Shmertspionem
Topic Author
Posts: 430
Joined: Tue Aug 22, 2006 1:27 pm

ID Help With P-8A Poseidon Please

Sat Mar 06, 2010 3:50 pm

2nd photo down
http://kr.blog.yahoo.com/shinecommerce/27376.html?p=5&t=2

Could someone please identify what this yellow contraption being fitted on the P-8's nose is? It looks like no radar I've seen and if it is a radar why's it shaped so weird? About the only thing i can make out that the Korean text thinks its the APY-10 but then what's the radar that goes in the bulbous hump below the plane? Thanks in Advance
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11Bravo
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Joined: Tue Feb 15, 2005 8:54 am

RE: ID Help With P-8A Poseidon Please

Sat Mar 06, 2010 3:57 pm

That would be the APY-10 Multi-Mission Maritime and Overland Surveillance Radar.

http://www.raytheon.com/businesses/s...s/sas/documents/asset/apy10_ds.pdf
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LMP737
Posts: 4922
Joined: Wed May 08, 2002 4:06 pm

RE: ID Help With P-8A Poseidon Please

Sat Mar 06, 2010 4:07 pm

Quoting Shmertspionem (Thread starter):
Could someone please identify what this yellow contraption being fitted on the P-8's nose is? It looks like no radar I've seen and if it is a radar why's it shaped so weird? About the only thing i can make out that the Korean text thinks its the APY-10 but then what's the radar that goes in the bulbous hump below the plane? Thanks in Advance

That yellow ball is the transmitter for the radar. It may not look what most of us think a radar should look like but it is.

http://www.raytheon.com/businesses/s...s/sas/documents/asset/apy10_ds.pdf


I'm not sure what the hump is on the bottom of the aircraft.
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Shmertspionem
Topic Author
Posts: 430
Joined: Tue Aug 22, 2006 1:27 pm

RE: ID Help With P-8A Poseidon Please

Mon Mar 08, 2010 4:15 am

But then

1) isn't that a complete waste of the 737's large nose aperture given that Physics dictates the bigger the array the more the signal throw?
2) this provides only 180 degree surveillance - who surveys the rear 180 degrees?
3) What's the hump on the belly?
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Stealthz
Posts: 5549
Joined: Wed Feb 02, 2005 11:43 am

RE: ID Help With P-8A Poseidon Please

Mon Mar 08, 2010 5:11 am

Quoting Shmertspionem (Reply 3):
1) isn't that a complete waste of the 737's large nose aperture given that Physics dictates the bigger the array the more the signal throw?

I am no expert but the antenna is stabilised in pitch & roll, 25deg in roll and from what I can deterrmine the roll axis is off centre above the antenna so it requires room to swing.
A second consideration perhaps, as the APY-10 is a development of the APS-137 the size constraints of that system may have played a part.

Cheers

PS, A side note, I wonder when the Aust Govt is going to announce a purchase of some P-8 for the RAAF?

[Edited 2010-03-07 21:13:55]
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