07.04.2009, 18:12
I didnt saw speed trials from these document so i really dont know if these is calculated data or tested.
Moreover even if it was data from RL test it is noted that there was used 1.42 Ata for Db601E and 605A which was restricted initialy in serial production ( until IV.1942 for 601 and XI.1943 for 605A).
Also from 2-nd document there is no info about speed of 109 F-4 - 670 km/h - where is point 5 ( info is missing in these page).
Aslo we dont know if these test was with compressibilty correction. There were some German data from speed test for 109 F-4 with these error of not compressibilty correction. There is info at Kurfurst site.
Another fact is that Bf 109 G in 2-nd document was G-1/R2 reconanse version with less take off weight - 2870 kg instead fighter load plane - 3040kg. It is quite logical that without blocked 1.42 Ata and with much less weight it could do much more ( 700 km at 6600m) then standart G-1 or G-2. ( 660 km at 7 km).
These 2 documents also show big difference betwen these 2 109 G verison. 1 documenct says for 109 G 1.42 standart figher load: 700 km/h - 7 km . 2nd document says 109 G1 R2 with 1.42 Ata and much less weight (2870 kg): 700km - 6.6 km ?
I think the point with making accurate FM is get reliable data ( average values from avaliable suorces). You could get reliable data from serial planes and make accurate FM's or you could get data from prototypes or unserial planes but then you make the same OlegTrix as we have actually.
I choose the first option but you could make what you want .
Moreover even if it was data from RL test it is noted that there was used 1.42 Ata for Db601E and 605A which was restricted initialy in serial production ( until IV.1942 for 601 and XI.1943 for 605A).
Also from 2-nd document there is no info about speed of 109 F-4 - 670 km/h - where is point 5 ( info is missing in these page).
Aslo we dont know if these test was with compressibilty correction. There were some German data from speed test for 109 F-4 with these error of not compressibilty correction. There is info at Kurfurst site.
Another fact is that Bf 109 G in 2-nd document was G-1/R2 reconanse version with less take off weight - 2870 kg instead fighter load plane - 3040kg. It is quite logical that without blocked 1.42 Ata and with much less weight it could do much more ( 700 km at 6600m) then standart G-1 or G-2. ( 660 km at 7 km).
These 2 documents also show big difference betwen these 2 109 G verison. 1 documenct says for 109 G 1.42 standart figher load: 700 km/h - 7 km . 2nd document says 109 G1 R2 with 1.42 Ata and much less weight (2870 kg): 700km - 6.6 km ?
I think the point with making accurate FM is get reliable data ( average values from avaliable suorces). You could get reliable data from serial planes and make accurate FM's or you could get data from prototypes or unserial planes but then you make the same OlegTrix as we have actually.
I choose the first option but you could make what you want .