Ta-152H-1 climb rate

[kilo2]

That early in 44 there were only two 152 prototypes both of which had a 4 bladed prop as opposed to the three bladed prop. Interestingly enough late when they started to run out of parts they fitted these on a couple H1s. Also one of the 152 prototypes was not even using the jumo so this may account for the differences.

[Krusty]

From the context I don't believe that's what's going on here.

You'll also note they specify which engines in the chart posted above. They would also say V-5 or whatever the designation was for the prototype, rather than the production name of H-0, C-0, etc.

[kilo2]

The prop could still be the 4 bladed prop. Although I just realized the date is October as they go by day/month/year instead of month/day/year.

As for October the plane would have had to have been one of the modified prototypes because the first production 152-h0 did not fly until november 44.

either that or its speculative data.

[Babalonian]

Kilo hit a nail on the head, to add some difficulty to a complicated matter you have to take into account the dates this data was recorded on as the 152 was a rapidly developing/changing plane through 44-45, one being the change to a three-bladed prop rather than the original four-bladed concept.

This subject and the calculations are a bit above my head for me to consider them casual reading material, but I am following this thread now and finding it very very fascinating, hopefully it will bear some sweet fruit.