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-   -   Typhoon AAR (https://www.pprune.org/military-aviation/627807-typhoon-aar.html)

Compass Call 6th Dec 2019 20:44

Typhoon AAR
 
Heard a rumour that a Typhoon landed in the Middle East with some of the AAR gear still attached to its probe. Tanker continued on its way.
Anybody know any more? Photos?

Compass Call 7th Dec 2019 09:17

No response. Must have been a rumour then.

Timelord 7th Dec 2019 13:27

I don’t know anything about this rumour but it was not unheard of to land with the basket still attached to your probe. There is a weak link behind the basket so that a whip developing in the hose doesn’t rip the probe off the receiver.

Chris Kebab 7th Dec 2019 15:43

Absolutely, it's possible - these things happen, tad embarrassing for the individual maybe, but really, nothing to see here....

Compass Call 7th Dec 2019 20:50

So, safely assume there was no real damage to the taxpayers asset then.
Thanks for your responses gents.

45-25-25 7th Dec 2019 21:36

Compass Call Out of idle curiosity have you ever done any AAR?

Compass Call 7th Dec 2019 21:46

45-25-25
Afraid not.
I was a fitter on Canberras back in the '70s !!

switch_on_lofty 7th Dec 2019 22:24


Originally Posted by Compass Call (Post 10634577)
45-25-25
Afraid not.
I was a fitter on Canberras back in the '70s !!

Never say never! 😀

BEagle 8th Dec 2019 09:02

AAR can sometimes be problematic. In the following clip, the Italian AMX misses the first time, drops back and re-establishes the correct waiting position. On the second approach to contact, the hose suddenly jerks forward and the brake is applied. Instead of immediately putting on the red light and ordering the receiver to discontinue the approach, the refuelling operator watches helplessly as the receiver makes contact against a hard hose. This cause a whip and the drogue becomes detached:


Steel wire from the damaged hose cause serious damage to the canopy and front fuselage of the AMX; if I recall correctly cabin pressure was lost and the pilot only just made it to the abort aerodrome.

Sleeve Wing 8th Dec 2019 20:19


Originally Posted by BEagle (Post 10634777)
AAR can sometimes be problematic.
Steel wire from the damaged hose cause serious damage to the canopy and front fuselage of the AMX; if I recall correctly cabin pressure was lost and the pilot only just made it to the abort aerodrome.

- Paraphrased.

Maybe the relative position of the AAR probe, Beags ?
Even back in the sixties without some of the fancy gadgets now available, with the drogue and six feet of hosed still attached to the probe, the only damage was brown trousers and a lot of paint removed from the nose cone. Not recommended.



Homelover 9th Dec 2019 10:31


Originally Posted by Compass Call (Post 10634561)
So, safely assume there was no real damage to the taxpayers asset then.
Thanks for your responses gents.

Compass Call

Do you think that your status as a taxpayer entitles you to know all the operational aspects of every type of UK military activity? I don’t think that is how it works. Don’t be nosy.


Odanrot 9th Dec 2019 10:50

There’s only one thing you need to know about AAR, and that is that there are only two sorts of pilots that do it.

Those that have f****d up behind a tanker and those that are in the queue.

45-25-25 9th Dec 2019 16:44

Compass Call. I was on Canberra B(I)8s in Germany in 1969 and then became a founder member of the RAF Buccaneer Force. We did a lot of AAR both from big tankers Victors and VC 10s and from the Buccaneer in the Buddy Buddy role - day and night. I never found it easy and the pulse rate always went up when I lined up behind the tanker. Fortunately I never had a 'spokes' (when the probe went through the spokes of the drogue) nor a drogue ending up on my probe. I once had to refuel in serious turbulence in the Inter Continental Tropical Zone between the Azores and Puerto Rico - I felt I earned my flying pay that day! I have, in the UK, seen a Buccaneer come back with an entire hose trailing behind the aircraft. It is little like riding a bike and all pilots need to build up their experience including first tour Typhoon pilots. As someone else has remarked in this thread "there but for the grace of God"!

57mm 9th Dec 2019 18:16

As was explained to me, AAR is "Taking a flying f**k at a rolling doughnut", or "Pushing wet spaghetti up a cat's arse....."

vascodegama 9th Dec 2019 18:21

Weak Link
 
Timelord

I thought that the weak link was on the receiver probe.

Timelord 9th Dec 2019 18:27

Really? Maybe, but I’ve seen several baskets on probes but never a missing bit of probe.

vascodegama 9th Dec 2019 18:37

Well I would say the other way round - I saw numerous probe bits retained in baskets and they all seemed to break at the same point! The offending item was often mounted and returned to the offending unit!

Compass Call 9th Dec 2019 22:06

Homelover
If I want to be nosy, I'll be nosy - so there.

Easy Street 10th Dec 2019 06:17


Originally Posted by Timelord (Post 10635773)
Really? Maybe, but I’ve seen several baskets on probes but never a missing bit of probe.

There’s no ‘maybe’ about it: (link)


Originally Posted by Def Stan 00-970 Part 13
The probe shall be provided with a weak link so that the nozzle will break away in the event of excessive loads occurring due to instability of the hose or of failure of the nozzle and coupling to release under normal operating conditions. It shall also be provided with a non-return valve so that, in the event of such breakage, fuel spillage will not endanger the Receiver.

You can even buy a weak link assembly in time for Christmas, complete with green tape to stop any of the shear rivets being ingested by an engine. Although the tape does not appear to have been retained in the instance pictured:


Other failure modes are available, as you’ve seen.

ksimboy 10th Dec 2019 07:39

C130K had a probe tip break off during AAR Training, left a very interesting shaped chunk out of one of the prop blades.


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