Sampson Radar Type 1045

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Little h
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Sampson Radar Type 1045

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From:-

NavyLookout on Twitter
@NavyLookout
12:35 PM - 2 Mar 2019

Refurbished Sampson Radar antenna delivered to Portsmouth yesterday from BAE Systems Cowes Radar Integration Test Facility, Isle of Wight

(for HMS Dauntless currently in major refit)

Photo: S Wenham
x - D0rjwEHXQAEEerO.jpg
WOT!! no whiskers ;)
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Little h
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Little h
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Re: Sampson Radar Type 1045

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Crossed Roller Bearings


Published: 03/10/2003

The radar housing on the Royal navy’s new Type 45 Destroyer’s will rotate on Timken bearings. The radar – Samson – rotates at 30 revs/min on an innovative bearing setup which US-based The Timken Company assisted in developing
Author: Andrew Allcock
Screenshot (4206).png


Source; Machinery

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AIA: New Stealth-Ship Radar Rotates on Bearings

November 1, 2003


The British Royal Navy uses a multifunction radar developed by Alenia Marconi Systems Ltd. Timken Co. crossed roller bearings are used in the turning base of the radar systems.

The British Royal Navy will be using Timken Co. (Canton, OH) crossed roller bearings in the turning base of the radar systems on its new Type 45 destroyer.

This new radar system is encased in a large, spherical housing atop the vessel's foremast. Inside the housing is a next-generation, multifunction radar developed by Alenia Marconi Systems Ltd. (AMS, Rome). The unit rotates at 30 rpm on a bearing setup that Timken helped develop.

--------------------------

The bearings in the turning base have two sets of races and rollers brought together at right angles to each other. This crossed roller design increases the load-carrying capacity of the bearing, but keeps the bearing lightweight. Because the radar unit is located high above the waves, it was not only important to reduce total weight, but also to ensure durability. The bearings must also endure extreme temperature conditions, from polar winters to tropical summers.

Other design specifications of the bearing improve interaction with the radar's carbon fiber housing, and additional machining allows the bearing to function as an integral turning base for Sampson. Special seals also were created to protect the bearing from the harsh environmental conditions.

In helping AMS to determine the optimal bearing configuration, Timken engineers used SYSx, a proprietary engineering software tool for calculating and predicting the performance of bearings, gears and housings used in a wide range of complex applications.

Source; Assembly

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Technology you can use
By: DN Staff Automation & Motion Control Aerospace
September 13, 2004



Crossed-rollers strengthen largest naval radar bearing

The bearing of the rotating radar antenna atop the foremast of the Royal Navy's latest Daring Class destroyer must resist shock and overturn loads that would topple the unit and function reliably in a salt-spray environment.

Engineers at radar systems manufacturer Alenia Marconi Systems Ltd. selected a crossed-roller bearing designed in cooperation with The Timken Co. to support and turn the SAMPSON multi-function radar (shown below). At 3m in diameter, it is one-third larger than previous bearings of this type manufactured by Timken, says Tom Baker, chief engineer for process industries at Timken.

The crossed-roller configuration is essentially two sets of rollers in a common race. The rollers alternate with their axes at right angles to each other. This layout results in an overall bearing height that is marginally greater than that of a single bearing housing. But the load-carrying centers of each of the races (the point where the roller axes intersect the vertical axis through the center of the race) have a large "bearing spread," substantially taller than the physical depth of the bearing, which increases resistance to overturning moments.

Source; DesignNews

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OOPS!!!

2012 D32-HMS-Daring-018 sampson bearing leak seaforces.org COPY (2).jpg
120306-N-ZI635-608 HMS Daring (D32) U.S. Navy photo by Mass Comms Spec Seaman George M. Bell 6th March 2012 wiki (2).jpg


In fairness; information relating to a refurbished (or replacement) bearing has been provided for one of the Type 45's - but that information was probably posted on the WNSF.
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Little h
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ivorthediver
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Location: Cambridge Shore Battery

Re: Sampson Radar Type 1045

Unread post by ivorthediver »

Yes Harry ....I remember those posts you made in your usual thorough manner , so thanks for the update and for all the facts you labour to lay before us and try hard to educate us on these items that others[ like me] take as read without looking any further , so well done you for keeping us on track .
"What Ever Floats your Boat"
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Little h
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Re: Sampson Radar Type 1045

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ivorthediver wrote: Tue Mar 05, 2019 8:44 pm Yes Harry ....I remember those posts you made in your usual thorough manner , so thanks for the update and for all the facts you labour to lay before us and try hard to educate us on these items that others[ like me] take as read without looking any further , so well done you for keeping us on track .
Thanks Ivor, I guess you will like this excerpt then ;) .......

The first design of the Sampson radar drive system comprised a small electric motor driving the rotating ball via an all plastic gearbox housed in the upper superstructure, Photo 10. This in fact proved to be far too noisy and heavy, its weight making the model unstable because of its position high above the waterline.

The solution was to lower the drive system well below the main deck line on what could be called a sub-chassis mounted on pillars beneath the deck and also changing the system to belt drive. These belts came from some old tape recording systems and are still available from radio repair and component retailers. The new completed belt drive system for the Sampson radar and forward gun is shown in Photo 11 and Photo 12 is of the after radar rotation system.

398268 photo 11.jpg
398269 photo 12.jpg

Source of excerpt and two photographs here



Reads as if it were a case study report on the real T45 construction. oh; and no lubricant leaks :)
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Little h
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ivorthediver
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Re: Sampson Radar Type 1045

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Ahhhhhh trial and error , my old stamping ground .......if at first you don't Suck Seed throw it away and try another approach ;)
"What Ever Floats your Boat"
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Little h
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Re: Sampson Radar Type 1045

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, sampson-1540x800.jpg


IT LOOKS like Sputnik and for the navy it marks the same leap forward that the world's first satellite meant half a century ago. Portsmouth's sailors will be protected like none before as the world's most advanced radar was unveiled for the next-generation fleet. On top of the city's future Type 45 destroyers will sit Sampson, a 14ft ball of tricks which will scour the skies for a threat to Britain's sailors... then smash it. In fact, it doesn't deal with just one threat but up to 600 aircraft and missiles at once then picks out the most dangerous one and tackles it. Sailors could be written out of the missile-firing script. But the navy fears computer error as much as it does human error 99 per cent of the time it will be a sailor's finger on the trigger, acting on Sampson's advice.

The navy has great faith in Sampson. It has to, for the destroyer's main task will be to wipe out the enemy's aerial threat. Whitehall has pumped 150m into radar designers Alenia Marconi on the Isle of Wight to provide the first four Sampsons for HMS Daring and her sisters.
, 11567555074_4739b5a154_b reddit.jpg
, RS49594_Combat-Systems_edit-lpr.jpg

The facility on Portsdown Hill - a Type 45 look-a-like building; Maritime Integration and Support Centre (MISC), owned and run by BAE SYSTEMS; in QinetiQ's Land Based Test Site.

In the coming months, the Sputnik ball the spikes are actually lightning conductors will be fitted to trial masts on Portsdown Hill and at Cowes, as boffins test Sampson ahead of putting into the destroyers which join the fleet in 2007. Brigadier Keith Prentice, who is in charge of the Type 45 programme, said: 'It's eye-watering what this radar can do it will not be swamped by information. It is orders of magnitude better than its predecessors.' Alenia's Les Gregory, who is overseeing the Sampson project, on which colleagues have toiled for the past two decades, said the radar pushed technology to the limits. He said: 'It decides what to do and when to do it. It searches the horizon, picks out the greatest threat and decides how long to spend dealing with it.'

Source of text; The News - Portsmouth Published: 12:45 Friday 27 September 2002 - Yes - a long time ago but still an interesting article. Also, it is the first time I have seen in print reference to the lightning conductors other than on the WNSF where having asked the question, a forum member 'Omanip' I think it was advised that they were simply lightning conductors


1st attachment from MDAA (Missile Defense Advisory Alliance); article titled 'SAMPSON Radar' June 1, 2018

2nd attachment from Naval-Technology
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Last edited by Little h on Thu Mar 07, 2019 11:18 pm, edited 1 time in total.
Little h
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Little h
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Re: Sampson Radar Type 1045

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Remember the Longbow Trials Barge (Formerly “Ocean Servant II” then “Dynamic Servant”):-

, Longbow-Trials-Barge.jpg
Source; ThinkDefence.co.uk


_______________________

The Disposal of Longbow Trials Barge

Disposal of Longbow Trials Barge (12 Page PDF)

Complete with history and images. Towed away for scrap on the 2 August 2012 - arrived in Turkey on the 24 August 2012.

______________________


Lowering of a Sampson Radar to a 'mast' at one of the shore sites
, Screenshot (4219)..jpg


A Sampson Radar installed on a 'mast' at on of the shore sites
, Screenshot (4218)..jpg


A Sampson radar being lowered to a scaffold covered mast - looks to have a similarity to Duncan's (D37) mast.
, lowering Sampson on to a mast- (Daring D32 installed April 2007).jpg
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Last edited by Little h on Thu Mar 07, 2019 11:42 pm, edited 3 times in total.
Little h
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Little h
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Re: Sampson Radar Type 1045

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Foremast for HMS Daring (D32) in process of being loaded onto a barge for transit to the Clyde shipbuilders.

, Daring D32 Screenshot (2944).jpg


Daring (D32) was subsequently adorned with her Sampson radar - the installation being completed on this mast in April 2007
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Little h
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Re: Sampson Radar Type 1045

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Little h wrote: Thu Mar 07, 2019 11:16 pm Remember the Longbow Trials Barge (Formerly “Ocean Servant II” then “Dynamic Servant”):-


, Longbow-Trials-Barge.jpg

Source; ThinkDefence.co.uk


_______________________

The Disposal of Longbow Trials Barge

Disposal of Longbow Trials Barge (12 Page PDF)

Complete with history and images. Towed away for scrap on the 2 August 2012 - arrived in Turkey on the 24 August 2012.

______________________


Lowering of a Sampson Radar to a 'mast' at one of the shore sites

, Screenshot (4219)..jpg



A Sampson Radar installed on a 'mast' at on of the shore sites

, Screenshot (4218)..jpg



A Sampson radar being lowered to a scaffold covered mast - looks to have a similarity to Duncan's (D37) mast.

, lowering Sampson on to a mast- (Daring D32 installed April 2007).jpg
Little h
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Little h
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Re: Sampson Radar Type 1045

Unread post by Little h »

Little h wrote: Thu Mar 07, 2019 11:16 pm
A Sampson radar being lowered to a scaffold covered mast - looks to have a similarity to Duncan's (D37) mast.
Compare the two photographs; I still contend that this is Duncan (D37) - she is the only type 45 with these appendages!!

Sampson being lowered for installation on the foremast.
, lowering Sampson on to a mast- (Daring D32 installed April 2007)..jpg



Sampson installed on the foremast - scaffolding in process of removal
, HMS Duncan D37 stephen wagstaff 6056976908_3e92b7a52d_o (copy).jpg

Attribution
2nd attachment is derived from an original by Stephen Wagstaff's photostream on Flickr
( highly recommended - open the link to view his photostream & checkout the various galleries)
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