Recent content by paul.kachurak

Jon, I have no idea what you are trying to say. Honestly I can't follow it. So what I'll do is write down the formulae, I'll scan it and I'll post it here. This really isn't that hard from an aero performance standpoint. What are you not understanding so I can help? The forumlae I used...

Bank angle is not part of the equation per se. A plane banks to an angle required by the desired load factor. The key is load factor. Bank angle is found by the arc-cosine of the inverse of load factor or bank angle = acos(1/n). So that means every airplane, every single one, regardless of...

I will explain as plainly as I can how I arrived at "those turn charts and so on". Thanks for the back-handed remark. In a sustained turn thrust equals drag. For a prop airplane thrust T = Power / Speed = P/V. Drag D = zero lift drag + lift induced drag. I have P-51D and Fw190D-9 zero...

The gentleman, Lutz Naudet, mentioned at the bottom of that page, is the person from whom I got a lot of D-9 data. We've traded e-mails discussing the D-9 and Jumo. Here is an interesting thread on the Jumo by Naudet: http://www.allaboutwarfare.com/forums/index.php?showtopic=832&hl=jumo

The source of the P-51D data can be found here: http://www.spitfireperformance.com/ look under the Mustang testing pages The source of the FW190D-9 data are: three FW sheets datad 11 March 1945 that gives speeds for different power settings a Jumo 213A power versus altitude curves dated...

Jon, I think at one time the USN was considering making a carrier-capable version of the P-51. I seem to remember seeing a picture of a Mustang on a CV deck. All, You guys should realize that the requirements for the USN are different than the USAAC/F. Carrier suitability drives the...

Erich, Check your PMs here. I missed getting your e-mail address. R, Paul

Syscom3, Yes it would be nice but it is also nice to see it in German because IMO it enhances it's authenticity. Do you have any questions on those two? I've used this site http://dict.leo.org/?lang=en&lp=ende&search= to translate a lot of it and the rest I've figured out what it is on my...

I don't know where I got these from. IIRC I copied them off another forum. Per your request:

Aww hell I am 99.99% sure I got these off of the internet so I'll post them. The first is the drag data. Also on there is camax aka CLMAX. You will also see about 2/3 of the way down under the D-9 column and on the Nstart row that with MW50 the power is 2100 PS. I have a power curves for a...

I agree. I have a Jumo213E1 power plot, too. But the Jumo213E1 was not installed in the Fw190D-9. It was installed into the Ta-152. One must remember that Kurt Tank considered the D-9 as an interim solution until he could get his real high altitude plane developed. If you don't have it I...

once I receive the Jumo stuff I will delete my thread. if you would please.... ? many thanks Erich ~ Erich, I will-do tonight when I get home.

Jon, Thanks for the information. I use true airspeed for all my calculations not indicated airspeed. I guess I don't understand why you say I will exceed the aircraft limitations when I purposefully limited the max g to 6 not to represent the limits of the aircraft but rather the limits...

Soren, I am not going to get into an argument. I have the documentation for a Jumo 213A w/ MW50 giving 2100 PS. If you want I will e-mail that to you or anyone who wants to see. I do not have documentation at all for a 2240 HP Jumo 213A with any boost. If you have documentation that shows...

I don't know where all this came from exactly. I got a lot in e-mails and from other forums. I don't think any of it came from Hafner books but I can't say that for sure I have: Widerstandsdaten von Fleugzeugen dated Dec. 1944 which means "drag data for airplanes" which gives detailed...