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 Forum: Personal Designs  Topic: Notional 9000tFL USN FFG with THE POWER OF THE ATOM

r3mu511
 Post subject: Re: Notional 9000tFL USN FFG with THE POWER OF THE ATOM Posted: July 10th, 2016, 6:01 am 

Replies: 134
Views: 103043


^combo radar antennas is something that appears doable (at least in back-to-back mounting configuration) as there are examples such as back-to-back same frequency phased arrays: eg. UK Sampson, back-to-back same freq planar arrays: eg. US spq9b, back-to-back mixed freq non-phased arrays: eg. UK type...

 Forum: Personal Designs  Topic: Notional 9000tFL USN FFG with THE POWER OF THE ATOM

r3mu511
 Post subject: Re: Notional 9000tFL USN FFG with THE POWER OF THE ATOM Posted: July 5th, 2016, 5:13 am 

Replies: 134
Views: 103043


After deep thought, I have abandoned the MEADS-based L-band family. 18' AMDR-S SPY+20dB is pretty much awesome. fwiw, IRL raytheon's AMDR-S 18-foot array (ie. composed of 69 RMA/radar-modular-assemblies) actually gives an approx +25 dB improvement over spy-1 (ie. an approx 316x sensitivity improvem...

 Forum: Personal Designs  Topic: Late 70s-80s Frigate design

r3mu511
 Post subject: Re: Late 70s-80s Frigate design Posted: July 2nd, 2016, 12:58 pm 

Replies: 68
Views: 42250


^doesn't the 40mm mask the crotale's firing arc towards the rear horizon? crotale's a CLOS system so it needs to point (and shoot) directly towards it's target, so it seems the 40mm would mask a low flying target in the rear arc... maybe put the croatale on a small platform so it's not masked by the...

 Forum: Personal Designs  Topic: Corvette

r3mu511
 Post subject: Re: Corvette Posted: June 21st, 2016, 3:02 am 

Replies: 34
Views: 21389


I like the version w/ the 5.5" spy-1k arrays...

 Forum: Personal Designs  Topic: Corvette

r3mu511
 Post subject: Re: Corvette Posted: June 18th, 2016, 1:02 am 

Replies: 34
Views: 21389


^from the size and shape of the array panel in the pic I think @heuhen actually meant that to be seawatcher-100 (the x-band surface surveillance set) rather than seamaster-400... otherwise, if that really was meant to be seamaster, there might be rf interference issues w/ both the seamaster and smar...

 Forum: Personal Designs  Topic: Corvette

r3mu511
 Post subject: Re: Corvette Posted: June 18th, 2016, 12:29 am 

Replies: 34
Views: 21389


^nice, looks like smart-s-mk2 and stir-24 fore and aft, you'll need to add something to represent the CEC USG-2 antenna since the corvette will be doing CEC forward-pass w/ the frigate... something that'll look like: https://www.eng.umd.edu/html/ihof/inductees/inductpix/krill-3.png (upper left in pi...

 Forum: Personal Designs  Topic: Late 70s-80s Frigate design

r3mu511
 Post subject: Re: Late 70s-80s Frigate design Posted: June 17th, 2016, 5:02 pm 

Replies: 68
Views: 42250


^that 13 km value seems close enough to friedman's 11 km value...

fwiw, for -7M, friedman gives ~26 km...

 Forum: Personal Designs  Topic: Late 70s-80s Frigate design

r3mu511
 Post subject: Re: Late 70s-80s Frigate design Posted: June 17th, 2016, 4:37 pm 

Replies: 68
Views: 42250


^is that for the -7H version ?

-7H production began in 1973 (data from designation-systems.net), so if flight international is giving performance figures for the 80s, that might be a later mark perhaps ?

 Forum: Personal Designs  Topic: Corvette

r3mu511
 Post subject: Re: Corvette Posted: June 17th, 2016, 4:27 pm 

Replies: 34
Views: 21389


b/w = between
w/c = which
w/ = with
w/in = within
iow = in other words
otoh = on the other hand

 Forum: Personal Designs  Topic: Corvette

r3mu511
 Post subject: Re: Corvette Posted: June 17th, 2016, 4:11 pm 

Replies: 34
Views: 21389


^both engage-on-remote and forward-pass require CEC... what @heuhen described sounds like engage-on-remote if the frigate fires when the target is not w/in the rf horizon of the frigate (meaning the frigate doesn't detect the target w/ it's spy-1f)... otoh, if the target moves w/in the rf horizon of...
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