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McTriggerhappy
05-17-2004, 11:15 AM
why (if ever) do you need to lock the tail wheel

-mctriggerhappy dude

McTriggerhappy
05-17-2004, 11:15 AM
why (if ever) do you need to lock the tail wheel

-mctriggerhappy dude

Arm_slinger
05-17-2004, 11:19 AM
I think it might be to over come the engine torque, and to maintain a constant direction rather than slew over the runway

242Sqn_Kye-
Pilot of 242 Squadron

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McTriggerhappy
05-17-2004, 11:20 AM
just for landing, right?

lil_labbit
05-17-2004, 11:58 AM
Otherwise it would keep dangling there, influencing your airflow and thus flight behaviour...

Don't know if it is implemented anymore though http://ubbxforums.ubi.com/infopop/emoticons/icon_wink.gif

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IL2-chuter
05-17-2004, 12:10 PM
It helps keep the plane straight when you go to take-off power. You hold the stick back to plant the tailwheel and add opposite rudder to counter propwash and you should go straight down runway. Since its just about impossibble to groundloop in the game (just the opposite of RL) it doesn't make much difference, though.



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PBNA-Boosher
05-17-2004, 12:14 PM
There are a number of reasons to lock the tailwheel. One of the premier ones being speed. If your tailwheel is not parallel to the wind, it will cause a lot of drag, therefore slowing your plane's top speed. However, locking the tailwheel has some added benefits. It helps you stay straight on the runway, though torque can usually overcome this. It also keeps you from scratching the bottom of your plane on the ground.

ALWAYS KEEP THE TAILWHEEL UNLOCKED ON LANDING!

This will allow you to have better control on the runway as your're desperately trying to slow down. There is a very good chance you can skid if the tailwheel's locked.

heywooood
05-17-2004, 01:23 PM
Lock tailwheel is for takeoff only -

To give directional stability until the tail is flying.. rudder authority is the key to directional control on takeoff so the tailwheel isn't a big deal on lighter airplanes. I only use the tailwheel lock on Bf110's and He111's

The fighters I just push the stick forward with the throttle until the tail comes up.. usually right away, and then settle it back to level attitude until the mains float, slight back pressure and up you go.

Jagdgeschwader2
05-17-2004, 01:48 PM
<BLOCKQUOTE class="ip-ubbcode-quote"><font size="-1">quote:</font><HR>Originally posted by heywooood:
Lock tailwheel is for takeoff only -

To give directional stability until the tail is flying.. rudder authority is the key to directional control on takeoff so the tailwheel isn't a big deal on lighter airplanes. I only use the tailwheel lock on Bf110's and He111's

The fighters I just push the stick forward with the throttle until the tail comes up.. usually right away, and then settle it back to level attitude until the mains float, slight back pressure and up you go.<HR></BLOCKQUOTE>

Beat me too it Heywooood. By the way the P-51 had a steerable tail wheel. You would push the stick full forward to unlock the tailwheel. We really don't need this in FB though since most of us don't spend much time on the ground. It was however great for the pilots in real life. When we first got the P-51 I tried this just to see lol. I was watching a trainning film on the P-47 and before take off the pilot said it was very important to make sure the tailwheel was locked
as you did not want it to go into free caster.
You would probably end up doing a ground loop with it unlocked in real life.

Tail wheel steering/locking systems- A steerable type system uses an interconnect from the rudder pedals to the tailwheel steering system. This allows the pilot to steer the aircraft by use of the rudder pedals. Full forward stick movement unlocks this system. When unlocked the tailwheel becomes full swivel and steering is accomplished by differential braking.

A speck of dirt on your windscreen could turn into an enemy fighter in the time it took to look round and back again. A little smear on your goggles might hide the plane that was coming in to kill you.
Derek Robinson
From the book Piece of Cake.

[This message was edited by Jagdgeschwader2 on Mon May 17 2004 at 12:56 PM.]

[This message was edited by Jagdgeschwader2 on Mon May 17 2004 at 12:58 PM.]

heywooood
05-17-2004, 02:36 PM
Jg2 -

If you look closely at the panel in the P51 you will see the placard instructing the pilot about pushing the stick full forward to unlock the tailwheel..so I dont blame you for trying it... In r/l it was not an option because of the incredible torque at takeoff power. And as you probably know, the pilots still had to 'stand' on the left pedal to keep it straight
even with the tailwheel locked.

Jagdgeschwader2
05-17-2004, 02:44 PM
Yep for take off it was of no use. It just made it easier to steer around the taxi ways.
Since the FB design team pays close attention to details I half expected it to function as advertised. Heck the tail wheel doesn't move at all come to think of it.

A speck of dirt on your windscreen could turn into an enemy fighter in the time it took to look round and back again. A little smear on your goggles might hide the plane that was coming in to kill you.
Derek Robinson
From the book Piece of Cake.

SithSpeeder
05-17-2004, 03:20 PM
Other members in the community have told me (seriously) that it can make a 5 kph difference in speed due to drag if it is unlocked. Haven't verified it myself, though.

* _54th_Speeder *

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heywooood
05-17-2004, 03:21 PM
ah well JG - so many details take up so much code http://ubbxforums.ubi.com/images/smiley/16x16_smiley-wink.gif

As far as drag coefficient on an unlocked tailwheel vs locked?.. I have not noticed.

It should be negligeable though.. so slight as to be irrelevant... now retractible vs exposed tailwheel is a different deal altogether obviously.

[This message was edited by heywooood on Mon May 17 2004 at 02:39 PM.]

JimRockford
05-18-2004, 10:07 AM
Thoe only time locking the tailwheel has really helped me was in lining up He-111 bombers for take off. Locking the tail wheel keeps them from spinning around as you turn to line up.
Other than that on single engine planes it might make a small difference but its never been enough for me to really notice.

nixon-fiend.
05-18-2004, 11:47 AM
<BLOCKQUOTE class="ip-ubbcode-quote"><font size="-1">quote:</font><HR>Originally posted by PBNA-Boosher:
ALWAYS KEEP THE TAILWHEEL UNLOCKED ON LANDING!
<HR></BLOCKQUOTE>

Er.. You quite sure about that?

Spitfires had a non-locking tailwheel (it locks in FB though http://ubbxforums.ubi.com/infopop/emoticons/icon_wink.gif) And I've always read of pilots marveling at how the plane DIDN'T drop a wing or make the pilot stomp on the rudders to keep the thing undercontrol.

I think locking the t/wheel on landing was the idea.

EDIT: Although now I'm not so sure. Bah! I hate that.

TugZooey
05-18-2004, 02:42 PM
Sorry to hijack this thread, but...

I should be locking the tail wheel on take-off? or I should be on landing?

I can be pretty dense sometimes http://ubbxforums.ubi.com/images/smiley/35.gif but I'm getting confilicting messages here.

I always had trouble keeping the 190 straight on take-off, but never have trouble with say the p-38 or P-47 (I have limited flying time with the allied craft). This is without ever locking the tail wheel except when I'm lined up and I'm afraid I might ram the plane in front of me.



Thanks!

heywooood
05-18-2004, 08:27 PM
Tug -

Try both for yourself ... either way even if you crash there will be no death or damage.

But my understanding is locked on T/o only -not on landing because as soon as the tail is down the rudder has less directional authority.. it is about differential braking..
and if the tailwheel is locked - you cant steer the plane.

ELEM
05-19-2004, 02:32 AM
<BLOCKQUOTE class="ip-ubbcode-quote"><font size="-1">quote:</font><HR>Originally posted by PBNA-Boosher:

ALWAYS KEEP THE TAILWHEEL UNLOCKED ON LANDING!

<HR></BLOCKQUOTE>

That should read:-

NEVER LOCK THE TAILWHEEL FOR LANDING

I wouldn't join any club that would have ME as member!

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