So, there was this thread the other day about the rockets on Typhoons, and someone posted a link in it to another website. I scrolled down this page, and found a picture of a B-25 being loaded up with several 5-inch rockets. I searched this on Google recently, and found several other results confirming that these rockets were used by B-25Hs during the war.
Scroll down on this one, and it says that B-25Hs could carry 8x 5-inch rockets on underwing hardpoints:
http://www.xs4all.nl/~fbonne/warbirds/ww2htmls/nortb25.htmlIf you scroll down on this website, it also states that B-25Hs could carry: "Eight 5-inch rockets under the outer wing panels.":
http://www.uboat.net/allies/aircraft/b25.htmThis website also says that B-25Hs could carry HVAR rockets:
http://everything2.com/node/1392656This website also says that the B-25H could be loaded with: "Rockets: up to 8 x 5 in (12.7mm)":
http://www.zenoswarbirdvideos.com/B-25.htmlHere's the post from which I got the original website and idea for this topic:
Here's the website itself:
http://www.tarrif.net/wwii/guides/a2g_rockets_2.htmHere's the picture of the rockets being loaded onto a B-25 (from that website, you need to scroll down to see it):

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Yossarian
EDIT: W000TT 500th post!!!!!
EDIT 2: And yes, this is partially related to my screen name