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Dash 8 MLG Question  
User currently offlineUAL Bagsmasher From United States of America, joined Sep 1999, 2148 posts, RR: 10
Posted (10 years 2 months 3 weeks 13 hours ago) and read 2510 times:

Took my first ride on a Dash 8 yesterday. Is it normal for the doors on the side of the MLG strut to have a great deal of "play" in them when the gear is extended? They were flapping around pretty badly as if the attachment fittings were worn. Is this normal for these aircraft?

5 replies: All unread, jump to last
 
User currently offlineEMBQA From United States of America, joined Oct 2003, 9364 posts, RR: 11
Reply 1, posted (10 years 2 months 3 weeks 12 hours ago) and read 2427 times:

A little... but not a lot. During the C-Checks we have done on Dash-8's almost all of the aircraft have required replacement of the MLG gear door linkage due to wear. It's a big door and takes quite a beating out there.


"It's not the size of the dog in the fight, but the size of the fight in the dog"
User currently offlineUAL Bagsmasher From United States of America, joined Sep 1999, 2148 posts, RR: 10
Reply 2, posted (10 years 2 months 3 weeks 7 hours ago) and read 2358 times:

Thanks for the quick reply. I had a feeling something wasn't quite right when the doors were just flapping around out there Big grin

User currently offlineLinemechqx From United States of America, joined May 2004, 77 posts, RR: 0
Reply 3, posted (10 years 2 months 2 weeks 6 days 22 hours ago) and read 2325 times:

Originally those fwd doors on the left side of the gear, were hydraulic, like the aft doors are. But this design created a lot of problems and (not sure when) they were redesigned as the mechanical "follow me" doors they are now. Which should give plenty of reason for the play and awkwardness that they have now.

Late
PC


User currently offline320tech From Turks and Caicos Islands, joined May 2004, 491 posts, RR: 5
Reply 4, posted (10 years 2 months 2 weeks 6 days 1 hour ago) and read 2259 times:

The Dash-8-100's that I used to work on still have hydraulically actuated landing gear doors. I'm not aware of any mod to change them. They did move a lot in the breeze, and we often changed the attaching hardware.


The primary function of the design engineer is to make things difficult for the manufacturer and impossible for the AME.
User currently offlineT prop From United States of America, joined Apr 2001, 1029 posts, RR: 1
Reply 5, posted (10 years 2 months 2 weeks 5 days 23 hours ago) and read 2255 times:

I've worked on both, and the later type, with the linkage connected to the drag strut, do end up having more play after a while.

I prefer the later type though because the actuators on the older ones eventualy end up leaking. Then you get to climb up there and play with skydrol...

T prop.


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