Author Topic: P47D-40 fuel weight bug (Read 254 times)

Gryffin · « **on:** August 07, 2007, 09:16:16 PM »

Some takeoff weights from the E6B page:

Fuel Guns Ammo Fuel Weight

25 8 425 92 13282
50 8 425 186 13849
75 8 425 278 14339
100 8 425 370 14951

From 25->50% fuel, you gain 567lbs and 94 gallons of fuel
From 50->75% fuel, you gain 490lbs and 92 gallons of fuel
From 75->100% fuel, you gain 612lbs and 92 gallons of fuel

Shouldn't each 1/4 of a tank of fuel weigh the same amount and have the same number of gallons?

Krusty · « **Reply #1 on:** August 07, 2007, 10:40:49 PM »

Let's see, offline

0% = 12044 lbs, 0gal
25% = 12594 lbs, 92 gal, fuel = 550 lbs total, 6lbs/gal
50% = 13161 lbs, 186 gal, fuel = 1117 lbs total, 6lbs/gal
75% = 13712 lbs, 278 gal, fuel = 1688 lbs total, 6lbs/gal
100% = 14264 lbs, 370 gal, fuel = 2220 lbs total, 6lbs/gal

I got different numbers from you. I chose the smallest gun package, no DTs no ord no nothing. DTs (even empty) add weight to the frame. Rockets add rocket pylons I believe. I tested mine "clean".

Gryffin · « **Reply #2 on:** August 08, 2007, 12:00:52 AM »

You are right, I went back and discovered that I wrote one of the numbers down incorrectly, 14339 should be 14399!

Not a bug after all!

bj229r · « **Reply #3 on:** August 09, 2007, 07:45:29 PM »

pylons are there in US planes whether theres stuff on em or not

oldtard · « **Reply #4 on:** August 11, 2007, 05:03:34 PM »

Krusty is correct 1 gallon of fuel is 6 pounds