Known as the Model K-240 by Kaman. 
List of Operators of Kaman HTK-1 / TH-43 | |
| From | Organisation with model HTK-1 / TH-43 | |||||
| 1951 |
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| Construction Numbers on database of HTK-1 / TH-43 | ||||||
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Construction Numbers | Help Us | |
| C/N | Year | History | |
| 4-1 | 1951 |  128653 : USN; via Joe Baugher | |
| 4-4 | 128656 : to civil register as N1269V;via Joe Baugher N1269V : Reg issued by Jun 1957, cancelled in Sep 1960. | ||
| 4-8 | 128660 : USN;via Joe Baugher | ||
| 4-9 | 129300 : USN; via Joe Baugher | ||
| 4-11 | 129302 : USN; to N74017; via Joe Baugher N74017 : to US Civil Register. | ||
| 4-13 | 129304 : Del US Navy; to N6060C N6060C : to US CIv Reg. ex USN 129304. | ||
| 4-22 | 1953 | 129313 : Kaman HTK-1 c/n 4-22, ff:24Apr53; del USN as HTK-1 1293+ purchased from civilian source, unk; in storage for fut+ N6062C : to civil registry reg US as N6062C, unk. N6062C reg cancelled Oct 2013. : preserved on display at USNAS Tillamook Air Museum Oreg+ | |
| 4-26 | 129317 : USN; to N7801B; via Joe Baugher N7801B : N7801B; registration withdrawn 28 Feb 2013 |