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ERJ 170 / 190 Nose Up Attitude  
User currently offlinesandyb123 From UK - Scotland, joined Oct 2007, 1100 posts, RR: 0
Posted (4 years 6 months 2 weeks 4 days 23 hours ago) and read 3105 times:
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Hi guys,

I've still to fly the ERJ 170 / 190 (had hoped to last week on DJ but got swapped into a 737) but the interesting feature of this aircraft is it's nose up characteristic whilst on the ground.

Most aircraft types I have been on have a level or nose down characteristic whist on the ground, why is the ERJs different? Am I imagining it? Does this have any aerodynamic advantage / disadvantage on take off / landing (Angle of Attack etc).

Any info gratefully appreciated!!

Sandyb123


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5 replies: All unread, jump to last
 
User currently offlinepilotpip From United States of America, joined Sep 2003, 3150 posts, RR: 11
Reply 1, posted (4 years 6 months 2 weeks 4 days 23 hours ago) and read 3054 times:

The most interesting feature is the nose up charateristic? Not the FBW? Not the chevrons on the engine? Not the incredibly automated systems?

Just pulling your leg a bit. It really gives no discernable difference in flight characteristics. Just looks kind of frumpy. There's a slight nose up attitude on the ground, maybe a degree or two but I think it's more exaggerated looking from the outside than it really is. I think it's a combination of the mounting angle of the engine, the fa



DMI
User currently offlinegoldenshield From United States of America, joined Jan 2001, 6014 posts, RR: 14
Reply 2, posted (4 years 6 months 2 weeks 4 days 14 hours ago) and read 3002 times:

Quoting sandyb123 (Thread starter):
Most aircraft types I have been on have a level or nose down characteristic whist on the ground, why is the ERJs different?

Most tricycle geared aircraft sit nose up on the ground to some degree. It's harder to tell with bigger aircraft, but it's there. Take a look at the Concorde sometime.

The MD-80/90, CRJ-700/900, and 767-400 are one of the few aircraft that sit nose down, but this is to allow more room for when the aircraft rotates or flares, as they have long fuselages compared to their ground clearance.

[Edited 2010-02-12 06:35:49]


Two all beef patties, special sauce, lettuce, cheese, pickles, onions on a sesame seed bun.
User currently offlineloggat From United States of America, joined Feb 2000, 666 posts, RR: 0
Reply 3, posted (4 years 6 months 2 weeks 3 days 9 hours ago) and read 2819 times:

The 170 is nose up, and the 190 is nose down. The 190 is nose down because the landing gear are taller to allow for the larger fan on the engine.


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User currently offlineweb500sjc From United States of America, joined Sep 2009, 735 posts, RR: 0
Reply 4, posted (4 years 6 months 2 weeks 3 days 9 hours ago) and read 2814 times:
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I know that he a330 is noticably nose down, and I heard that the wheels are a bit spirng loaded to help with takeoff.
Is this because of the nose down attitude on the ground?



Boiler Up!
User currently offlineMSPNWA From United States of America, joined Apr 2009, 1936 posts, RR: 2
Reply 5, posted (4 years 6 months 2 weeks 3 days 8 hours ago) and read 2800 times:

Quoting sandyb123 (Thread starter):
Am I imagining it?

You're definitely not imagining things. My guess is that the E170 has the highest nose-up ground attitude of all common commercial jetliners. I like the looks of the E170 aside from that attitude. It just looks funky that way.


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