Aces High Bulletin Board

General Forums => Aircraft and Vehicles => Topic started by: Citabria on October 18, 2001, 01:21:00 PM

Title: hurricane fuel endurance?
Post by: 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?

Title: hurricane fuel endurance?
Post by: funkedup 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/ (http://www.btinternet.com/~snaffers/)

Title: hurricane fuel endurance?
Post by: Blue Mako 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/ (http://www.btinternet.com/~snaffers/)

From above source:

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

Title: hurricane fuel endurance?
Post by: Toad 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...

Title: hurricane fuel endurance?
Post by: whels 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

Title: hurricane fuel endurance?
Post by: AKSWulfe on October 19, 2001, 10:35:00 AM

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

Title: hurricane fuel endurance?
Post by: funkedup 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.

Title: hurricane fuel endurance?
Post by: Bozon12 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/ (http://t2.technion.ac.il/~snordon/bozon/)

Bozon

Title: hurricane fuel endurance?
Post by: funkedup on October 19, 2001, 02:32:00 PM

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