Author Topic: Frigate Acquisition Project: Air / Surface Search Radar  (Read 2850 times)

adroth

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Re: Frigate Acquisition Project: Air / Surface Search Radar
« Reply #15 on: April 18, 2018, 08:29:02 AM »
Let's get the conspiracy theory out of the way. Hensoldt is a major European defense firm. They are unlikely to be in cahoots with anyone to put out fake numbers for a contract with just two radars. It's their reputation on the line.

Having said that, the badmouthing of their products in some quarters may have prompted Hensoldt to make this belated update to clear the air about the performance of their system.

It is in their interest to quash any rumors that may circulate in the regular media or social media, lest it interfere with any ongoing or potential sales.

LionFlyer

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Re: Frigate Acquisition Project: Air / Surface Search Radar
« Reply #16 on: April 18, 2018, 08:37:28 AM »
And given that the TRS-3D is in use by the USN (LCS) and USCG, it is probably a matter of a few emails and phone calls for the Philippines to verify easily.

mamiyapis

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Re: Frigate Acquisition Project: Air / Surface Search Radar
« Reply #17 on: April 18, 2018, 09:52:36 AM »
I am pretty sure the whole fiasco has probably reached Hensoldt's attention by now. We are actually generating huge traffic on FB alone regarding the FAP.

What has always piqued my attention and probably the update on their part, is the vague spec stating "Handling >400 tracks per 360 independent of air and surface targer mix". This could actually mean that depending on antenna rotation speed, the TRS-3D is actually actively adding 400 tracks to it's output per full antenna rotation. So depending on the mode it is in, the system could track far more than even the updated ">750 tracks" tracking 3D capacity... hence the greater than symbol even on the updated numbers.

adroth

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Re: Frigate Acquisition Project: Air / Surface Search Radar
« Reply #18 on: April 18, 2018, 10:19:05 AM »
This just goes to show . . . open-source spec sheets need to be taken with a grain of salt. It is not in a vendor's interest to expose the upper limits of what they can do. It is also not in the vendor's CUSTOMER'S interest to expose the limits of what they bought can do. In an age where countries recognize the value of stealth, radar cross-section resolution is a closely guarded secret. So satisfaction, or non-satisfaction of a requirement rightfully should only be between the vendor and the government customer.

As person who actually has to deal with spec sheets as part of his day job . . .

. . . this is very tricky matter to base an argument upon.

El_Filibusterismo1978

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Re: Frigate Acquisition Project: Air / Surface Search Radar
« Reply #19 on: April 18, 2018, 07:08:42 PM »
few more days to go before the steel-cutting.. hope we could see the render of the complete fit out of the PN frigates..

LionFlyer

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Re: Frigate Acquisition Project: Air / Surface Search Radar
« Reply #20 on: April 20, 2018, 08:32:26 PM »
What has always piqued my attention and probably the update on their part, is the vague spec stating "Handling >400 tracks per 360 independent of air and surface targer mix". This could actually mean that depending on antenna rotation speed, the TRS-3D is actually actively adding 400 tracks to it's output per full antenna rotation. So depending on the mode it is in, the system could track far more than even the updated ">750 tracks" tracking 3D capacity... hence the greater than symbol even on the updated numbers.
It doesn't work like this. The statement merely describes how many tracks are being managed per antenna rotation. Tracks initiated in the scan are maintained (new vector, speed, or dropped) in the next scan.

Here's a good description on how multi-function radars work.
http://discovery.ucl.ac.uk/1317909/1/299280.pdf

mamiyapis

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Re: Frigate Acquisition Project: Air / Surface Search Radar
« Reply #21 on: April 25, 2018, 02:41:32 PM »
Ah thanks for clarifying that LionFlyer. Well the FB groups have discovered another revision to the Hensoldt brochure that now shows 750 tracks in all mentions of 3D tracking capacity.

It means the different memtions of 400 and 750 tracks was just a clerical error.

LionFlyer

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Re: Frigate Acquisition Project: Air / Surface Search Radar
« Reply #22 on: April 26, 2018, 05:15:55 AM »
It is not likely to be a clerical error.