Messerschmitt Bf.109 Performance Chronology (1 Viewer)

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Maybe the MGs or the cannon were not installed in the G-5 testbed for the AS engine.
 
Is the graph from flight tests or calculated like those in Kuffies link?
Somewhat irritating to see the G-6 with 605A 130kg heavier than the G-5 with 605AS - gunboat?
-> Kuffies data has the /AS heavier by 35kg.

The chart is from the attached pdf.
There is the a chart at Kurfurst's showing (claiming it is for a clean 109G-6) the AS engine with MW 50 engaged (basically = ASM engine) propelling the aircraft to 690 km/h at 7 km.
 

Attachments

  • 109_projekt.pdf
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The charts are nice but to be treated with a grain of salt if you don't know corrections for standard day and compressibility. The latter was missing (and stated as missing) for the data on Kuffies link
 
The speed values from the pdf I've posted are rather conservative, eg. the 109G6 doing only 635 km/h on Notleistung.

This table might be of interest, FWIW. The values in the brackets should be for MW 50 engaged, ie. 'Sondernotleistung' power setting. Looking at weights, the values are for 'clean' A/C, ie. no 'gondelnwaffen'.

Hmm, the speed for the G-14 from the table and the G-5ASM (from the graph) is much lower - maybe the G-5ASM was indeed flown with reduced weaponry?

edit2: the GL/C-E2 tables from Williams site also have the performance figures for the Bf 109s with AS/ASM engines
 
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The sheet that covers the Bf-109K versions; only the K-4 meant anything in the ww2 air warfare. Please note the question-mark next to the speed vs. altitude value for the K-16 version (the one with two stage engine, the DB 605L), reason most probably being the 16,6 km stated altitude, instead of 10,6 km. Unfortunately, the speed graph is badly 'wrecked', though it can be deciphered. The K-6 and K-14 were suposed to carry MK 108 cannons in the wings, per the sheet.
The translation can be read here, minus the speed values for the K-16. However, the speed RoC graph covers that variant.
Open the pic separately for hi-res.
ks.JPG


This might be also of interest: data sheet
 
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I would like to wrap up some of the questions I posted before. I have been looking at introduction dates of late war variants of Bf 109. Here is a list with the links:

G-6 /AS: early 1944 production (1), may 1944 (2), april-may 1944 -JG 1, JG 3, JG 5 and JG 11- (3)
G-14: July 1944 (2)
G-14/As: August 1944 (2)
G-10: October 1944 (2)

(1) Kurfürst - Articles - Notes for "Spitfire Mk XIV versus Me 109 G/K A Performance Comparison"
(2) Luftwaffe Late Fighters - Bf 109 G-6,8,10,14, K-4 - Implemented Suggestions - War Thunder - Official Forum
(3) Bf-109 G-6 A/S - Axis History Forum

Any further details/corrections?
 
Finally,
After picking up some of the books mentioned on this thread I was able to properly finish
the "Quick Reference" of the Bf 109. Let me tell you, there was nothing quick about it.
I found out the hard way that there is a 20,000 digit limit per post and had to rearrange
my original first post and posting the extended engine information and references this post.

Other engine performances:
DB 605ASM: June 1944: C3 or B4/MW 50: 2,800 rpm/1.7 ata: 1,800 ps/T.O., 1,500 ps/6,400 m.
& 1,150 ps/7,800 m./2,700 rpm.
DB 605DB: B4/MW 50/2,800 rpm/1.8 ata: 1,850 ps/T.O., 1,600 ps/6,000 m. (chronically burning thru
pistons).
DB 605DB (after corrections @ 2,800 rpm): 1,800 ps/1.8 ata/T.O., 1,530 ps/1.98 ata/4,900 m.
DB 605DC: December 1944C3 fuel/MW 50/2,800 rpm/1.98 ata: 2,000 ps/S.L., 1,800 ps/4,900 m.
& 1,550 ps/6,000 m./1.8 ata

References:
Messerschmitt Bf 109 A-E by Willy Radinger & Walter Schick
Messerschmitt Bf 109 F-K by Willy Radinger & Wolfgang Otto
Warplanes of the Third Reich by William Green
Combat Aircraft of World War II by Bill Gunston
Messerschmitt Bf 109 in Action Pt.2 by John R. Beaman
Messerschmitt Bf 109 F, G, & K by Jochen Prien & Peter Rodeike
Messerschmitt 'O-Nine' Gallery by Thomas Hitchcock
Messerschmitt Bf 109, The Design and Operational History by Jan Forsgren

I will attempt to post the performance figures I have recorded on excel as soon as
I can remember how to make a PDF from my files and then attach it.:scratch:
 

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