ssides
Posts: 3248
Joined: Fri Feb 09, 2001 12:57 am

Can RJs Do Powerbacks?

Sat Dec 13, 2003 8:19 am

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!!!!
 
BA
Posts: 10134
Joined: Fri May 19, 2000 11:06 am

RE: Can RJs Do Powerbacks?

Sat Dec 13, 2003 8:22 am

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
 
rockyracoon
Posts: 1010
Joined: Tue Oct 14, 2003 3:58 am

RE: Can RJs Do Powerbacks?

Sat Dec 13, 2003 8:44 am

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

Tim
 
SSRJ
Posts: 25
Joined: Fri Jun 23, 2000 6:28 am

RE: Can RJs Do Powerbacks?

Sat Dec 13, 2003 8:47 am

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
 
PSU.DTW.SCE
Posts: 6118
Joined: Mon Jan 28, 2002 11:45 am

RE: Can RJs Do Powerbacks?

Sat Dec 13, 2003 9:05 am

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.
 
capt078
Posts: 415
Joined: Tue Jul 22, 2003 9:52 am

RE: Can RJs Do Powerbacks?

Sat Dec 13, 2003 9:28 am

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.
 
CanadianNorth
Posts: 3133
Joined: Sat Aug 24, 2002 11:41 am

RE: Can RJs Do Powerbacks?

Sat Dec 13, 2003 9:48 am

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?
 
ssides
Posts: 3248
Joined: Fri Feb 09, 2001 12:57 am

RE: Can RJs Do Powerbacks?

Sat Dec 13, 2003 10:39 am

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!!!!
 
AirDude66
Posts: 180
Joined: Mon Nov 17, 2003 12:48 pm

RE: Can RJs Do Powerbacks?

Sat Dec 13, 2003 10:45 am

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.
 
flyCMH
Posts: 2148
Joined: Fri Jul 09, 1999 12:15 pm

RE: Can RJs Do Powerbacks?

Sat Dec 13, 2003 12:13 pm

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.
 
srbmod
Posts: 15446
Joined: Tue Mar 20, 2001 1:32 pm

RE: Can RJs Do Powerbacks?

Sat Dec 13, 2003 1:43 pm

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.
 
POSITIVE RATE
Posts: 2121
Joined: Sun Sep 16, 2001 11:31 am

RE: Can RJs Do Powerbacks?

Sat Dec 13, 2003 1:55 pm

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.
 
XFSUgimpLB41X
Posts: 3961
Joined: Fri Aug 25, 2000 1:18 am

RE: Can RJs Do Powerbacks?

Sat Dec 13, 2003 3:39 pm

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.