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Dial-A-Flap?  
User currently offlineVikkyvik From United States of America, joined Jul 2003, 10335 posts, RR: 26
Posted (10 years 5 months 4 weeks 20 hours ago) and read 4185 times:

In the following picture on an MD-11, on the flap handle, there is a portion of it labeled "Dial-A-Flap," and there is what looks to be a corresponding dial-a-flap handle next to the flap handle. Anyone know what "Dial-A-Flap" is?


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Photo © Anssi Lisko



Thanks.

~Vik


How can I be an admiral without my cap??!
7 replies: All unread, jump to last
 
User currently offlineMD11Engineer From Germany, joined Oct 2003, 14139 posts, RR: 63
Reply 1, posted (10 years 5 months 4 weeks 19 hours ago) and read 4135 times:

The "Dial-a-flap" system is a simple mechanism which moves the flap lever detent between 10° and 28° by turning the wheel. Afterwards you set the flap lever into the selected position. This allows for almost unlimited flap extensions in the take-off range depending on aircraft weight and runway conditions.
Don´t try to move the flap lever by turning the wheel, because you might break the mechanism.
The index with the dial-a-flap inscription shows the position of the detent in the center pedestal. Landing setting is normally 15°.

Jan


User currently offlineRendezvous From New Zealand, joined May 2001, 521 posts, RR: 0
Reply 2, posted (10 years 5 months 4 weeks 19 hours ago) and read 4115 times:

Good design there!

In this forum you can learn things you never knew you never knew!


User currently offlineMeister808 From United States of America, joined Jan 2000, 973 posts, RR: 1
Reply 3, posted (10 years 5 months 4 weeks 13 hours ago) and read 4012 times:

That is pretty cheeky.

Anyone else use that design?

-Meister



Twin Cessna 812 Victor, Minneapolis Center, we observe your operation in the immediate vicinity of extreme precipitation
User currently offlineMD11Engineer From Germany, joined Oct 2003, 14139 posts, RR: 63
Reply 4, posted (10 years 5 months 3 weeks 6 days 22 hours ago) and read 3914 times:

I think it was used on DC-10s as well.

Jan


User currently offlineRydawg82 From United States of America, joined Sep 2001, 868 posts, RR: 8
Reply 5, posted (10 years 5 months 3 weeks 6 days 19 hours ago) and read 3888 times:

And the MD80 uses it as well...
-R



You can take the pup out of Alaska, but you can't take the Alaska out of the pup.
User currently offlineSlamClick From United States of America, joined Nov 2003, 10062 posts, RR: 68
Reply 6, posted (10 years 5 months 3 weeks 6 days 19 hours ago) and read 3873 times:

My small exposure to it: The performance tables for any given runway might have one page for Flaps 15, with allowable takeoff weights at given temperatures and another at "Optimum Flap" which would give the MGTOW at temperature and the flap setting to be used.

Similar for the database for computer generated takeoff data. Any current MD-80 pilots confirm that?







Happiness is not seeing another trite Ste. Maarten photo all week long.
User currently offlineCorsair2 From United States of America, joined Jan 2001, 248 posts, RR: 0
Reply 7, posted (10 years 5 months 3 weeks 4 days 20 hours ago) and read 3674 times:

The 717 has the Dial-A-Flap. Helps peformance at hot and high fields.


"We have clearance Clarence. Roger, Roger. What's our vector Victor?"
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