I was talking about the current Ukrainian engine,TF-10000 not ready yet.
Sorry, my mistake, but I don't see any significant difference between the two engines we can see here.
In itself, an engine like the GE-F404 is actually the ideal engine, but it is too expensive for a drone that is calculated from the outset as a loss system (combat).
For the Ivchenko Progress AI‑322F, the thrust‑to‑weight ratio is calculated as:
Maximum thrust divided by engine weight (including gravity),
that is:
24,500 N ÷ (560 kg × 9.81 m/s²) ≈ 4.46
For the TEI TF‑10000, the thrust‑to‑weight ratio is calculated as:
Maximum thrust divided by engine weight (including gravity),
that is:
44,500 N ÷ (950 kg × 9.81 m/s²) ≈ 4.77