DASH 8 400 Spoilers extended before T/O

[14 loop]

An illustration of spoilers deployed before T/O power selection can be seen below.

[Capt Claret]

Simply because it's easier to keep a wing down than it is to get it back down if it's lifted. That's why.

In that case, we should keep the flaps down, 'cause it's easier to land with them down if we have a hydraulic (or electric) drive failure. Similarly the gear pins should be left in so we don't have to worry about getting the gear down.

ps. In 20 years I've never had any trouble getting a wing down.

[Chesty Morgan]

ps. In 20 years I've never had any trouble getting a wing down.

I have! Not a very comfortable situation. Admmitedly not on the Dash, but it's still at the back of my mind each time I go flying.

It's just as easy to land without flaps as it is to land with them. If you fly at the right speed and you've got a long enough runway. Similarly the gear has alternate extension system(s)

[Alpine Flyer]

Originally Posted by 14 loop

An illustration of spoilers deployed before T/O power selection can be seen below.

Also note the nice and shiny underside of the spoilers (optional chrome package?) reflecting the innards of the wing below

We did a "spoilers in" callout during the T/O roll for the Dash 7, Dash 8-100 and Dash 8-400 (for some reason the spoilers don't extend on the -300). I can't remember a callout on landing but the difference in deceleration between the -100 and -300 was noticeable.

The system is simple and effective and needs less logic than a system where the spoilers are armed but stay in during take-off unless the TO is aborted.