Author Topic: hurricane fuel endurance? (Read 346 times)

Citabria · « **on:** October 18, 2001, 01:21:00 PM »

it sucks!

shouldnt it have same range as spit5 ?

or was it this poor in real life?

funkedup · « **Reply #1 on:** October 18, 2001, 01:33:00 PM »

Check pilot's notes for both planes. All the fuel data are there. http://www.btinternet.com/~snaffers/

Blue Mako · « **Reply #2 on:** October 18, 2001, 10:05:00 PM »

Quote

Originally posted by funkedup:
Check pilot's notes for both planes. All the fuel data are there. http://www.btinternet.com/~snaffers/

From above source:

Spit V - 85 gal minimum
Hurricane IIC and IID - 61 gal

Toad · « **Reply #3 on:** October 18, 2001, 11:19:00 PM »

I'm guessing the Hurri has higher drag than the Spit too..

It'd have to be way lighter or something to go as far as a spit on ~25% less gas...

whels · « **Reply #4 on:** October 19, 2001, 10:19:00 AM »

Quote

Originally posted by Citabria:
it sucks!

shouldnt it have same range as spit5 ?

or was it this poor in real life?

our hurris shoud go 460 miles on internal fuel, and spitv about 420.

whels

AKSWulfe · « **Reply #5 on:** October 19, 2001, 10:35:00 AM »

don't fly at full throttle everywhere- you eat up gas real quick!
-SW

funkedup · « **Reply #6 on:** October 19, 2001, 11:58:00 AM »

Oops I was wrong, there is not as much fuel consumption information in there as I thought.

Looks like 94 gallon capacity in the Hurri vs. 85 for the Spit.

Bozon12 · « **Reply #7 on:** October 19, 2001, 01:47:00 PM »

I don't know about thr real life planes, but the AH Hurri got the shortest time with full throttle of the entire plane set.
check out exact figures from my experiment:
http://t2.technion.ac.il/~snordon/bozon/

Bozon

funkedup · « **Reply #8 on:** October 19, 2001, 02:32:00 PM »

Here's the real life fuel consumption:
http://www.btinternet.com/~snaffers/HurrIIAIIBIICIIDIV/hurr20.jpg

I believe the appropriate figure for AH full throttle and full rpm is 115 gph. That's 3000 rpm, +12 psi boost, and rich mixture.

For 95 gallon capacity this is a full throttle running time of 49.6 minutes.

Bozon's test gives 66 seconds at 10 fuel multiplier and 25% fuel. So multiply 66 by 4 to adjust for fuel load and multiply by 10 to adjust for multiplier. This gives 2640 seconds which is 44 minutes.

44 minutes instead of 49.6 minutes is 11% error. But Bozon claims his figures are +/- 2 sec, which puts the upper bound of AH endurance at 45.3 minutes. In that case AH is off from the real figures by about 8.7%.

So AH fuel consumption is probably a little bit high. But not bad IMHO. And I can't remember what the boost gauge reads in the Hurri at full throttle. If it's more than +12 then the AH fuel consumption might be an exact match with the Pilot's Notes figures.

[ 10-19-2001: Message edited by: funkedup ]