He112 (v7) with DB600 specs

Not me :)
From what I can gather, the V7 was engined with DB 600A (sometimes referred as 600Aa - 'a' for 'ausland' - export). The 600A was outfitted with low-altitude drive for supercharger, thus probably not much of performance improvement over the examples oufitted with Jumo 210D or G.
 
Not me :)
From what I can gather, the V7 was engined with DB 600A (sometimes referred as 600Aa - 'a' for 'ausland' - export). The 600A was outfitted with low-altitude drive for supercharger, thus probably not much of performance improvement over the examples oufitted with Jumo 210D or G.
Thanks.
I'm considering the He112/DB600 as a possible fighter bomber, in which case better low/mid altitude performance would be useful.
But I've never seen actual performance data for this variant.
 
Was that the one with evaporative cooling?
No. That was the prototype for the He100.
Series He100D would have had radiators but the fighter was not adopted.
The DB600 was the earlier carburated version of the fuel injected DB601.
It also powered the He111B.
In a TL I have a much richer Portugal gets production rights for the DB600 engine, the He112 and the He111 in late 1936.
 
Not me :)
From what I can gather, the V7 was engined with DB 600A (sometimes referred as 600Aa - 'a' for 'ausland' - export). The 600A was outfitted with low-altitude drive for supercharger, thus probably not much of performance improvement over the examples oufitted with Jumo 210D or G.
With the DB600 the He112 is heavier by c130kg in engine weight alone, but it also gains c300HP.
It should be faster, but how much faster?
 
I probably have the data but will have to dig it out. My source would be William Greens 'Aircraft of the Second World War' the 10 volume set of books containing every aircraft used in WWII (well almost every one there were supposed to be more volumes that were never finished so the Bombers end with Germany and don't include countries alphabetically after that) The fighters are in vol 1-4, I think Germany is in Vol 1 I just need to dig it out.
 
I probably have the data but will have to dig it out. My source would be William Greens 'Aircraft of the Second World War' the 10 volume set of books containing every aircraft used in WWII (well almost every one there were supposed to be more volumes that were never finished so the Bombers end with Germany and don't include countries alphabetically after that) The fighters are in vol 1-4, I think Germany is in Vol 1 I just need to dig it out.
That book only has the data for the DB601Aa 1175HP powered He112V10.
the data he gives is 354mph at 12140 ft; 2.760 ftps climb rate; 715 m range and 31170 ft ceiling.
Good numbers, but the V7 flew earlier (1936) and suits my TL better since the Spanish Civil War makes a good starting point for a Portuguese military modernization program.
 
With the DB600 the He112 is heavier by c130kg in engine weight alone, but it also gains c300HP.
It should be faster, but how much faster?

As above - the gain is limited to the low altitude, where the air is thick. Thus the max speed figure will barely change, however the speed attained at low altitudes will indeed be greater. The DB 600C/D, let alone the G/H, with supercharger gearing set for higher altitudes, thus altitude power went up to 910 PS at 4000m. That is increase of some 30% over the best Jumo 210, the 210G. Produced from 1935/36 in Germany.

That book only has the data for the DB601Aa 1175HP powered He112V10.
the data he gives is 354mph at 12140 ft; 2.760 ftps climb rate; 715 m range and 31170 ft ceiling.
Good numbers, but the V7 flew earlier (1936) and suits my TL better since the Spanish Civil War makes a good starting point for a Portuguese military modernization program.

The DB 601A will make 1020 PS at 4-4.5 km, depending on sub-variant.
BTW - if your ALT Portugal is rich, why not just buy Merlin in late 1930s for the He 112?
 
As above - the gain is limited to the low altitude, where the air is thick. Thus the max speed figure will barely change, however the speed attained at low altitudes will indeed be greater. The DB 600C/D, let alone the G/H, with supercharger gearing set for higher altitudes, thus altitude power went up to 910 PS at 4000m. That is increase of some 30% over the best Jumo 210, the 210G. Produced from 1935/36 in Germany.



The DB 601A will make 1020 PS at 4-4.5 km, depending on sub-variant.
BTW - if your ALT Portugal is rich, why not just buy Merlin in late 1930s for the He 112?
The goal is to buy a manufacturing license.
Britain did sell a lot of Hurricanes in the late 30s, but not a manufacturing license for their Merlins. Heinkel was trying to sell a manufacturing license for the He112.
OTL Portugal tried to buy Spitfires and was offered Gladiators.
 
The goal is to buy a manufacturing license.
Britain did sell a lot of Hurricanes in the late 30s, but not a manufacturing license for their Merlins. Heinkel was trying to sell a manufacturing license for the He112.
OTL Portugal tried to buy Spitfires and was offered Gladiators.

Having a license to produce He 112 still does not mean you have a license for any engine, either of German origin or otherwise.

Buying Spitfires in 1938-40 is a no-go for anyone but the UK, Supermarine can't satisfy even the needs of RAF. The French (priority 1) got just one for evaluation. Belgium got prority number 2, Portugal number 6, Iran for example got number 12, Yugoslavia got #8 - neither country got any in that time frame. All priority numbers are from mid 1938.
 
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