Deleted member 1487
The Ta-154 was to be powered by a souped up late model Jumo 211R that never got the kinks worked out, which is why they gave it the 213.Not in the term of performance, but in term of availability. Let's recall that Ta 154 was to be powered by Jumo 211 engines at 1st, and those were not at substantial disadvantage vs. DB 601/605 under 5-6 km. The HS 21Y will provide power between Jumo 210 and DB 601 (340-350 mph?), while being light weight, and can help bridge the problems of available DB engines in 1939-40.
The low level power isn't really that great for sprints though for the Jumo, while the Hs is just under powered for an aircraft like the Fw187. There won't be a shortage of DB601s in 1939-40, because there will be fewer Fw187s than Bf110s due to entering production later than the Bf110 did.