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Rough Field Deflector  
User currently offlineNicolaki From , joined Dec 1969, posts, RR:
Posted (14 years 5 months 1 week 4 days 20 hours ago) and read 1193 times:

Good evening guys,
This morning I was spotting at YUL, when this 737-200 lanuched himself. As he got airborne I noticed something I've never seen before on any aircraft. It's a flat metalic plate located aft of the front gear. I tried to look for an answer but the only thing I could find was that it is called a "Rough field deflector". Could somebody please enlight me on it's usage, the way it works, how is it stored when the gear is up?

Thanks a lot

Nicolas @ YUL

5 replies: All unread, jump to last
 
User currently offlineNicolaki From , joined Dec 1969, posts, RR:
Reply 1, posted (14 years 5 months 1 week 4 days 20 hours ago) and read 1076 times:

Oh here's a pic of it.


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Click here for full size photo!

Photo © Brian Hill



User currently offlineUAL_Bagsmasher From , joined Dec 1969, posts, RR:
Reply 2, posted (14 years 5 months 1 week 4 days 20 hours ago) and read 1075 times:

I think the deflector is there to prevent stones and other debris from being kicked up by the nosegear and entering the engines.

User currently offlineAvt007 From Canada, joined Jul 2000, 2132 posts, RR: 5
Reply 3, posted (14 years 5 months 1 week 4 days 13 hours ago) and read 1064 times:

It is part of a gravel kit, for operating off dirt strips. It protects the belly from rock damage. Note also below each engine intake is a mast, or probe. These blow bleed air ( compressed engine air) to deflect any debris from being ingested into the engine. First Air flies up north a lot. You'll also see this on some Canadian 737s, the old Canadian North machines. They also have a cargo door.

User currently offlineL-188 From United States of America, joined Jul 1999, 29840 posts, RR: 58
Reply 4, posted (14 years 5 months 1 week 4 days 9 hours ago) and read 1053 times:

Most of Alaska Airlines 737-200QC's are also equipted with the gravel kit...This is why Alaska will be getting rid of their MD-80' long before the -200's are gone.




OBAMA-WORST PRESIDENT EVER....Even SKOORB would be better.
User currently offlineAC183 From Canada, joined Jul 1999, 1532 posts, RR: 2
Reply 5, posted (14 years 5 months 1 week 4 days 6 hours ago) and read 1048 times:

It's for deflecting debris on gravel runways in the arctic, it keeps rocks out of the engine and off the fuselage. You see them on First Air aircraft as they're an arctic operator. They're also on, as noted, Canadi>n North's 737's and on several of Candi>n's 737's that used to fly the northern combi runs, or came from the mergers with Nordair, Transair, and from the aircraft used on Pacific Western's northern operations.

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