately.
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Old 01-25-2020, 04:38 AM   #7
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I suggest trimming for the steady state approach conditions be that 11 or 13 AOA. The pure attitude-based FLCS laws start to get blended past something like 9 or 10 AOA so you do need trim for 11 or 13 AOA approach but not a lot.

In general in aviation you want to trim for state state conditions and not transient ones. You can of course hold any input manually with neutral or any other trim. There's no right or wrong way but I do recommend trimming for stable approach. You should be in the approach AOA conditions for a significant period of time and being trimmed for it will improve the quality of your approaches.
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Old 01-25-2020, 06:58 AM   #8
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Quote:
Originally Posted by Frederf View Post
I suggest trimming for the steady state approach conditions be that 11 or 13 AOA. The pure attitude-based FLCS laws start to get blended past something like 9 or 10 AOA so you do need trim for 11 or 13 AOA approach but not a lot.
+1
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Old 01-25-2020, 10:50 PM   #9
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Quote:
Originally Posted by Frederf View Post
I suggest trimming for the steady state approach conditions be that 11 or 13 AOA. The pure attitude-based FLCS laws start to get blended past something like 9 or 10 AOA so you do need trim for 11 or 13 AOA approach but not a lot.

In general in aviation you want to trim for state state conditions and not transient ones. You can of course hold any input manually with neutral or any other trim. There's no right or wrong way but I do recommend trimming for stable approach. You should be in the approach AOA conditions for a significant period of time and being trimmed for it will improve the quality of your approaches.
I’d agree for most other aircraft except the F-16.
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Old 01-26-2020, 07:03 AM   #10
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Quote:
Originally Posted by Deano87 View Post
I’d agree for most other aircraft except the F-16.
Why not for the F-16?
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