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Can RJs Do Powerbacks?  
User currently offlineSsides From United States of America, joined Feb 2001, 4059 posts, RR: 21
Posted (10 years 7 months 4 days 23 hours ago) and read 2242 times:

The recent thread about 717s and powerbacks made me think of another issue: can RJs such as the CRJ and ERJ do powerbacks as well? At ABI, which gets ERJs from CoEx and AAEagle, the jetways move a long, long way away from the aircraft. There are no tugs at ABI, so I'm wondering whether the jetways move such a long distance to allow the aircraft to turn around without powerbacking. Anyone know?


"Lose" is not spelled with two o's!!!!
12 replies: All unread, jump to last
 
User currently offlineBA From United States of America, joined May 2000, 11153 posts, RR: 59
Reply 1, posted (10 years 7 months 4 days 23 hours ago) and read 2224 times:

No they cannot. There engines are mounted too low to the ground (since RJ's are low themselves) that they were not certified for pushback for the same reason why 737s, A320s, etc. are not certified for pushbacks. The issue is that they kick up a lot of debris which can injure ground crew and cause other damage, even to the plane itself.

Not really an issue for aircraft like the DC-9, MD-80, Fokker F100 because the engines are mounted quite high.

Regards



"Generosity is giving more than you can, and pride is taking less than you need." - Khalil Gibran
User currently offlineRockyRacoon From United States of America, joined Oct 2003, 958 posts, RR: 0
Reply 2, posted (10 years 7 months 4 days 23 hours ago) and read 2163 times:

B757-200s and B737-200 can do powerbacks.

Tim


User currently offlineSSRJ From United States of America, joined Jun 2000, 46 posts, RR: 0
Reply 3, posted (10 years 7 months 4 days 23 hours ago) and read 2150 times:

RJ's thrust reversers are pretty weak.

You'd have to really get the engines revved up to do much of anything and it's just not worth it.

-RM



When all else fails, read the directions. Else then, get the hammer
User currently offlinePSU.DTW.SCE From United States of America, joined Jan 2002, 7505 posts, RR: 28
Reply 4, posted (10 years 7 months 4 days 22 hours ago) and read 2084 times:

Yes, many outstations, and even some gates at more congested airports are designed to alliviate the need for a pushback tug or powerbacks. For gates without jetways its easy. To use a jetway, and simply "spin-off" the gate, you need a long jetway that can rotate out of the aicraft footprint. Where there is adequate space a smaller stations to eliminate the need for tugs, gates were designed in this fashion.

User currently offlineCapt078 From United States of America, joined Jul 2003, 421 posts, RR: 1
Reply 5, posted (10 years 7 months 4 days 22 hours ago) and read 2021 times:

while i do not know about the canadair regional jet (crj), i have been on an embraer regional jet (erj-135) that did a pushback. it was a flight from grand rapids to cleveland on continental express. the captain got on the intercom and announced to the passengers that we would be doing the pushback because of ground support problems, and that no one should be worried by the added engine sounds. i will say that it was awesome...much more exciting than on a dc-9 or 717.

User currently offlineCanadianNorth From Canada, joined Aug 2002, 3389 posts, RR: 9
Reply 6, posted (10 years 7 months 4 days 22 hours ago) and read 1943 times:

ere at YXY we only have the one jetway, and trust me it swings way way way way back, plus it streches out alot too, so we never use tugs or powerbacks... if you know what yer doing, you can get a 763 to just "spin off". The 732s spin off daily here with lotsa room still.


CanadianNorth



What could possibly go wrong?
User currently offlineSsides From United States of America, joined Feb 2001, 4059 posts, RR: 21
Reply 7, posted (10 years 7 months 4 days 21 hours ago) and read 1880 times:

Thanks for the info -- the spin-off is quite nice to see, but the bell that rings while the jetway is moving sure gets annoying after a while!


"Lose" is not spelled with two o's!!!!
User currently offlineAirdude66 From United States of America, joined Nov 2003, 187 posts, RR: 0
Reply 8, posted (10 years 7 months 4 days 21 hours ago) and read 1872 times:

Yes they can do power backs. Most turbine aircraft can. Whether it is acceptable by the carrier or approved for the aircraft type is another issue. Even the Saab can feather the props to reverse - it is not safe for ground crews though.

User currently offlineFlyCMH From United States of America, joined Jul 1999, 2277 posts, RR: 10
Reply 9, posted (10 years 7 months 4 days 19 hours ago) and read 1834 times:

It's not uncommon for Chautauqua ERJs to powerback from their gate on their way to the maintenance facility here. I don't believe they do it with pax onboard though.

User currently offlineSrbmod From , joined Dec 1969, posts, RR:
Reply 10, posted (10 years 7 months 4 days 18 hours ago) and read 1790 times:

Powerbacks are most effective on engines that use the bucket type TR shell, as they concentrate more of the trust into one spot. The cascade and petal types, like those on a CRJ and the 737 (300 series and up) spread the thrust out more evenly, so you don't get as powerful of thrust reverse as you do on an engine with the bucket type reversers.

User currently offlinePositive rate From Australia, joined Sep 2001, 2143 posts, RR: 1
Reply 11, posted (10 years 7 months 4 days 18 hours ago) and read 1773 times:

You'd think that given the nature and purpose of the RJ- which is the ability to operate from short, unselaed strips, underdeveloped airports etc. they should be the perfect candidate for powerbacks since tugs might not be available at regional airports.

User currently offlineXFSUgimpLB41X From United States of America, joined Aug 2000, 4189 posts, RR: 37
Reply 12, posted (10 years 7 months 4 days 16 hours ago) and read 1702 times:

Yes....but we don't do them at any airport... go figure. I wouldn't be suprised if you see a CRJ power back sometime in the near future, though.


Chicks dig winglets.
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