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-   -   Best SAR Aircraft Ever (https://www.pprune.org/military-aviation/294094-best-sar-aircraft-ever.html)

Role1a 2nd Oct 2007 12:34

My contribution for what its worth.
Fixed wing (amphibious) – Walrus – War record speaks for its self. Could be included in the CSAR category.
Fixed wing - Nimrod – Comms suite, range and sets of eyes.
Rotary - Sea king 3a – It’s slow, it’s an old design, but the radar puts it above the newer stuff.
CSAR - MH-53 Pave Low – TFR and it looks good.
R1a

PingDit 2nd Oct 2007 14:06

Nimrod MR - Best radar, good comms, loadsa lookouts, air dropped dingies,
you can eat while you're doing it!

Mr Point 2nd Oct 2007 22:39


Rotary - Sea king 3a – It’s slow, it’s an old design, but the radar puts it above the newer stuff.
Great aircraft but the radar, as of course in the Mk3, is massively flawed with a 30 degree blind sector on the nose! God bless blind arc clearances - long live the King.

Kitbag 3rd Oct 2007 02:43

Small crew but ideal equipment carrier http://www.martinbowersmodelworld.com/tb2photo3.JPG

wobble2plank 3rd Oct 2007 07:43

How about the German Navy Seakings based at Kiel??
Take the venerable old Sea Queen and plug an up to date S-61 radar in it, multi function displays with search pattern track display for the pilots and remarkably steadfast reliability when on task.
Is an excellent beastie, soon to be replaced by the NH-90. Will watch with interest.

http://www.hmfriends.org.uk/images/hd05gerseak65.jpg

Role1a 3rd Oct 2007 18:58

Of course the mighty Sea King could also be included in the amphibian category!!
R1a
http://213.photobucket.com/albums/cc...terlanding.jpg

Razor61 3rd Oct 2007 19:07

Have crews in the UK ever practiced water operations with the Seaking like they do with the Chinook (now and then)?

tucumseh 3rd Oct 2007 19:15

"Great aircraft but the radar, as of course in the Mk3, is massively flawed with a 30 degree blind sector on the nose!"


Agreed. But remember, the RAF could have had the RN scanner/radome, with half the blind arc, for much less, but insisted on the expensive option. Same applies to the TxRx.

Mr Point 4th Oct 2007 00:08


Have crews in the UK ever practiced water operations with the Seaking like they do with the Chinook (now and then)?
Selected pilots, and occasionally rearcrew, attend the Waterbird course in Canada (see the photo above), but this is not practiced in the UK.

wobble2plank 4th Oct 2007 10:52

The 'Waterbird' course is a fantastic course run by the Canadians based out of Halifax (or was?).

Great eye opener as to what the aircraft can do but the Cab is specially sealed and prepared. Must admit I wouldn't like to have done the same thing in either a normal cab or with a swell running!!!

The normal nose bay only has a compression seal which is not man enough for the job of keeping the water out fully in normal circumstances.

It is a truely bizzare feeling to run the aircraft forwards on one donk, pitch to 'surf' the bow wave then 'overpitch' to get airborne. Then fight the NR/height/speed etc....

Great fun

[email protected] 4th Oct 2007 16:22

Wobble - yes it's still run at Shearwater - don't know for how much longer though - and yes, outstanding fun.

Shack37 4th Oct 2007 21:47

Wossamatter, can't anyone spell SHACKLETON?:ok:

Razor61 4th Oct 2007 23:13

So why does the Seaking have a boat shaped hull if it isn't up for the job of landing on the water unless specially prepared?
Another helicopter with the same kind of shaped hull comes to mind, the Mi-14... but with floatation gear deployed..... however...it didn't go to plan. What did the pilot do here?
http://youtube.com/watch?v=9LFLWcFpw6A

wobble2plank 5th Oct 2007 07:37

Perhaps in its initial conception the Sea King was designed to allow water operations. However, as the gross weight of the aircraft has steadily climbed to 21,400lbs over the years, the nose bay has been stuffed with electronics and the radar has been added under the rear freight floor in the bathtub below the theoretical water line, the aircraft sits considerably lower in the water allowing significant water ingress.

If you look at the Shearwater picuter above all seals are protected with water proof tape.

Whilst the normal aircraft will not take long time immersion in water, the boat hull and SEWTO (Single Engine Water T/O) capability does allow for engine failures in the hover when heavy to be recovered if dealt with in a reasonable amount of time. The aircraft can also be water taxied over long distances if
required, as happened to a friend of mine in Mounts Bay many years ago.

As to the Mi 14, it looks as if the pilot tries to apply full power with forward cyclic into the swell :sad: The resulting tip strike would be fairly catastrophic in all helos. Water is HARD! The course at Shearwater teaches, wait for the aircraft to stabalise, if possible run with the swell, gently trim the rotor disc forward, always watching the distance of the tips to the water surface. When the bow wave reaches to bottom of the windscreen, blip the collective to break the surface suction of the water, ride the bow wave, over pitch the collective to get airborne, nose down, gain airspeed, reduce collective as you enter the ground cushion. Continue gently trimming forward to increase the airspeed whilst attempting to maintain an NR in excess of 91%. As translation lift comes in to force climb away slowly whilst recovering NR. Brains a bit rusty but thats what I remember. :}

W2P

wokkameister 16th Oct 2007 18:03

Best Sar Aircraft Ever?
 
The one above you as you bob around in the oggin next to a sinking wreck?

WM

Razor61 16th Oct 2007 19:06

W2P
Many thanks for that reply, just the sort of answer that was needed.
Thanks


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