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Dauntless SDB question



 
 
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  #1  
Old May 18th 09, 09:01 PM posted to alt.binaries.pictures.aviation
John Szalay
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Posts: 518
Default Dauntless SDB question

"Beachcomber" wrote in
:

Right now the National Naval Aviation Museum in Pensacola is restoring
two Dauntless SDBs that were recovered from Lake Michigan.
One is in parts and being prepared for the restoration. I've taken a
bunch of pictures of it. I have a question about antennas under the
wings. Both wings have what look like tv antennas, df antennas or
simple yagis. It doesn't look like the antennas rotate. Are they DF
or navigational antennas? Who wants to be first with the correct
answer? Oh, it's not an exam to be graded. I sure don't know the
answer and won't be grading the replies.

Here's a picture of one of the two antennas, Tom




MAY be ASB longwave radar

http://www.vectorsite.net/avsbd.html

the 58 cm (515 MHz) "ASB", originally "XAT", which was fitted to the
Grumman TBF Avenger torpedo bomber. Like ASE, it featured a Yagi antenna
fitted under each wing, skewed 7.5 degrees from the centerline, and
presumably used lobe-switching. Peak power was 200 kW and pulse width
was 2 microseconds. It was the first operational US carrier-based
aircraft to be fitted with radar. The ASB was very popular, with 26,000
units built.

http://www.vectorsite.net/ttwiz_04.html


  #2  
Old May 22nd 09, 02:45 AM posted to alt.binaries.pictures.aviation
Marty[_3_]
external usenet poster
 
Posts: 10
Default Dauntless SDB question

Yagi radar antennas!

"John Szalay" wrote in message
42...
"Beachcomber" wrote in
:

Right now the National Naval Aviation Museum in Pensacola is restoring
two Dauntless SDBs that were recovered from Lake Michigan.
One is in parts and being prepared for the restoration. I've taken a
bunch of pictures of it. I have a question about antennas under the
wings. Both wings have what look like tv antennas, df antennas or
simple yagis. It doesn't look like the antennas rotate. Are they DF
or navigational antennas? Who wants to be first with the correct
answer? Oh, it's not an exam to be graded. I sure don't know the
answer and won't be grading the replies.

Here's a picture of one of the two antennas, Tom




MAY be ASB longwave radar

http://www.vectorsite.net/avsbd.html

the 58 cm (515 MHz) "ASB", originally "XAT", which was fitted to the
Grumman TBF Avenger torpedo bomber. Like ASE, it featured a Yagi antenna
fitted under each wing, skewed 7.5 degrees from the centerline, and
presumably used lobe-switching. Peak power was 200 kW and pulse width
was 2 microseconds. It was the first operational US carrier-based
aircraft to be fitted with radar. The ASB was very popular, with 26,000
units built.

http://www.vectorsite.net/ttwiz_04.html




 




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