Reduced Thrust take off.
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I just get "The file is damaged and cannot be opened".
Maybe because it´s a *.ods file, which Excel 365 doesn´t support.Simbrief has the option to calculate Thrust reduction, but in the current profile for the Avro RJ's, this is not enabled.
EDIT
Here is another link with a *.xlsx file that works for the Bae 146.
https://flightsim.to/file/37415/bae-146-flex-temperature-calculator -
I was hoping being able to use SimBrief's Takeoff Performance calculation, however it always returns
SEL TEMP = NONE.I assume this relates to missing performance data in the aircraft profile. Is this something JustFlight could collaborate on with Navigraph?
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The way I see it is that the product should include such performance data. JustFlight's YouTube tutorial nicely demonstrates how to set the Flex temp, however, without any data source, the feature is useless as one should not just randomly dial in a temp. It is crucial to provide a performance calculator or a document to determine the Flex temp. I hope the manual will be expanded with such performance data or the EFB will feature a Flex temp calculator.
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Airfield performance for an aircraft is a very complex area. The 146/RJ, like all types in Performance Group A, are subject to assessing its take-off/landing ability for a runway against the manufacturers figures for the type. The deduced data (net performance) applies to 1,500 ft above the field and takes into account many, many factors. It’s not actually something a pilot could or would routinely calculate. However, without a chart for each and every runway expected to be the used, an aircraft could not operate. Suppliers of the required charts charge an arm and leg to supply the charts - quite rightly too.
The point is, without the charts (or a very complex computer program) it is impossible to correctly apply the required rules to get an accurate and ‘true to life’ Flex temperature - and the real method to obtain Tflex (contained in the FCOM/Flight Manual) require methodical application.
Have a look at at the FAA rules (UK and EASA rules much the same) https://www.sapoe.org/wp-content/uploads/2013/02/10-ICAO-Friction-Task-Force-and-EASA-Rulemaking-Task-Force.pdf. Those rules are then applied to the Flight Manual data - it’s a very complex area.
I think assuming that it’s JF’s responsibility is unfair.
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I would've made one if I had the data, but I only have low res charts for the RJ85. It could theoretically be done, but because of the poor image quality, it would be incredibly time consuming and it would only feature the RJ85.
I am a programmer and if I was provided with good data, I could make a TKOF/LDG performance calculator.
That's a big "if" though as it is unlikely that I'll ever get that data. -
I assume (assumption is the mother of all f-ups as we know) Justflight has access to such data as they surely had access to many other details related to the simulation. It would be awesome if you guys could somehow co-operate on this. Those serious about flight simmig as a hobby understand the importance of a takeoff performance calculator. We have the FLEX feature implemented which is awesome but right now we cannot safely and reliably use it, we are limited to guesswork, which in aviation can be lethal. Also, these days a tool like a takeoff performance calculator (or at least a data sheet of some sort) would be reasonably expected from a Professional product. If an aircraft in normal line operations regularly use the FLEX feature then it is fair to expect a tool that helps calculate these figures. Either something in the tablet as is the case with most 3rd party aircraft addons, or alternatively, as an external app or even a PDF document with the data to calculate the flex temps. Without something to aid the armchair pilot, the only safe way is to always perform max power takeoffs.
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My hand is out to anyone willing to give me the data and I would even do it for free out of love for this aircraft.
However, knowing how companies work in general, saying those words sadly isn't enough. -
The problem with sharing proprietary information is that the copyright owner may take exception to someone doing so. I wouldn’t want to use a large chunk of my BAe Systems pension on fighting legal action against me.
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@Paul-Cairns Exactly.
Kind of sad that the world works like this given that an uncertified tool for take-off and landing performance for a product that is dead wouldn't be a competitor to anyone.
There would be no financial loss for anybody, but the companies are so wrapped up in red tape that harmless projects like this are impossible.
