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VBF-83_Hawk
01-04-2005, 04:17 PM
I really have delayed posting this but thought I would go ahead with it.

<-----Gets out the flak jacket!

The F4U-1D fuel guage is marked in 10 gal increments up to 240 gals.
F4U-1D holds 237 gals.
With a load out of 25% fuel, the guage indicates 33 gals. 33x4= 132gal.
With a load out of 50% fuel, the guage indicates 66 gals. 66x2= 132 gals.
With a load out of 75% fuel, the guage indicates 99 gals.
With a load out of 100% fuel, the guage indicates 132 gals...not 237 gals.

Questions

1. Is the fuel guage bugged?
2. Why is the fuel fugured on 132 gals instead of 237 gals?
3. Will all this be fixed, if its wrong, in v3.04?
4. With the correct fuel load, will the weight be too much for any carrier ops?
5. Is the fuel consumption modeled correctly?

VBF-83_Hawk
01-04-2005, 04:17 PM
I really have delayed posting this but thought I would go ahead with it.

&lt;-----Gets out the flak jacket!

The F4U-1D fuel guage is marked in 10 gal increments up to 240 gals.
F4U-1D holds 237 gals.
With a load out of 25% fuel, the guage indicates 33 gals. 33x4= 132gal.
With a load out of 50% fuel, the guage indicates 66 gals. 66x2= 132 gals.
With a load out of 75% fuel, the guage indicates 99 gals.
With a load out of 100% fuel, the guage indicates 132 gals...not 237 gals.

Questions

1. Is the fuel guage bugged?
2. Why is the fuel fugured on 132 gals instead of 237 gals?
3. Will all this be fixed, if its wrong, in v3.04?
4. With the correct fuel load, will the weight be too much for any carrier ops?
5. Is the fuel consumption modeled correctly?

Hopper_35thCAG
01-04-2005, 05:16 PM
click me (http://www.craigcentral.com/models/f4u-1d/default.asp)

Maybe this will help.

VBF-83_Hawk
01-05-2005, 05:24 AM
Anyone else notice this?

Thanks Hopper but the link doesnt explain why the fuel guage in PF does not indicate proper fuel loads.

DRB_Hookech0
01-05-2005, 08:03 AM
I dont think your quanitites are right. I'm at work right now but I remember the main tank is 180 gal. plus a 50 gal. standpipe reserve. The wings I think were 62 gal each.

I'll post some numbers at lunch....if I still have power after 2 inches of ice last night....like a skateing rink outside.

jrowland96
01-05-2005, 10:17 AM
The data on the link that Hopper posted just confirmed what the original poster said about the size of the fuel tank (in real life).

reisen52
01-05-2005, 10:48 AM
The plane had wing tanks lost them then got them back then lost them again.

It started as a 4 gun plane & had wing tanks. When it went to 6 guns it lost the wing tanks cause they were when the gun bays were going.

To makeup for the loss of the wing tanks the main tank got bigger to a self-sealing 897 liter.

Early in the production run a pair of 62 liter tanks were added outside the gun bays.

Once the plane got fitted for drop tanks the wing tanks which were not self-sealing were taken out for the last time.

So the number should be 237US gal.

Zeke

ICDP
01-05-2005, 01:18 PM
I e-mailed the devs with this problem but they are on holiday I believe. This was also a problem in 3.02 (don't know about earlier versions) so it has been an issue for a while now.

DRB_Hookech0
01-05-2005, 02:39 PM
Zeke is on the right track here, below I'll post the infor I have from the F4u-1 flight manual (which lists info on the -1d model also)

Fuel - Grade 100/130 Spec. AN-F-28

Capacity (model F4u-1, F3a-1, FG-1, and Brit serial # Jt-100 to Jt-554)

Normal Fighter - 178 US gal. (75% full main tank only)

Overload Fighter (full tanks) - 363 US gal. (237 gal. main + (2) 63 gal. wings)

Overload Fighter (drop tanks) - 535 US gal. (237 gal. main + (2) 63 gal. wings + 170 gal. drop tank)

Capacity (model F4u-1d, F3a-1d, Fg-1d and Brit serial # Jt-555 and subsequent)

Normal fighter - 178 US gal. (75% full main tank only)

Fighter - 237 US gal. (100% full main)

Long Range fighter or fighter bomber - 391 US gal. (Full main + 154 gal. Navy Std. drop tank)

Long rang fighter - 545 US gal. (Full main + (2) 154 gal. Navy Std. drop tanks. Could go577 US gal. with full main + (2) Lockheed type 170 gal. drop tanks)

Tanks:
Fuel system for model F4u-1, F3a-1, FG-1, and Brit serial # Jt-100 to Jt-554
inclusive (prior to center section twin pylons installation) is shown in fig. 11.

The self sealing main tank, located in the fuselage, forward of the cockpit, has
a total capacity of 237 US gal. of fuel, including a stand pipe reserve of 50
US. gal.. Two wing tanks, built integrally with the outer panels, have a capacity
of 63 US gal. each. The wing tanks are provided with a CO2 vapor dilution system.
Provision is made, under the fuselage, for the installation of a droppable auxiliary
tank having the capacity of 170 US gal. The main fuel tank maintains a standpipe
reserve of 50 US gal. after the fuel supply thru the main line is exhausted. Bear
in mind that the reserve is made availible as the quantity necessary for final
operation before landing, when the main fuel supply is exhausted and noted below.

The fuel system for model F4u-1d, F3a-1d, Fg-1d and Brit serial # Jt-555 and subsequent
is shown in fig. 11A.

This system includes provisions for installing two Navy standard-type droppable tanks,
each with a capacity of 154 US gal. on the center section twin pylons. Lockheed-type
droppable tanks which have the capacity of 170 US gal. may be installed in place of
Navy standard-type tanks if the latter is not available. The orignal main tank and
provisions for installign s droppable tank under the fuselage are retained on these
airplanes. However, the two wing tanks and their vapor dilution system are eleminated.

VBF-83_Hawk
01-05-2005, 05:27 PM
So is it confirmed that the -1D did have wing tanks?

My information I posted is what the fuel guage in the PF F4U shows.

DRB_Hookech0
01-05-2005, 06:09 PM
<BLOCKQUOTE class="ip-ubbcode-quote"><font size="-1">quote:</font><HR>Originally posted by DRB_Hookech0:

The fuel system for model F4u-1d, F3a-1d, Fg-1d and Brit serial # Jt-555 and subsequent
is shown in fig. 11A.

This system includes provisions for installing two Navy standard-type droppable tanks,
each with a capacity of 154 US gal. on the center section twin pylons. Lockheed-type
droppable tanks which have the capacity of 170 US gal. may be installed in place of
Navy standard-type tanks if the latter is not available. The orignal main tank and
provisions for installign s droppable tank under the fuselage are retained on these
airplanes. However, the two wing tanks and their vapor dilution system are eleminated. <HR></BLOCKQUOTE>

The -D IIRC, came about when they added the hard points on the wings and the twin pylons at the centerline. So no the -D did not have wing tanks

stansdds
01-05-2005, 06:13 PM
The F4U-1 had tanks located in the outer wing panels, the tanks were deleted with the introduction of the F4U-1C and D and all subsequent Corsairs. The wing tanks were deemed uneccesary with the addition of the two pylons under the center section of the -1C/D and subsequent Corsairs.

VBF-83_Hawk
01-05-2005, 06:20 PM
Ok, for about the last four years I thought the F4U-1D did not have wing tanks. Sometimes I catch myself reading F4U-1 info instead of -1D info.

So can we confirm that PF F4U-1D Fuel guage is wrong when it says 100% fuel load indicates only 132 gals?

However, I like DRB's post about "Fighter Fuel Loading" to be 75%...which should be 178 gals, not PF's 99 gals.

God I hope if this is corrected it wont add more weight...lol

stansdds
01-06-2005, 04:01 AM
<BLOCKQUOTE class="ip-ubbcode-quote"><font size="-1">quote:</font><HR> Ok, for about the last four years I thought the F4U-1D did not have wing tanks. <HR></BLOCKQUOTE>
That is correct, only the F4U-1 (and the unofficial designation F4U-1A) had tanks located in the outer wing panels. These were deleted from the F4U-1C, D, -4, -5, -7, and AU-1 corsairs. The 154 gallon drop tanks placed on the two pylons were deemed to be a more than adequate replacement for the wing tanks.