Author Topic: Fw190A-8: acceleration? (Read 4468 times)

Crumpp · « **Reply #60 on:** February 15, 2006, 06:37:00 AM »

There are also different oil coolers too.

TimRas · « **Reply #61 on:** February 15, 2006, 10:07:23 AM »

Quote

Originally posted by Crumpp
The FW-190A8 is modeled off of TD 284.

That report does not match the data reported to the RLM on 10 Nov 1944 for a clean configuration FW-190A8.

I'm not sure if I have seen either of these. Is the "TD 284" the same as originally posted by Vermillion ?:

Quote

Originally posted by Vermillion
I've posted this about 8,765 times but here it is again.

These charts are from:

"Fw190A-8 Aircraft Handbook"
D. (Luftt) T.2190A-8
effective July 1944, Issued September 1944

This is the english translation, of the edition issued by Wittmer, Chief of Technical Services, Luftwaffe High Command, Berlin 5 September 1944.

Standard Fw190A8 (4 cannons)
Performance vs Altitude Chart

Fw190A8 (4 cannons) + GM1
Performance vs Altitude Chart

Fw190A8/R2 (AH 190 with x2 30mm cannons)
Performance vs Altitude Chart

I tested the Fw190A-8 (WEP) speeds and climb from SL to 20K and compared with the first chart. It is as accurate match as I can measure (give or take a couple of mph in speed).
Btw. the weight posted by Crumpp, 4392 kg (with fuselage aux. tank) is the same as given by the AH help.

Crumpp · « **Reply #62 on:** February 15, 2006, 10:28:30 AM »

Quote

I'm not sure if I have seen either of these. Is the "TD 284" the same as originally posted by Vermillion ?:

Yes that is TD 284.

Here is the original German. The finish is not filled and polished. It is a standard service finish for Luftwaffe aircraft. Flying the aircraft with the 115 liter tank and without the ETC 501 is forbidden in the Flugzeug-Handbuch. The CG is out of limits in this configuration.

TimRas · « **Reply #63 on:** February 15, 2006, 11:02:06 AM »

Quote

Originally posted by Crumpp
Flying the aircraft with the 115 liter tank and without the ETC 501 is forbidden in the Flugzeug-Handbuch. The CG is out of limits in this configuration.

That explains the weight difference (4300kg vs. normal weight 4392kg). 92kg=115 litres of fuel, so aux. tank was probably empty.

How much is the difference in "RLM on 10 Nov 1944" regarding speed and climb ?

Crumpp · « **Reply #64 on:** February 15, 2006, 01:54:16 PM »

Quote

That explains the weight difference (4300kg vs. normal weight 4392kg). 92kg=115 litres of fuel, so aux. tank was probably empty.

It cannot be mounted and flown without rack. Empty or not, Timras.

The set up also claims GM-1 installation. Where was GM-1 installed??

The 85 liter tank is the ONLY tank that was authorized for GM-1 use. This tank was specially insulated to maintain the LNOX for as long as possible. Even then, Luftwaffe regulations dictated that the aircraft must be flown within a certain time period of being serviced with LNOX.

The system weighed 104 KG's installed and gave 21.7 minutes of use.

All the best,

Crumpp

niklas · « **Reply #65 on:** February 15, 2006, 02:19:33 PM »

Quote

Originally posted by Crumpp
Yes that is TD 284.

Here is the original German. The finish is not filled and polished. It is a standard service finish for Luftwaffe aircraft.

Well it mentions filling and smooth painting, so it confirms what my fw documents say: From the A6 on they used smooth painting instead of polishing.
Filling is definitly not a filling for the last litte rivet hole etc, what you would do for a world record machine. The major gaps, maybe at the cockit for example, where filled. That´s indeed nothting special.

niklas