Land-based version of the Kawanishi H8K flying boat

In Rene Francilion's 1970 book on Japanese aircraft of WW2, the Kawanishi K-100 medium bomber project is listed as bearing the IJN designation G9K. However, the K-100 was canceled along with the G7M in 1942, and G8N was allocated in 1943, so Francillion's claim that the K-100 was designated G9K is erroneous. In a July 1981 issue of "Airpower", Robert Mikesh stated that the Kawanishi TB heavy bomber bore the G9K designation, but the TB was an IJA design and not an IJN proposal, so the association of G9K with the Kawanishi TB project may have stemmed from a typo for the TB's internal designation, KX-9. Given that there is evidence that the IJN top brass floated the possibility of a land-based variant of the H8K flying boat (Allied code name Emily), it is probable that Kawanishi proposed a land-based bomber based on the H8K under the designation G9K as a back-up to the G8N Tenzan four-engine bomber in the event that the G8N failed.