Shortround6
Major General
Well, what you can accomplish with a 650-700hp engine and what you can accomplish with a 2000hp engine are rather different things. While the 109 may have been intended for the DB 600 series from the start, Willy had to win the contract using the Jumo 210 and provide usable fighters for the time (mid 30s) for several years using the Jumo 210. If he HAD designed a larger plane to take better advantage of an improved DB 600 series engine (that won't show up for 4-6 years) he very well could have lost the initial production contract to Heinkel and been out of business regardless of his personnel philosophy of fighter design.
With the 700-1000hp engines available (or promised near term) in 1935-37 nobody was designing large single engine fighters and all "long range fighters" were twins.
With the 700-1000hp engines available (or promised near term) in 1935-37 nobody was designing large single engine fighters and all "long range fighters" were twins.