[SOLVED] Inaccurate Performance vs REAL world charts

[Kyle Sanders]

Attachment removed: uploading of copyrighted content not permitted!

I have the ability to get my hands on the real world CRJ-200 performance planning charts.

I have been able to now FULLY plan EVERY aspect of my flights. I am now saddened due to the fact that I have realized the JROLLON CRJ2 does not perform the way that the real world charts say it should. Now where NEAR it.

I am not sure if you MEANT to have it perform differently or not but here is my assessment:

FLIGHT:

KATL-CYYZ

Planned distance 787nm

CONDITIONS: (without going too far into detail of HOW I cam up with the fuel and weight of the aircraft)

___X-Plane 9.70 JORDAN CRJ2 1.4.5 (refer to my signature)

___Initial GW: roughly 21,000KG

___ISA - 10C

___NORMAL A/C

___A/I off

___Thrust limits- as calculated via FMC (t/o, clb, crz, etc...)

CLB Profile: 250/290/M.74

300ft/min climb ceiling

At FL370 the rate of climb should be 500ft/min shown by provided chart

CRZ: M.77 FL370 (capable of F380 but due to SWEVEN/NEODD rules, we drop down to FL370)

I wish I could sit here and Explain my EVERY move with these charts but it would take a WEEK to write that book. I have attached here all the documents needed to plan this route.

I have left out simple things such as the T/O thrust, time, descent planning so that I may only convey my point here.

WHAT ACTUALLY HAPPENED:

__FL260 = 300ft/min top out.

__I pushed it out using V/S 300ft/min and disregarding my Mach speed

__Taking twice as long to climb as it was suppose to

__Got to FL365 and the CRJ started to dive.

Javier or Cameron, You may contact me for the ENTIRE planning documents if you wish.

[Cameron]

We're not looking for ways to change anything at the moment, but thanks, Kyle. I'm glad you enjoy the CRJ enough to try and dig deeper and learn everything about it!

 

Much of calculations are defined by the parameters by which X-Plane calculates things. Laminar may be very interested in your findings (Austin more specifically). I cannot guarantee it with their workload, but perhaps!

 

There are multiple variants of the CRJ, with various weight configs and features. We opted for as balanced as was necessary with the assistance of CRJ-200 pilots on hand (I also remember a number of check airmen "signing off" on this product...a number of which can be found in this forum).

 

Have fun above all, Kyle, and Happy New Year!