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CWDB Military throttle fuel usage lower than cruise?

 
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CWDB Military throttle fuel usage lower than cruise? - 11/2/2017 1:59:37 AM   
Amnectrus

 

Posts: 80
Joined: 10/22/2015
Status: offline
In a couple of Shifting Sands scenarios, I noticed that the Skyraider and Noratlas had much lower fuel usage in military power than in cruise. Looking through the in-game DB viewer, I found several more:

A-2 Savage
AC-119
AD-1 Skyraider
Noratlas
P-40 Warhawk
PBY-5 Catalina
Mosquito
B5N2 Kate
P-47D
Seafire
Spitfire

(Almost all of these are listed as having a 'Turboprop' engine, even though most should be 'Piston'.) In most cases, all sub-models of these planes are also affected (e.g. P-40B/C/D/E/F/etc). I didn't find any jet-powered aircraft that had this apparent inversion. The inversion holds true in all altitude bands. CWDB build 469 and up has the problem, Build 468 and lower do not. I haven't found any planes in DB3000 with this issue, but haven't looked extensively.

I have a save file but can't seem to upload it. Duplicating is easy though, just start a new blank scenario with CWDB 469 or later, add one of the affected planes, and change the throttle between cruise and military, or look in the in-game DB viewer. Please let me know if you need any more info. Thanks!

Edit: Forgot to mention, this is the Steam version of CMANO, v1.13, Build 972.10.

< Message edited by Amnectrus -- 11/2/2017 2:01:08 AM >
Post #: 1
RE: CWDB Military throttle fuel usage lower than cruise? - 11/2/2017 7:35:12 PM   
mikmykWS

 

Posts: 11524
Joined: 3/22/2005
Status: offline
Thanks added to the list.

Mike

_____________________________


(in reply to Amnectrus)
Post #: 2
RE: CWDB Military throttle fuel usage lower than cruise? - 11/2/2017 7:59:21 PM   
.Sirius


Posts: 1256
Joined: 1/18/2013
Status: offline

quote:

ORIGINAL: Amnectrus

In a couple of Shifting Sands scenarios, I noticed that the Skyraider and Noratlas had much lower fuel usage in military power than in cruise. Looking through the in-game DB viewer, I found several more:

A-2 Savage
AC-119
AD-1 Skyraider
Noratlas
P-40 Warhawk
PBY-5 Catalina
Mosquito
B5N2 Kate
P-47D
Seafire
Spitfire

(Almost all of these are listed as having a 'Turboprop' engine, even though most should be 'Piston'.) In most cases, all sub-models of these planes are also affected (e.g. P-40B/C/D/E/F/etc). I didn't find any jet-powered aircraft that had this apparent inversion. The inversion holds true in all altitude bands. CWDB build 469 and up has the problem, Build 468 and lower do not. I haven't found any planes in DB3000 with this issue, but haven't looked extensively.

I have a save file but can't seem to upload it. Duplicating is easy though, just start a new blank scenario with CWDB 469 or later, add one of the affected planes, and change the throttle between cruise and military, or look in the in-game DB viewer. Please let me know if you need any more info. Thanks!

Edit: Forgot to mention, this is the Steam version of CMANO, v1.13, Build 972.10.

Thanks on the to do list :)

_____________________________

Paul aka Sirius
Command: Modern Air/Naval Operations
Cold War Data Base 1946-1979 Author

Old radar men never die - Their echoes fade away in accordance with the inverse fourth power law

(in reply to Amnectrus)
Post #: 3
RE: CWDB Military throttle fuel usage lower than cruise? - 11/22/2018 7:00:10 AM   
Izgud

 

Posts: 18
Joined: 12/29/2016
Status: offline
Hi,

I don't mean to sound impatient, but has there been any headway on this issue?

Here are some amusing images in the meantime:
A-20 with 50 mile range
F-51 with 8,000 mile range

Regards

(in reply to .Sirius)
Post #: 4
RE: CWDB Military throttle fuel usage lower than cruise? - 12/7/2018 9:12:19 AM   
Dimitris


Posts: 11890
Joined: 7/31/2005
Status: offline
Hi,

These have been fixed and will be included in the next CWDB release. Thanks!

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(in reply to Izgud)
Post #: 5
RE: CWDB Military throttle fuel usage lower than cruise? - 12/12/2018 12:33:28 AM   
ljdramone


Posts: 23
Joined: 3/28/2008
Status: offline
Planning to play Northern Inferno scenario 7 (The Mighty "O") and noticed a problem with the EC-121 (after updating to the latest version of CWDB.)

All versions of the EC-121 (military version of the Lockheed Constellation) show the type of the R-3350 radial engine as "Turboprop". The R-3350 is a piston engine.

Piston engines don't work well at high altitude, even if they are supercharged like the R-3350. CWDB says the EC-121 can fly as high as 45,000 feet, but Wikipedia says the Lockheed Constellation's service ceiling is 24,000 feet .

Database speeds are also high. Band 2 max / cruise speeds in the DB are 400 kt / 330 kt, but Wikipedia says max / cruise speeds for the Constellation at 22,600 feet are 327 kt / 295 kt. I'd guess the EC-121 would be slower than that with those radomes hanging out in the breeze.

< Message edited by ljdramone -- 12/12/2018 12:43:40 AM >

(in reply to Dimitris)
Post #: 6
RE: CWDB Military throttle fuel usage lower than cruise? - 5/5/2019 1:06:12 AM   
Izgud

 

Posts: 18
Joined: 12/29/2016
Status: offline
Hi,

This is still an issue with the latest CWDB release. In fact, the F-51's range was increased to 9000 nmi.

Regards

(in reply to ljdramone)
Post #: 7
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