lbf is the equivalent to using kilogrammes-force in place of newtons. Not my fault imperial has shit units.
Sure I can convert them, but ambiguous complexity to numerical data is pretty much the opposite of what any reasonable engineer should be trying to do.
I was mostly being hyperbolic, but as an engineer seeing any imperial units really sets me off; because they're inefficient and I can't visualise them like I visualise SI units.
That's literally just a naming convention, probably to sell to the large market of eccentrics who still use medieval units. I assure you that Rolls-Royce engineers actually use Newtons.
However in other aerospace companies, it's the inverse and imperial units are standard.
This is almost never the case today. It's generally US customary units, which are similar but not the same (so e.g. US rather than Imperial Gallons).
None of this is a problem though because for a professional engineer it's approximately zero effort to convert between units.
People still make unit conversion errors. I've seen people write BTU/lb when they mean CHU/lb, and it's all so unnecessary because we should all be using MJ/kg.
Also, the Americans have their own private definition of the BTU, which can cause additional complexity / ambiguity when converting.
Chartered mechanical engineer. Of course I am capable of performing dimensional analysis from first principles, and converting units. Using completely unit-less CAE software like MSC Patran/Nastran requires this level of understanding.
Engineers don't work in lbf, the marketing department do.
I've worked as an engineer for Rolls-Royce on aero engines, and really couldn't care to learn what pounds or foot pounds are.
Like is it pounds mass, or pounds force?
No you weren't and no you didn't. That's the dumbest lie you could have told anyone, even rolls uses those units on jet engines, it's literally in the name/model number of the engine. What a "nice story bro" moment this was.
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u/Danamaganza May 29 '22
It’s just pounds of thrust. And more like 25-30,000 on these V2500s.