Hi Kawanishi K100.
K100 did not have G number. Estimeted performance was excellent as follows. Detail design began at the day, but Mamori-kai(護-改) engine cancelled.
Span : 21.60m, Length : 15.00m, Height : 6.07m, Wing area : 64.0sqm, Aspect ratio : 7.3, Dihedral 0°(central wing)/5°(outer wing), Sweep back angle : 30°!?, Empty weight : 8,550kg, Gross weight : 13,500kg~16,000kg
Engine : Nakajima Mamori-kai aircooling 18 cylinders ×2, Take off power : 2,300hp(each), propeller : metal constant speed 4 blades, diameter : 4.50m, Fuel : 12,800L, Oil : 240L, Maximum speed : 327kt(606km/h)/7,600m, Landing speed : 78kt(145km/h), Climb to 4,000m~6′16″, Service ceiling : 11,200m, Range : 3,000nm(5,556km)/at cruising speed 200kt(370km/h), Armaments : 20mm×3, Torpedo 800kg×1, Crew : 4(inline position)
Source : ENCYCLOPEDIA OF JAPANESE AIRCRAFT 1900-1945 VOL.3 KAWANISHI/HIROSHO CONTENTS
Tail turret was remote controlled?