higgi8f6

So did anyone else notice that the new permenant bid goes into effect 9 days before the start of its effective date? Talk about not having alot of time to find a crashpad? Good luck to those being recalled!

Oh, and nothing good in Ask Piedmont this week. Just our flying is shifting more to PHL than CLT and EWR finally got a PLD.

dashtrash300

Seriously!! After taking to SBY about the recall they said that we would not be able to bid until the first day of class (Monday the 24th). After talking with a union rep SBY called us and asked us to send PJ our updated permanent bid.

When will the bid be out?

runwayrat

Due May 14th by 5PM awards posted by May 21st at 5PM. They'll probably have it out sooner than the 21st though, I doubt it will take them a whole week to figure it out.

OnMyWay

For us dumb shinny jet drivers: why do the ground spoilers (?) come up on the runway before takeoff on the Dash?

rustypigeon

The spoilers come up when the flight/taxi switch is at flight, power levers are at flight idle and 3 weight on wheels.

During the taxi out to the runway, the flight taxi switch is moved to flight, so all three conditions are met. When the power is brought up for takeoff they go down.

If you forget to move the switch before takeoff, it will magnetically release itself to the flight mode when the power is brought up.

Phuz

Its only on the 100 model, and its because the 100 deploys those things automatically when you have weight on wheels and the power levers are back. We don't have a spoiler handle like shiny jets, so the system operates itself automatically. It simply asks itself if we are on the ground and if the power levers are below a certain point. If yes/yes then they deploy. The reason they aren't deployed at the gate is because we put the thing in 'taxi' mode which disables that logic and stows the spoilers.

When we line up on the runway we put the thing in 'flight' mode it detects weight on wheels with no power added so they deploy. As soon as we apply power for takeoff they retract. If we remove the power for a RTO or Landing they will deploy again.

We can't deploy them during flight to slow down like you can either, but man if we could the rate of descent we could pull off with a 100 would be insane.

theHub

The 200 and 300 models don't do it, but they brought it back on the Q400.

trent890

Technically, what you are seeing is the flight (roll) spoilers operating in the ground mode. The spoilers you see pop up just before takeoff are the inboard and outboard roll spoilers deploying because the flight/taxi switch has been moved to "flight" and the conditions mentioned previously have been met.

Once the power is increased for takeoff, and the weight is off the wheels, these same roll spoilers will enter the flight mode, to assist the ailerons in banking the aircraft for a turn. In the ground mode, all four spoilers will deploy simultanously. But for roll control in a turn, only one inboard or outboard roll spoiler will deploy, located on the wing on the inside of the turn, depending on if the Air Data Computer is reporting airspeed above or below 140 kts, respectively.

The -100 series Dash also has four ground spoiler panels located at the top center of the wing root, above the fuselage. The ground spoilers operate with the flight/taxi switch to reduce landing ground roll, but do not have a flight mode to operate during turns. A full compliment of operating flight and ground spoilers, coupled with a landing approach at flaps 35, gave the -100 impressive STOL capabilities during the initial type certification. However, given the costs of maintaining the ground spoilers and runway lengths available at modern airports, the ground spoilers have been deactivated on a large segment of the Dash 8 -100 fleet.

BSOuthisplace

Thanks Dash nerds. I think his question was answered.

dashtrash300

Because it was made in Canada, LOL, couldn't resist