Steering on Takeoff
02-05-2008 | 09:45 PM
#1
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From: C172, PA28, PA44...Right
Steering on Takeoff
Hey Guys/Gals,
Somehow, my suite mate and myself got into talking about takeoffs in transport category jets. He insists that the tiller is used for the first 80 kts on the takeoff roll because there is no rudder steering tied into the nose gear and it's not effective until 80 kts and that's the whole point of the 80 kts callout. Just curious if this is true because it doesn't sound very logical.
Somehow, my suite mate and myself got into talking about takeoffs in transport category jets. He insists that the tiller is used for the first 80 kts on the takeoff roll because there is no rudder steering tied into the nose gear and it's not effective until 80 kts and that's the whole point of the 80 kts callout. Just curious if this is true because it doesn't sound very logical.
02-06-2008 | 12:22 AM
#3
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From: Spartan
Hey Guys/Gals,
Somehow, my suite mate and myself got into talking about takeoffs in transport category jets. He insists that the tiller is used for the first 80 kts on the takeoff roll because there is no rudder steering tied into the nose gear and it's not effective until 80 kts and that's the whole point of the 80 kts callout. Just curious if this is true because it doesn't sound very logical.
Somehow, my suite mate and myself got into talking about takeoffs in transport category jets. He insists that the tiller is used for the first 80 kts on the takeoff roll because there is no rudder steering tied into the nose gear and it's not effective until 80 kts and that's the whole point of the 80 kts callout. Just curious if this is true because it doesn't sound very logical.
02-06-2008 | 06:25 AM
#4
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From: B737/FO
Hey Guys/Gals,
Somehow, my suite mate and myself got into talking about takeoffs in transport category jets. He insists that the tiller is used for the first 80 kts on the takeoff roll because there is no rudder steering tied into the nose gear and it's not effective until 80 kts and that's the whole point of the 80 kts callout. Just curious if this is true because it doesn't sound very logical.
Somehow, my suite mate and myself got into talking about takeoffs in transport category jets. He insists that the tiller is used for the first 80 kts on the takeoff roll because there is no rudder steering tied into the nose gear and it's not effective until 80 kts and that's the whole point of the 80 kts callout. Just curious if this is true because it doesn't sound very logical.
02-06-2008 | 07:32 AM
#5
ULTP-Ultra Low Tier Pilot
Joined: Dec 2007
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It also serves as a way to x-check ASI with other side
02-06-2008 | 07:56 AM
#6
Flying Farmer
Joined: Jul 2006
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From: Turbo-props' and John Deere's
727 sim I was in during college had an 80kt call-out, and but it was, as mentioned above, is a cross-check speed. The rudders do tie into the nose-wheel steering, but it is limited in comparison to what the tiller does(not sure angle in degree's).
02-06-2008 | 08:04 AM
#7
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From: C-130
My only experience with a nose wheel tiller was on the P-3 Orion, you would have your hand on it at the beginning of the T/O roll until rudder authority was gained, 40-50 kts or so IIRC. On the landing rollout, I think we had a standard of 65 kts or less before you were "allowed" to put your hand back on it. You could pop a nose tire very easy with the tiller.
02-06-2008 | 08:43 AM
#8
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On the Q400 the pedals have up to 8 degrees of nosewheel stearing so the tiller is not used during takeoff or landing until it is time to make the turnoff or in the case of a high speed you can hold off on the tiller until stopped. But its the CAs plane so he is in the tiller when he feels like it and takes the controls from me.
From what I understand the 80knots reason is for crosschecking the instruments as well as pilot incapacitation...if you say 80kts and they say nothing maybe the bloke is dead and you should consider the brakes.
From what I understand the 80knots reason is for crosschecking the instruments as well as pilot incapacitation...if you say 80kts and they say nothing maybe the bloke is dead and you should consider the brakes.
02-06-2008 | 09:05 AM
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From: Spartan
On the Q400 the pedals have up to 8 degrees of nosewheel stearing so the tiller is not used during takeoff or landing until it is time to make the turnoff or in the case of a high speed you can hold off on the tiller until stopped. But its the CAs plane so he is in the tiller when he feels like it and takes the controls from me.
From what I understand the 80knots reason is for crosschecking the instruments as well as pilot incapacitation...if you say 80kts and they say nothing maybe the bloke is dead and you should consider the brakes.
From what I understand the 80knots reason is for crosschecking the instruments as well as pilot incapacitation...if you say 80kts and they say nothing maybe the bloke is dead and you should consider the brakes.
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