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by NickC
17 Nov 2019, 19:17
Forum: Royal Navy
Topic: Current & Future Escorts - General Discussion
Replies: 10706
Views: 662316
Location: United Kingdom

Re: Current & Future Escorts - General Discussion

To be clear on this Nick the s1850-m as used on the R.N fleet cannot be upgraded but would need to be largely replaced to match the capabilities as used by new Dutch naval ships for an abm capability ? The write up of the Block 2 De Zeven Provinciën class frigates states the new AESA GaN MM/N varia...
by NickC
15 Nov 2019, 14:31
Forum: Royal Navy
Topic: Current & Future Escorts - General Discussion
Replies: 10706
Views: 662316
Location: United Kingdom

Re: Current & Future Escorts - General Discussion

Just out of curiosity is the s1850m sensor capable of being upgraded to increase performance ,as the principle radar protecting the carriers from attack with the advent now of more supersonic if not hypersonic threats is there any feasibility of this? I can understand the f35b has some ability in d...
by NickC
07 Nov 2019, 10:18
Forum: Royal Navy
Topic: Current & Future Escorts - General Discussion
Replies: 10706
Views: 662316
Location: United Kingdom

Re: Current & Future Escorts - General Discussion

CPP and FPP CPP use hydraulic mech on large propeller boss to change pitch appropiate to speed and sea state, more expensive than FPP which most merchant ships use as more efficient as optimised for a limited speed range USN Burkes with its four GTs, two combining MGRs, two prop shafts and CPPs, max...
by NickC
06 Nov 2019, 17:41
Forum: Royal Navy
Topic: Current & Future Escorts - General Discussion
Replies: 10706
Views: 662316
Location: United Kingdom

Re: Current & Future Escorts - General Discussion

unloading the propeller tip decreases the noise disturbance of the water/cavitation by the propeller, but can reduce its efficiency. Type 26 uses an optimised FFP for this reason, whilst FREMM uses a CPP, as always a trade off as though FPP will be quieter at low ASW speeds, its less efficient than...
by NickC
06 Nov 2019, 13:08
Forum: Royal Navy
Topic: Current & Future Escorts - General Discussion
Replies: 10706
Views: 662316
Location: United Kingdom

Re: Current & Future Escorts - General Discussion

Looks like a smaller Iver Huitfeldt class frigate at approx twice the cost, appears high cost driven by having ~ 90+% French content, build time of 2 and a half years, fully equipped GP frigate with AAW, AShM though its ASW ops limited by its noisy CODAD, reinforces my view that the T31 as currentl...
by NickC
05 Nov 2019, 18:37
Forum: Royal Navy
Topic: Current & Future Escorts - General Discussion
Replies: 10706
Views: 662316
Location: United Kingdom

Re: Current & Future Escorts - General Discussion

Still not for speed dude. RCS reduction, seakeeping or looks: take your pick. Are you sure, the Sea Axe bow you quoted is designed for speed, the Associate Professor at the Delft University, Lex Keuning, explicity states he designed the new type of hull with the Sea Axe bow built to withstand more ...
by NickC
05 Nov 2019, 09:35
Forum: Royal Navy
Topic: Current & Future Escorts - General Discussion
Replies: 10706
Views: 662316
Location: United Kingdom

Re: Current & Future Escorts - General Discussion

Not the only personal assumption that crept into that comment. e.g. the Sea Axe bow. Not for speed but for sea keeping. The Sea Axe bow design different in concept and shape, developed by Damen and Delft University The French bow for the FDI different shape as shown in the NavyRecognition/Xav Aug 2...
by NickC
04 Nov 2019, 17:10
Forum: Royal Navy
Topic: Current & Future Escorts - General Discussion
Replies: 10706
Views: 662316
Location: United Kingdom

Re: Current & Future Escorts - General Discussion

Re: Current & Future Escorts - General Discussion Unread postby donald_of_tokyo » 04 Nov 2019, 16:13 NickC wrote: Looking at the new French FDI (Defense and Intervention Frigate) following the steel-cutting ceremony of the first ship October 24th., previously the FTI (Frégates de taille intermé...
by NickC
04 Nov 2019, 16:04
Forum: Royal Navy
Topic: Current & Future Escorts - General Discussion
Replies: 10706
Views: 662316
Location: United Kingdom

Re: Current & Future Escorts - General Discussion

Looking at the new French FDI (Defense and Intervention Frigate) following the steel-cutting ceremony of the first ship October 24th., previously the FTI (Frégates de taille intermédiaire). Uses an unusual type of hull design, shades of Zumwalt, inverted bows to maximise the length of waterline and ...
by NickC
29 Oct 2019, 14:26
Forum: Royal Navy
Topic: Type 26 Frigate (City Class) (RN) [News Only]
Replies: 3924
Views: 304712
Location: United Kingdom

Re: Type 26 Frigate (City Class) (RN) [News Only]

First time have seen the power of the new T26 shaft mounted electric motors quoted, re. GE PR quoted by NavalNews, re. their bid for the propulsion system for possible future 8,000t KDDX Korean destroyer. "The HED system would use the 3.4 MW shock tested motor designed for the United Kingdom Ro...
by NickC
20 Oct 2019, 12:00
Forum: Joint Service
Topic: F-35B Lightning (RAF & RN)
Replies: 4349
Views: 336386
Location: United Kingdom

Re: F-35B Lightning (RAF & RN)

The delay of the F-35 able to complete IOT&E due to delays of 'F-35 In-A-Box' (FIAB) proving it can operate in a high threat environment against peer enemies pushing back Milestone C, full production authority to possible 2021, but seems to have little effect as high production rate continues un...
by NickC
12 Oct 2019, 14:33
Forum: Royal Navy
Topic: Current & Future Escorts - General Discussion
Replies: 10706
Views: 662316
Location: United Kingdom

Re: Current & Future Escorts - General Discussion

Re. the purported missile attacks October 2016 on USN ships by the Yemeni Houthi in the Bab-el-Mandeb strait and the Burke destroyer Mason shooting down Chinese anti-ship missiles. Why 'purported'. The USN has never issued a report or released the results of an official investigation, it is to be no...
by NickC
11 Oct 2019, 11:32
Forum: Royal Navy
Topic: Type 31 General Purpose Frigate [News Only]
Replies: 6195
Views: 414849
Location: United Kingdom

Re: Type 31 General Purpose Frigate [News Only]

If understanding correctly MIRADOR only operational in daytime and fair weather as no radar, laser would not operate at night, in heavy rain, fog, snow, smoke etc to give necessary range info with the passive IR camera, whereas the STIR with its radar makes it a 24 hour all weather system. Though B...
by NickC
10 Oct 2019, 13:41
Forum: Royal Navy
Topic: Type 31 General Purpose Frigate [News Only]
Replies: 6195
Views: 414849
Location: United Kingdom

Re: Type 31 General Purpose Frigate [News Only]

Jane's T31 article posted above by Aethulwulf lists options for gun fire control, surprised no mention of the Bofors option of an on-mount TV camera and muzzle velocity radar with digital fire control system for the 57mm and 40mm guns, presume due to Babcock/Thales systems agreement. "Alternati...
by NickC
04 Oct 2019, 14:10
Forum: Royal Navy
Topic: Royal Navy Gunnery Discussion
Replies: 184
Views: 13367
Location: United Kingdom

Re: Royal Navy Gunnery Discussion

Effective range of navy AAW guns, the 76m the West's current most sophisticated and powerful gun/ammo, 4.5 km range at a slow 100 m/s target, higher target speeds will reduce range sunbtantionally. A November 2017 Leonardo video demo of the OTO Melara 76/62 SR Strales firing its DART guided round ag...
by NickC
03 Oct 2019, 14:21
Forum: Royal Navy
Topic: Royal Navy Gunnery Discussion
Replies: 184
Views: 13367
Location: United Kingdom

Re: Royal Navy Gunnery Discussion

Definitely worth noting that even the Italians, who prop up gunnery based anti-air more than any other nation, still saw fit to have high end radar and Aster-30 capable silos on their PPAs. PPA also has following guns fitted - 1 x OTO Melara 127/64 mm with Vulcano extended range ammunition and AAHS...
by NickC
03 Oct 2019, 14:05
Forum: Royal Navy
Topic: Royal Navy Gunnery Discussion
Replies: 184
Views: 13367
Location: United Kingdom

Re: Royal Navy Gunnery Discussion

The US Army ~2009 EAPS program (Extended Area Protection and Survivability) for C-RAM, counter rocket artillery and mortar, used a Technovative Applications interferometer radar (US Army claimed it was the most accurate technique known for measuring angle of arrival of a radio signal), with a 50mm B...
by NickC
03 Oct 2019, 11:23
Forum: Royal Navy
Topic: Royal Navy Gunnery Discussion
Replies: 184
Views: 13367
Location: United Kingdom

Re: Royal Navy Gunnery Discussion

Ponoglo earlier queried the effective range of a 57mm 3P round in AAW mode, googled unsuccessfully but found Leonardo PR of 2014 trials with their 76mm SR and saboted DART sub-calibre projectile, more than 5 km (say 5.25 km?) against targets at low and very low altitude. DART (Driven Ammunition Redu...
by NickC
01 Oct 2019, 15:04
Forum: Royal Navy
Topic: Royal Navy Gunnery Discussion
Replies: 184
Views: 13367
Location: United Kingdom

Re: Royal Navy Gunnery Discussion

A lot is going to depend on the sensors we are able to fit on the T-31 to control both the 57mm and 40mm. Can we afford a level of sophistication that allows these weapons to achieve their advertised potential? The Bofors 40 and 57mm come optionally fitted with an on-mount TV camera and muzzle velo...
by NickC
01 Oct 2019, 10:12
Forum: Royal Navy
Topic: Royal Navy Gunnery Discussion
Replies: 184
Views: 13367
Location: United Kingdom

Re: Royal Navy Gunnery Discussion

But we will have 2 x Bofors 40 MK 4 on Arrowhead whereas IvH has one Millennium 35. 2 x 9.75 kg = 19.5 kg, plus the advantage of having two guns rather than one is that they can engage two different target simultaneously and at approx twice the range of the 30mm DS30M we currently mount on the T23....
by NickC
30 Sep 2019, 16:42
Forum: Royal Navy
Topic: Current & Future Escorts - General Discussion
Replies: 10706
Views: 662316
Location: United Kingdom

Re: Current & Future Escorts - General Discussion

Thales Nederland were competing against Saab for the Finnish radar contract for the Pohjanmaa/Squdron 2020 3,900t class 'corvettes', ~£290M per ship. Thales offer was with the Sea Master 400 S-band radar with 'AESA 2', four fixed panel array version of the rotating NS100 to be installed on T31, inte...
by NickC
29 Sep 2019, 14:35
Forum: Royal Navy
Topic: Current & Future Escorts - General Discussion
Replies: 10706
Views: 662316
Location: United Kingdom

Re: Current & Future Escorts - General Discussion

The ultimate Phalanx replacement will be a laser based system. I have no problem with this but until then Phalanx will keep going There is no reason to chose the 40mm over the 57mm which is superior in every way - put it on the Rivers and future MH(P)Cs - but the T45s and T31s should be 127mm. Ment...
by NickC
29 Sep 2019, 12:46
Forum: Royal Navy
Topic: Current & Future Escorts - General Discussion
Replies: 10706
Views: 662316
Location: United Kingdom

Re: Current & Future Escorts - General Discussion

Should have mentioned no helicopter flight deck/hanger as well as the limited CIWS. https://corporalfrisk.files.wordpress.com/2019/09/laivue2020_kaksialusta_20190204_fullhd.jpg?w=640 the image clearly shows how the CIWS has been traded for a helo deck+ hangar ... the design grew quite a bit (may no...
by NickC
28 Sep 2019, 15:30
Forum: Royal Navy
Topic: Current & Future Escorts - General Discussion
Replies: 10706
Views: 662316
Location: United Kingdom

Re: Current & Future Escorts - General Discussion

Should have mentioned no helicopter flight deck/hanger as well as the limited CIWS.
by NickC
28 Sep 2019, 15:22
Forum: Royal Navy
Topic: Current & Future Escorts - General Discussion
Replies: 10706
Views: 662316
Location: United Kingdom

Re: Current & Future Escorts - General Discussion

Looking at the new Finnish Pohjanmaa four class 'corvettes' in build ~Euro 1.3B/£1.15B/4 = ~£288M each (triggered by contract award to Saab Thursday). Compared to T31 Pohjanmaa budget approx 15% higher if comparing apples apples figures and with no detailed breakdown could be questionable, A shorter...

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