PPRuNe Forums - View Single Post - UK Strategic Defence Review 2020 - get your bids in now ladies & gents
Old 14th Jul 2021, 16:38
  #739 (permalink)  
Not_a_boffin
 
Join Date: Apr 2006
Location: Portsmouth
Posts: 529
Received 171 Likes on 92 Posts
Originally Posted by Asturias56
What astounded me is that after so many years they don't know what is causing the vibration. You'd have thought taking one to Jaguar Land Rover, Nissan or one of the F! operations might be a good idea?
Not sure that the vibration issue has been around for "so many years". It seems only to have surfaced relatively recently once they started running certain variants of the vehicle.

That's the problem with dynamics, natural frequencies and weight/inertia distribution. You can't necessarily predict that it's going to happen - or model it prior to design and build. There also seemed to be some confusion and conflation between vibration and airborne noise which are not necessarily the same thing.

They've taken it to Millbrook, which is exactly where you'd go with a problem like this - and probably where JLR, Nissan etc would go too.

The real problem they have is that they're at the back end of a catastrophic history of programme and development failures (FRES, Tracer etc) that have eaten hundreds of millions if not billions, left the army with a worn-out vehicle fleet, with Warrior CSP cancelled and Chally 3 approved by the skin of its teeth. Politically (particularly with the Tubster and Tobias Nice but Dim as ex-pongoes on the warpath) they can't afford for this to fail, but they're in a real bind. Conkers deep in terms of committed spend, later than a late thing that overslept badly and potentially with a difficult to solve problem.

Which is why turning up with an answer that came across as "ooooh I don't really know Vera" just digs them deeper. Had they put the Tubster back in his box by pointing out that :

1. Analogies with buying a car are irrelevant - you're not buying OTS where models sell in millions, you're essentially asking Bugatti to design and build you a couple of hundred Veyrons only with tracks and a turret. From scratch - which means you have to pay. (Of course whether that bespoke route was the correct choice is a different matter.....)
2. Vibration is difficult to predict and often only occurs when you do your T&E. Which is why you do your T&E.
3. They're asking the experts in the UK to sort it out.and until its diagnosed, they can't predict the fix and therefore cant predict the IOC. So don't ask stupid questions.

they might have come across better. Instead they came across as shifty and evasive.


Not_a_boffin is online now