Suhiir's Revised USMC OOB #13

[thatguy96]

On 17 August 1964, HMX-1 is directed to begin work on what would become the TK-1 kit. The kit was developed it 2 weeks and a demo flight firing first occurred on 8 September 1964. The first kits arrive in Vietnam in November 1964. The TK-1 was officially canned in April 1965. There's probably some amount of overlap between this decision and their actual removal from the field, but the armed UH-34D was apparently not well received, it being decidedly underpowered for the role.

The fact that the TK-2 kits on the UH-1E appear in May 1965 mean that you could probably just exchange one for the other.