Originally posted by F4UDOA
You can't compare the BF109G10/K4. Both of those A/C were 1945 and were built in very small numbers with limited amounts of fuel.
G-10 and K-4 production started in August and September 1944. First ones were received in early October by the units, 174 of them fresh from the factory, and first non-combat losses also happened in October (11 in total). First combat losses happened in November, probably on the 2nd Nov big air battle.
About 2600 G-10s and 1700 K-4s were produced until 1945
Total 4300 - as many as all the Spit IXLF produced in years. You may even add the G-6 and G-14 /AS types... those were practically identical in performance as G-10.. and were built in fairly large numbers (well over 1000). They also saw service a lot earlier than those two - from beginning 1944.
The following units used the 109 K-4:
III. / JG 1; II. / JG 2 ; III. / JG 3 ; I. / JG 4 ; III. / JG 4, IV. / JG 4, II. / JG 11,III. / JG 26,Stab / JG 27,I. / JG 27,II. / JG 27,,III. / JG 27,IV. / JG 27,III. / JG 51,II. / JG 52,III. / JG 52,Stab / JG 53,II. / JG 53,III. / JG 53,IV. / JG 53,I. / JG 77,III. / JG 77,I. / NJG 11,II. / KG(J) 6,Stab / KG(J) 27,I. / KG(J) 27,II. / KG(J) 27,JG 101,101. Puma *(Hungarian),150. Gruppo (Italian).
*Not sure about the 101st Puma, there only anecdotal evidence
I also have a detailed breakup of the number of Bf 109s with the LW units in end of January 1945. I couldn`t find it, but I clearly remember that every 4th (25%) Bf 109s with the first line units was a K-4, 314 in total. Further 30% G-10s. So about half of the 109s force was either a K or a G-10... The rest were G-14s. G-6s were almost absent, most of them being in second line reserve units, probably only used for training.
They were not rare, in fact, the K-4 is the only plane from the "ultimate set", with the exception of the La-7, that saw action in really large numbers.