Type 45 Destroyer (Daring Class) (RN) [News Only]

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Ron5
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Re: Type 45 Destroyer (Daring Class) (RN) [News Only]

Post by Ron5 »

ETH wrote:
Ron5 wrote:
Jdam wrote:Didn't Dauntless radar get an upgrade during the PIP as well?
Sampson did, don't know about the SM1850.
Upgrade or just a maintenance refresher like S1850M?
Dunno but they shipped it ashore for the update. There's a picture of it on a barge someplace.

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ETH
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Re: Type 45 Destroyer (Daring Class) (RN) [News Only]

Post by ETH »

Ron5 wrote:Dunno but they shipped it ashore for the update. There's a picture of it on a barge someplace.
All radars need specialist maintenance off the ship at some point. Each S1850M kit is being sent to the Netherlands for maintenance and replacement of obsolete parts. HMS Montrose had a new Artisan system installed out in Bahrain.

The image you speak of was ferrying a Sampson system from the Isle of Wight to Portsmouth, the facility where they were manufactured and maintained (and the current home of BAE’s naval radar division) is in Cowes.

Ron5
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Re: Type 45 Destroyer (Daring Class) (RN) [News Only]

Post by Ron5 »

I actually meant that I didn't know the location of the photo, not where it was taken :lol:

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ETH
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Re: Type 45 Destroyer (Daring Class) (RN) [News Only]

Post by ETH »

Haha, my bad :D

tomuk
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Re: Type 45 Destroyer (Daring Class) (RN) [News Only]

Post by tomuk »

ETH wrote:HMS Montrose had a new Artisan system installed out in Bahrain.
Reading the RN press release it appears they took it off to replace the rotator and put the same Artisan back on.

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SKB
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Re: Type 45 Destroyer (Daring Class) (RN) [News Only]

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tomuk
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Re: Type 45 Destroyer (Daring Class) (RN) [News Only]

Post by tomuk »

Type 45 destroyer HMS Defender fitted with new ARM (Angry Royal Marine) missiles.
Image

@NavyLookout https://twitter.com/NavyLookout/status/ ... 9161681921

Scimitar54
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Re: Type 45 Destroyer (Daring Class) (RN) [News Only]

Post by Scimitar54 »

Slightly wrong! It is the Army that is a projectile (missile) to be fired by the Navy. The Navy of course includes the Royal Marines. :mrgreen:

NickC
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Re: Type 45 Destroyer (Daring Class) (RN) [News Only]

Post by NickC »

FWIW recently came across range of Aster 15 (310kg) & 30 (450kg) missiles quoted by Norman Friedman 2005 Naval Institute Guide to World Naval Weapon Systems - 5th Edition

Aster 15
Max range (non-performing targets) 30 km /16 nm
Range against subsonic sea skimmers or supersonic fighters 1.7 to 17 km / 1 nm to 9 nm
Range against supersonic sea skimmers 1.7 to 12 km / 1 nm to 6.5 nm

Aster 30
Max range (non-performing targets) 120 km / 65nm
Range against subsonic sea skimmers or supersonic fighters 3 to 50 km / 1.6 nm to 27 nm
Range against supersonic sea skimmers 3 to 35 km / 1.6 nm to 19 nm

Have seen claims the new variant Aster 30 Block 1NT contracted for future fit to the T45 extends max range by 25% to 150 km/ 80 nm and presume similar percentage increases in range for performing subsonic and supersonic targets.

PS Of interest Sea Ceptor at only one third of the weight of a Aster 15 claims max range of 25 km, 80+% of an Aster 15, how is that possible?
MBDA claims Sea Ceptor soft launch enables ~30% more range as opposed to missiles rockets fired live from their VLS cells, the rocket motors usually burn out after only ~ 7 to 10 seconds so a much higher percentage of their energy used on launch and turn over.

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SKB
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Re: Type 45 Destroyer (Daring Class) (RN) [News Only]

Post by SKB »

Is there an Aster IX?
Image Gotcha. :mrgreen:

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ETH
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Re: Type 45 Destroyer (Daring Class) (RN) [News Only]

Post by ETH »

NickC wrote:Have seen claims the new variant Aster 30 Block 1NT contracted for future fit to the T45 extends max range by 25% to 150 km/ 80 nm and presume similar percentage increases in range for performing subsonic and supersonic targets.
FWIW that only stems from new lofted flight profiles so you won't get an equivalent range/energy increase at low altitude intercepts.
NickC wrote:PS Of interest Sea Ceptor at only one third of the weight of a Aster 15 claims max range of 25 km, 80+% of an Aster 15, how is that possible?
MBDA claims Sea Ceptor soft launch enables ~30% more range as opposed to missiles rockets fired live from their VLS cells, the rocket motors usually burn out after only ~ 7 to 10 seconds so a much higher percentage of their energy used on launch and turn over.
Aster 15 as a system is much less efficient than Aster 30 or CAMM. A lot of A15's mass goes to A30 sized parts, designed to fit an A30 sized booster. A15 was developed after A30 and used the same sustain motor but a far smaller booster which is near used up once it leaves the ship.

NickC
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Re: Type 45 Destroyer (Daring Class) (RN) [News Only]

Post by NickC »

ETH wrote: 17 Nov 2021, 20:46
NickC wrote:Have seen claims the new variant Aster 30 Block 1NT contracted for future fit to the T45 extends max range by 25% to 150 km/ 80 nm and presume similar percentage increases in range for performing subsonic and supersonic targets.
FWIW that only stems from new lofted flight profiles so you won't get an equivalent range/energy increase at low altitude intercepts.
Thx for your input, had wondered if using new gen higher energetic propellant, Americans looking at CL-20 though understand its nasty stuff.

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