What’s a good trim at landing

[ruddy122]

I’ve noticed I put too much trim or not enough on landing

 

Is there a ball park setting and then fine tune?

 

 

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[Hulkbust44]

Fly onspeed AoA. Trim means nothing. You want 8.1° alpha and the orange donut to the right of your HUD. This is very important in the Hornet and basically the only way you land.

Mobius708

[ruddy122]

I get the AOA but can’t keep it for long any tips


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[Hulkbust44]

I get the AOA but can’t keep it for long any tips


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Don't touch the stick. Trim to onspeed and only use the stick for lateral adjustments.

Mobius708

[ruddy122]

The nose either goes up or down never stays where I want it for hands free pitch

I’m thinking throttle control


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[Scotch75]

You trim to be on-speed in level flight, which is a function of the aircraft weight and angle of attack. Therefore, different landing weights will have different trim to always have a constant angle of attack (on-speed). This is achieved by trimming the velocity vector to be in the middle of the landing bracket, which gives you optimum aoa in landing configuration. You then control your rate of descent with power (throttle up/down). Hope that helps.

Cheers!



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[ruddy122]

I think I’m fighting the FBW

Need to settle down and not fight it


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Thanks I’ll try the tips tonight


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[Scotch75]

You'll never get hands-free trim. Your throttle control needs to be quite small movements up and down to achieve an "average" power, the Hornet's engines are quite responsive. You should be able to find in cockpit youtube videos of us navy Hornets making approaches to the carrier. The pilots are constantly moving the throttles up and down. The same method is applied to air-to-air refuelling.


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[ruddy122]

Cool I’ll try that

In heavies like the KC-10 you leave throttle alone once set and trim for hands free


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[ruddy122]

I got some negative training going on

Fix up and down first before tackling left and right


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[oldpop]

Make sure you have a "dead zone" as per "Chuck's" guide set up

[Dragon1-1]

Also, contrary to what someone said, DCS Hornet's throttle is currently not very responsive. You really need to be a few seconds ahead of the aircraft.

 

The real Hornet is different, the response is supposedly nearly immediate.

[ruddy122]

For all you valued viewers it’s a deadzone of 4 and a curvature of 15


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Remind me of real life AR with the throttles

Put the power where you need it to be and wait a potato

Don’t add more throttles unless you want to be under the tanker


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[Steel Jaw]

I find Hornet trim very twitchy at low speeds.

[ruddy122]

That’s what I noticed too the DCS Hornet likes to go fast more stable

If the tips don’t help with full flaps going to try half flaps


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[WobblyFlops]

3 hours ago, ruddy122 said:

That’s what I noticed too the DCS Hornet likes to go fast more stable

If you still have issues with this, can you please upload a recording of this issue with the control overlay enabled? It'd much easier to give additional tips. 

[evilnate]

In my experience I adjust trim to get on speed with gears down, flaps full, and hook. If my weight doesn’t change, I never need to adjust trim anymore. Adjust power to keep velocity vector where I need it and roll to turn.

 

A good practice drill is getting on speed, hold 1000 ft. AGL, and do 180 degree turns with 30 degrees angle of bank and then make wings level again. See if you can maintain 1000 ft. at all times.

[ruddy122]

I think I’m doing too much at the same time getting down, slowing down, getting dirty too fast

Try to be a more methodical so the LSO in super carrier doesn’t yell at me


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[SharpeXB]

7 hours ago, oldpop said:

Make sure you have a "dead zone" as per "Chuck's" guide set up

Its all personal taste but I think a dead zone is only necessary for a broken (spiking or drifting) controller. With a dead zone you’ll move the stick.. nothing… then get some surprise reaction, like sticky axis behavior. It’s better to feel control through the entire range of input IMO

Edited July 20, 2021 by SharpeXB

[ruddy122]

I know you need a deadzone of 1 for the autopilot to work

I might reduce my deadzone in roll and pitch less than 4


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I pio cause I maybe have a deadzone issue


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[Hulkbust44]

I know you need a deadzone of 1 for the autopilot to work

I might reduce my deadzone in roll and pitch less than 4


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I pio cause I maybe have a deadzone issue


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Not true at all. You just can't have an extreme bank or dive/climb initially. Or excessive inputs on the stick. (half throw)

Mobius708

[randomTOTEN]

Why don't you post a short track so we can see what's going on?

[rob10]

2 hours ago, ruddy122 said:

I know you need a deadzone of 1 for the autopilot to work

That is not true depending what joystick base you're using.  I've never had an issue with activating AP with my WarBrd base and both pitch and roll deadzones are zero.  I personally don't like any curves on it either.

[Nealius]

11 hours ago, ruddy122 said:

 

I’ve noticed I put too much trim or not enough on landing

 

Is there a ball park setting and then fine tune?

 

 

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In my experience, horizontal stab trim when on-speed has consistently been 11° NU. That ballparks me around slightly fast or slightly slow. Then I fine-tune the trim to get the sweet spot, since there is still quite a bit of trim play between each degree of stab deflection. 

 

"8.1° AoA" gets thrown around a lot when people ask about landing trim, and that is correct, but not applicable to what is being asked. 8.1/on-speed doesn't happen until after trimming. Landing trim questions are asking about the trimming process itself, before you arrive at 8.1/on-speed. On that note, has the AoA indication on the FCS (I think?) page been updated to work? Last I flew the Hornet it was pegged at 00.0° AoA, so there was no way to see your actual AoA anyway.

Edited July 21, 2021 by Nealius

[Bunny Clark]

11 hours ago, ruddy122 said:

I get the AOA but can’t keep it for long any tips

In landing configuration, the Hornet's FCS holds AoA, and you set what AoS is held with the trim switch. So long as you're not making any pitch inputs, you will stay glued to the commanded AoA without effort. A simple tip: the trim hat will control the direction the AoA bracket moves - so if the TVV is below the AoA bracket on the HUD, trim hat down to bring the jet to on-speed. You should be able to maintain on-speed level flight with your hand off the stick and just manipulating the throttle to control decent rate.