crj 700 technical questions

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04-21-2015, 05:00 PM

#21

Navmode

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Joined APC: Aug 2013

Posts: 774

Quote:

Originally Posted by PerfInit

High Power Sked button is the only way to get Maximum Continuous Thrust MCT on BOTH engines at the same time. It's an EASA thing.. As previous posters have stated, it is much easier to just firewall the thrust levers to the stops.

AC Power meter is NOT a TRU. It is a Meter that indicates AC Voltage, Frequency and/or Current. On the 700, EICAS Electrical Page 1 of 2 will give you some of that information.

He said power center, not power meter. AC power is made from cd power by the TRU's but it almost sounds like it's asking about the AC buses.

04-21-2015, 05:24 PM

#22

Nodaysoff

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Posts: 26

Quote:

Originally Posted by Navmode

He said power center, not power meter. AC power is made from cd power by the TRU's but it almost sounds like it's asking about the AC buses.

Not exactly, DC is produced by the TRUs from AC.

The generators on the CRJ are AC, some systems require DC hence the need for the TRUs.

04-21-2015, 05:33 PM

#23

Captain Tony

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Posts: 1,951

I am now dumber after reading this.

04-21-2015, 05:51 PM

#24

galaxy flyer

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Position: Baja Vermont

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Quote:

Originally Posted by Navmode

He said power center, not power meter. AC power is made from cd power by the TRU's but it almost sounds like it's asking about the AC buses.

Do you really believe AC power is generated by the TRUs? If so, please let me know your line, so I can avoid it.

GF

04-21-2015, 06:15 PM

#25

Et tu Bluto

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Joined APC: Dec 2012

Position: A320 FO

Posts: 63

First rule for being a jet pilot: if its red or covered with dust, don't touch it. Always worked for me!

04-21-2015, 06:47 PM

#26

Jet87

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Position: OO RJ FO

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Quote:

Originally Posted by FaceBiter

I heard soaking is fun.

Bro, you always get me to LOL!!

04-23-2015, 02:49 AM

#27

Banjaxed

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Joined APC: Feb 2014

Position: CRJ7/9

Posts: 23

I believe British Airways did verify the fact that very cold fuel becomes "waxy"!

Last edited by Banjaxed; 04-23-2015 at 02:51 AM. Reason: Context

04-23-2015, 04:56 AM

#28

Ramprat

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Joined APC: Jun 2007

Position: East coast

Posts: 380

The high power switch works great when you have to make that commute! Thing climbs like a beast. Just don't tell anyone!

04-23-2015, 05:42 AM

#29

FaceBiten

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Posts: 310

Quote:

Originally Posted by Navmode

He said power center, not power meter. AC power is made from cd power by the TRU's but it almost sounds like it's asking about the AC buses.

TRUs convert AC to DC (actually the rectifier part of the combined unit (transformer/rectifier unit) does the AC to DC, while the transformer part steps the voltage from 115V to 28V, but that seems to be way beyond this discussion).

Inverters convert DC to AC.

04-23-2015, 06:41 AM

#30

sevenforseven

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Position: Prone

Posts: 399

Quote:

Originally Posted by FirstClass

No its not. Cold soak has a specific definition at our airline, not to mention a specific definition per the aircraft manufacturer in the limitations section. This is not an abc question.

Cold Soak - Before first flight of the day if airplane has been sitting more than 8 hours and temperature is -30c (-22f) or lower.

Yes, FirstClass I understand that. KNOWING what cold soaked means and KNOWING what that number is as per your limitations is NOT rocket science. I hold three PIC type ratings and I have yet to see any radical departures or differences between different manufacturer definitions of "cold soaked" and what that number is.

Like I said, (to me) it's not complicated.