Was snooping around the Net and found this. Thought you numbers guys would like it.
The aircraft in Bold were all common late model aircraft used until the end of the war. More than a few flying missions were just to pick up wreckage. These numbers are probably NOT exact.

The following was done recently for a museum.

1 205 was destroyed (Air America)

270 AH-1G were destroyed
1 AH-1J was destroyed

1 BELL was destroyed
14 CH-21C were destroyed
2 CH-34 were destroyed
1 CH-37B was destroyed
1 CH-37C was destroyed
7 CH-3C were destroyed
7 CH-3E were destroyed

94 CH-46A were destroyed
58 CH-46D were destroyed

83 CH-47A were destroyed
20 CH-47B were destroyed
29 CH-47C were destroyed

12 CH-53A were destroyed
2 CH-53C were destroyed
9 CH-53D were destroyed

9 CH-54A were destroyed

2 H-37A were destroyed
21 HH-3E were destroyed
7 HH-43B were destroyed
6 HH-43F were destroyed

2 HH-53B were destroyed
7 HH-53C were destroyed

147 OH-13S were destroyed

93 OH-23G were destroyed
45 OH-58A were destroyed
842 OH-6A were destroyed

3 SH-34G were destroyed
8 SH-3A were destroyed
3 SIOUX were destroyed

60 UH-1 were destroyed
1 UH-1A was destroyed
357 UH-1B were destroyed
365 UH-1C were destroyed
886 UH-1D were destroyed
90 UH-1E were destroyed
18 UH-1F were destroyed
1313 UH-1H were destroyed
1 UH-1N was destroyed

6 UH-2A were destroyed
6 UH-2B were destroyed
176 UH-34D were destroyed

Total helicopters destroyed in the Vietnam War was 5,086 out of 11,827

www.vhpa.org/heliloss.pdf

I'd also like to know how many of those were dumped over the side of the carrier ship into the ocean?

Interesting.

Man I have several Squadron/Signal books on helicopters in Vietnam- Those guys were nuts. In a good way.

USMC Helo Losses  (1962-1973)

along with several friends......