118F - max RJ operating temerature

There's no point to using packs with ground air, it completely overpowers them. Run the recircs in low to get rid of some of the hot air underneath.

Sent from LV-426.
 
Ralgha said:
There's no point to using packs with ground air, it completely overpowers them. Run the recircs in low to get rid of some of the hot air underneath.

Sent from LV-426.
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the recircs, and especially the gasper fans will slow down the air coming from the external source. Adding the cold air from the packs makes things nicer...
 
launchpad said:
the recircs, and especially the gasper fans will slow down the air coming from the external source. Adding the cold air from the packs makes things nicer...
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The gaspers would sap it, the recircs don't, they just add air from under the floor.

Sent from LV-426.
 
Does the air conditioning (not the pressurization) have a maximum operating temperature, or differential, inside vs oat?
 
102F here this afternoon, new record high, humidity at 90%.... I got in the pool at 9AM just left
 
Sorry for the threadjack, but as I have been on a lot of RJ's of various flavors recently, it begs the question from an absolute ignoramus like myself.....

what is the difference between the ERJ and the CRJ? They look the same to me....I mean there are the larger and smaller models (like CRJ700 vs 200) but between ERJ and CRJ, is it the same airplane made by different manufacturers? Or are they completely different aircraft that just happen to very closely resemble one another? I guess I could google this, but I figured I'd ask the experts here

Oh yeah, and if they are completely different aircraft, how specifically do they differ?
 
///AMG said:
Sorry for the threadjack, but as I have been on a lot of RJ's of various flavors recently, it begs the question from an absolute ignoramus like myself.....

what is the difference between the ERJ and the CRJ? They look the same to me....I mean there are the larger and smaller models (like CRJ700 vs 200) but between ERJ and CRJ, is it the same airplane made by different manufacturers? Or are they completely different aircraft that just happen to very closely resemble one another? I guess I could google this, but I figured I'd ask the experts here

Oh yeah, and if they are completely different aircraft, how specifically do they differ?
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Embraer builds the ERJ. The ERJ comes in 37, 44 and 50 seat flavors. It's an overgrown Brasilia with a new wing, tail, and cockpit (and turbofans of course). It has "I forget" part commonality with the Brasilia. It has little to do with the 170/175/190/195.

Subjectively I consider the ERJ superior to the CRJ-200, in both looks and airplane-ness. (Brasilia superior too, of course...)

Gonzo has flown both RJ products, so you should really ask him. The rest of this post is my impression, since I haven't had firsthand Canadair time.

I haven't flown a CRJ but as I understand it from my Canuck-speaking coworkers the -200 is a POS, and the -700/-900 are great airplanes. The -200 is an overgrown Canadair Challenger--a nice airplane in its own right, but stretched into an inadequate airliner. They fixed the deficiencies on the -700/-900.
 
So in other words, they are 2 completely different aircraft, designed on 2 separate (and non-communicating) drawing boards that just happen to resemble one another? Or maybe they don't resemble one another and I just suck at distinguishing the differences....

Thanks for the info.....I think I have only ridden the 700/900 series CRJ, as that seems to be what US Air express/Mesa flies, at least on the routes I have been on.
 
///AMG said:
So in other words, they are 2 completely different aircraft, designed on 2 separate (and non-communicating) drawing boards that just happen to resemble one another? Or maybe they don't resemble one another and I just suck at distinguishing the differences....

Thanks for the info.....I think I have only ridden the 700/900 series CRJ, as that seems to be what US Air express/Mesa flies, at least on the routes I have been on.
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Same pile, different shovel. ;)
 
Autothrust Blue said:
Eh I've been quite pleased with the Embraer airplanes I've flown thus far. That said, I haven't flown any Boeings yet...
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wow, I can't read or remember what I have read I guess. Correction......Brazil builds their jets like they build their women :)

I haven't flown a true Boeing, but if they absorbed the minds of MacAir, then they can't be too bad today. I still think they are a head above Lockheed Martin today.
 
///AMG said:
So in other words, they are 2 completely different aircraft, designed on 2 separate (and non-communicating) drawing boards that just happen to resemble one another? Or maybe they don't resemble one another and I just suck at distinguishing the differences....

Thanks for the info.....I think I have only ridden the 700/900 series CRJ, as that seems to be what US Air express/Mesa flies, at least on the routes I have been on.
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I'm sorry but they don't resemble each other even slightly.
alpskwcrjdal.jpg

af-erj-135er-2.jpg
 
///AMG said:
Sorry for the threadjack, but as I have been on a lot of RJ's of various flavors recently, it begs the question from an absolute ignoramus like myself.....

what is the difference between the ERJ and the CRJ? They look the same to me....I mean there are the larger and smaller models (like CRJ700 vs 200) but between ERJ and CRJ, is it the same airplane made by different manufacturers? Or are they completely different aircraft that just happen to very closely resemble one another? I guess I could google this, but I figured I'd ask the experts here

Oh yeah, and if they are completely different aircraft, how specifically do they differ?
Click to expand...
Jtrain had a pretty good post about it a while ago.
jtrain609 said:
I have a friend that was on the -145 at Beagle and then went to Skywest and now obviously fly's the CRJ.

I asked him this same question one day, and basically laid it out like this:

CRJ-200 < EMB-145 < CRJ-700

The CRJ-200 is a piece. The EMB-145 has fantastic systems for the most part, that work for the most part, and it's an easy aircraft to fly. Personally I can't get used to the rams horn crap, but some guys love it. I'm in the minority of guys that don't like it.

The CRJ-700 has a real yoke and better descent planning capability. Descents in the EMB-145 are done using mental math, and the FMS isn't any help to you. The CRJ-700 has the banana on the MFD that makes things a little bit easier for ball parking in my opinion, but after flying the EMB-145 I'm always going to end up doing the math in my head no matter what (and you should probably do this too).

Some guys will compare climb rates between RJ's, and it's not really much of a comparison. The CRJ-700 has the best power to weight ratio of out all the RJ's out there, and will out climb the CRJ-200, CRJ-900 and the EMB-145. The CRJ-200 gets bogged down easily, and where the EMB-145 can climb at 1,200 FPM at FL300, it's doing it at Mach .65. The CRJ-200 will climb at 500 FPM at FL300, and does it at Mach .70 or something like that. You're not flying an MD-11 where you can climb at Mach .80 and 6,000 FPM, so you're really splitting hairs in performance land.

The CRJ-700 has leading edge devices, which I would imagine makes speed control a bit easier. That being said, I've never had a problem going down and slowing down in an EMB-145.

The EMB-145 is the loudest jet in the history of mankind. You WILL need an ANR headset (a lot of guys are using the new Bose headset) or something that you can plug your ears up with (Telex 5x5 with a custom earmold, clarity aloft, something like that).

I would personally go where you could get a line the quickest. Nothing else matters in my mind.

Oh and at Beagle, the CRJ-700 trips are bound to be better once you DO get a line, but still if you can get more senior on the -145 quicker, go there.

OH, and the Beagle -145's have that toy FMS. That thing is a piece of crap.
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///AMG said:
boom....there it is. I can see the difference there. I like the top one, whichever that is
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The top one is the Canadain buuilt CRJ... sorry if I came across as condescending, wasn't my intention.
A bit of trivia history, the CRJ started out life as the Lear jet design by Bill Lear, but was then sold and became the challenger, which then became the venerable CRJ200 after a stretch.
 
jwp_145 said:
The top one is the Canadain buuilt CRJ... sorry if I came across as condescending, wasn't my intention.
A bit of trivia history, the CRJ started out life as the Lear jet design by Bill Lear, but was then sold and became the challenger, which then became the venerable CRJ200 after a stretch.
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You didn't, no worries.....pictures are worth 1000 words as they say
 
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