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J31; Flaps And Spoilers?  
User currently offlineJeDa From Sweden, joined Apr 2000, 52 posts, RR: 0
Posted (11 years 3 months 4 weeks 20 hours ago) and read 1832 times:

Hi Fellows!

I am going on a trip in a Jetstream 31 and I wonder if you could tell me about how the flaps, and spoilers are used. Or maybe this little bird doesn´t have any?
How about the MTOW?
There only seats for 19 passengers.
Please tell me, I am only familiar with B747, B777 and A330 etc...

Best regards,
JeDa in GOT

5 replies: All unread, jump to last
 
User currently offlineAJ From Australia, joined Nov 1999, 2391 posts, RR: 24
Reply 1, posted (11 years 3 months 4 weeks 17 hours ago) and read 1791 times:

From memory the J31 has single slotted fowler flaps of quite a large area. No spoilers are fitted as flight idle on those big four bladed props makes the disks into big spoilers!

User currently offlineJ32driver From United States of America, joined May 2000, 399 posts, RR: 1
Reply 2, posted (11 years 3 months 3 weeks 6 days 15 hours ago) and read 1714 times:

Watch for the lift dump on landing. WHen the crew brings the engines into reverse, the flaps dump to like 85 degrees! Fun to watch.

User currently offlineAJ From Australia, joined Nov 1999, 2391 posts, RR: 24
Reply 3, posted (11 years 3 months 3 weeks 6 days 14 hours ago) and read 1699 times:

The flaps drop with no hydraulic pressure, so you can see the full extension:

View Large View Medium
Click here for bigger photo!

Photo © Danny H. Masson



User currently offlineJ32driver From United States of America, joined May 2000, 399 posts, RR: 1
Reply 4, posted (11 years 3 months 3 weeks 6 days 3 hours ago) and read 1685 times:

Yep, that picture shows the flap "dump" position. Heres something of interest. If you spin the prop by hand, the prop drives the hudraulic pump and gives just enough pressure to move the flaps back up. Takes lots of revolutions though.... Maybe 20 seconds of hand propping the thing. That was a FUN airplane.

User currently offlineOlympic A-340 From United States of America, joined Apr 2000, 780 posts, RR: 10
Reply 5, posted (11 years 3 months 2 weeks 5 days 22 hours ago) and read 1590 times:

I just finished a trip with American Connection to Lafayette on the J-31. It was an amazing plane. Request the first row as there is no cockpit door and you can see all the procedures and such. Most interesting indeed!

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