Hitech, Fuel consumption questions

[F4UDOA]

JoeBlogs,

Just taking a quick look at the NIK2.

1990HP WEP
190 gallons internal
44 minutes in the MA * 2= 88minutes IRL

I don't have a Mil power reference for this but even if mil power is 1500HP and I think it would be higher the SFC would be .51

[Batz]

MW50 on the 109K-4 was limited to a total of 26min (flowrate 180 l/hr, contents 75l) with a max of 10min per use and resting period of 5min between use.

I assume the g10 would be the same.

[joeblogs]

I'm trying to see if I can work out implied fuel mixtures for these engines using just RPM and manifold pressure.  Will let you know.

I may have some numbers on the engine in the N1k2

-Blogs

Originally posted by F4UDOA
JoeBlogs,

Just taking a quick look at the NIK2.

1990HP WEP
190 gallons internal
44 minutes in the MA * 2= 88minutes IRL

I don't have a Mil power reference for this but even if mil power is 1500HP and I think it would be higher the SFC would be .51

[VO101_Isegrim]

Originally posted by F4UDOA
Anybody know how much MW50 the 109G10 carried?

The MW tank in late 109Gs and the K series was of 115 liter capacity, but for CG reasons - MW was heavier than the avgas that could be also carried in tank on K4 -  usually 70(or 75liter)
According to German GLC documentation, G-10, G-14 carried 63 was carried, whereas K series carried 85 liter in the tank.
kg MW, whereas K-4 carried 77kg MW. That`s roughly 75 and 85 liters.

MW consumption varied, being 150 lit/hour on G-14 with DB605AM, and 180 lit/hour on K-4 with DB 605D. I believe that`s why tankage varied, to give enough MW for about 30 min use.


MW was practically enough for the whole duration flight, as it was only injected at 110% (Sondernotleistung) power. During 30 min use of Sondernotleistung, about 300 liter fuel out of 400 int. tankage was used up, so by time MW run out it was time to head for home.

MW50 and max. power could be used for 10 minutes , after which apprx. 5 minutes were required on lower power to allow the engine to cool down. Then MW could be used for another max. 10 minutes. Of course many variations were possible.