Journey to HX50 | Episode 24: Achieving perfection on the HX50 main rotor gearbox

[@johnwesley5036]

Model T Ford had epicyclic gearbox.Cutting edge technology?

[@brianb-p6586]

No, but nowhere in the video was there a claim that any of the technologies involved in the gearbox are "cutting edge". In fact, high predictability and reliability are most effectively achieved by avoiding any new technology, instead staying with what is proven. Epicyclic gearing is very common in helicopter main transmissions.

[@brianb-p6586]

The idea expressed at 3:01 that heat treating is masked by plating with a highly heat-conductive layer of copper does not make sense; what the copper masks is carburizing (the absorption of carbon from the gases in the oven). I assume that this is only a difficulty in expressing the process, not in understanding it.

[@brianb-p6586]

The "whole aircraft" testing mentioned at 3:48 hasn't occurred yet, of course, because a whole aircraft hasn't been built.

[@Hurldog-s9x]

REM finish the gears that is what the F1 and NASCAR teams do. And it cuts down on all the wear makes the last much longs with less friction . I think they have a place in the UK too. REM CHEM finishing

[@claroscesar3955]

Bien ami toca haser uno

[@laubemedeiros]

Muito top demais vamos fazer um pedido compra pra minha empresa Promon montagem coberturas

[@sudsierspace9010]

oloko ai sim

[@drdoolittle5724]

since flying was motorised, humans learnt that prototype planes and prototype engines in the same plane/helicopter are a poor mix - does anybody know whether there is another tried and proven engine up Mr Hill's sleeve, just in case?

[@spdcrzy]

It's not a prototype engine though...the design itself is very old. There's nothing new about the way it's designed, engineered, or assembled. The only difference is in manufacturing and quality control.

[@drdoolittle5724]

@@spdcrzy Thank you - what original design is it then please?

[@brianb-p6586]

Not really true,@@spdcrzy. It is a traditional configuration, but this is not a rebuild of any specific existing design. Every component is an opportunity for improvement, or for a design error.

[@SuperKoaren]

Very poorly explained. The copper coating prevents the steel from absorbing carbon in unwanted places during the case-hardening procedure. :)

[@10fantic]

If you watched the whole video, 2:25 he says exactly that.

[@SuperKoaren]

@@10fantic Yes you are right, he managed to hastily mention it. Listen 3:00 to 3:15, such incoherent chatter. I have a little difficulty listening to this bragging about these standard methods. :)

[@AlexanderBingham]

Having Material Scientists on staff are key an essential resource for an aerospace company. They are worth every penny they are paid.

[@brianb-p6586]

@@10fantic but starting at 3:01 he claims that the copper stops heat from being absorbed, which is nonsense. This is a scripted and rehearsed promotional video - the words should be correct.