Sentries grounded
 

The main picture is not one of our Sentries, it's an older version.

Yet more Kapton wiring fires near flammable insulation perchance?

How similar is RJ?

WASALOADIE

I suppose the give away is the photo credit:ok:

Excellent, good excuse to scrap this one trick pony, save Sentinel and buy more P-8s!

Taken from the article....

" The aircraft are not technically grounded but are rather unservicable.


That's one way of putting it....although there are more succinct engineering terms available. :E

I thought the new term was "paused".

How long will it take for the die-hard conspiracy nuts to claim that the new variant of the Russian Air Force Ilyushin 22 (IL-22PP) fried the E-3s?

https://sputniknews.com/military/201...-AWACS-planes/

On a positive note ...
 

It only takes about 4 hours to convert a weapons controller onto the ground-based system (UCCS), so at least those stuck on the ground will continue to able to be useful members of society by working from Scampton (a short drive away) whilst the jets are grounded. ;)

One Trick Pony and Sentinel in the same sentence, who'd of thought :)

Good job they aren't plastic and made by Grob, crews could be in for a long wait 🤓

Or spiral 1 P8!!!!

Sounds like a pretty stupid comment to me..

Seeing as we need that particular trick available now and in the future. What needs examining is why the older NATO AWACS aircraft don't have the same problem. Is it down to a lack of maintaining them to the same degree?

What an incredibly strange thing to say.

So you think we should get rid of AEW. Yeah that worked well last time we tried it. NOT.

Given that all the 70-odd 707-320B based E-3 AWACs airframes were ‘new-build’ between 1970 and the mid 90s, one might presume that the entire airframe history, and servicing, repair and modification records should still be in the possession of the original purchasers. Meaning, none are second-hand, such that any airworthiness or safety problems might be blamed on a ‘murky past.’

Presuming for the moment that the electrics haven’t actually been ‘fried by sputnik,’ this somewhat awkward situation begs a couple of questions.

Is this problem unique to the six remaining RAF airframes, or is it shared by any of the other four operators ? The report says ‘other nations are not thought to be affected’ but it does not explain why not. It certainly seems to be an urgent safety issue for the RAF.

So how is it that apparently only the RAF has encountered this problem ? Has it already been met and rectified elsewhere without the knowledge or engagement of the MoD ? Or is it something that has been introduced this side of the pond ?

I note that in 2009 ‘the MoD cancelled plans for an upgrade’ (I assume this was the 2006 Project Eagle) ‘because it was unaffordable’ and then did not join the ‘Block 40/45 modernisation’ either. This I think, attracted suggestions that having fallen so far behind, it would be difficult to play catch-up at a later date, which was probably why MoD seemed to lose interest in the whole Sentry programme a while back.

Coming to their senses a year ago, it was announced that a so far undefined ‘upgrade path’ (so presumably unique to the RAF) would be undertaken from 2020, to extend its service life ten years beyond the previously announced date of 2025.

Seeing that Northrop Grumman UK has just been awarded a contract to run the UK Sentry WLSP out to 2025, one hopes that there is now a coherent long-term plan, at least until the next Defence Review.

This grounding, apparently for technical issues related to the integrity‎ of electrical wiring and cabin conditioning system, seems to have been a surprise. Given that only one UK Rivet Joint is currently operating while some folks are at the same time dissing the Sentinel, it seems we have been caught short again, intelligence-wise. It is to be hoped that rectification will be both speedy and effective to return the RAF E-3Ds to safe service.

Whatever next ?

...................

The issues of Kapton and flammable blankets do not apply to USAF aircraft as they are a different build standard. The do overlap with NATO aircraft (blankets) but NATO followed Boeing advice and modified their aircraft and the French have similar programmes in line with the various airworthiness directives.

The DE&S response was to fund programs to show that Boeing could be wrong, to try and prove airworthiness directives do not apply to the MoD and using the number of recorded fires on U.K. Sentry to date as evidence that not all fires are catastrophic and that the crew's ability to fight fires could be used to meet the safety target.

They even funded a programme to set fire to a representative configuration in an effort to prove the FAA, Boeing, Airbus, CAA, EASA and Transport Canada wrong. A few made efforts to suggest fixing the wiring and removal of the flammable material may have been better options, but DE&S preferred to spend money on safety case manipulation and fighting the opinion of all other airworthiness bodies.

I don't doubt a word of it but the sheer hubris involved is F35 esk...

glad rag:-
Glad to hear that glad (clever eh?), but others still do doubt despite this being the third fleet grounding recently; Nimrod (permanently), ACO Gliders (ditto?), and now Sentry. Tuc has been banging the drum that this is the result of a systemic problem, while the MOD line is that every occurrence is unique and the fault of manufacturers, aircrew, named SOs, etc. The fault lies with those who set out to plunder the Air Safety budgets, order that the regs be suborned to save time and money, and rid themselves of the experienced and trained cadre of engineers who would not comply. We are now left with those that produced the fiasco that JTO recounts, and which I don't doubt either.

For those with short memories, the UK AEW force was declared to NTO as our contribution to the NAEWF in lieu of paying for the rest of the force and contributing crews.

One presumes that, in their absence, we will be having to pay our fair share of the costs for the remainder of the force and its use. I doubt there are any savings, and with the remaining duplication in infrastructure it probably absorbs additional cost, not a saving.