September 18, 2006 at 5:57 pm
Don’t want to stir up the pot about XH558, but I am just curious as to what amount of jet fuel per hour burns a Vulcan at low level ?
By: happymeal - 20th September 2006 at 06:43
Thank you…
Thanks for these accurate figures ! I could fly my Stampe for ages (if only she had a Diesel engine :diablo: ) with what those Olympus would burn a single display.
Did you compute what sort of amount XH558 would burn during the kind of display she used to perfrom in the old days ?
By: Flipflopman - 19th September 2006 at 22:18
Hi,
The Olympus 20201 fitted to the Vulcan has a fuel burn of 13,950 lbs/hr at maximum power (100-100.5%) at sea level on an ISA standard 15c, 1013.2mb day.
This equates to a rate of 55,800 lbs/hr for a Vulcan with Take Off power selected at the end of the runway. Quite a lot eh!
Quickly crunching a few numbers regarding the fuel burn and using Moggy’s figure of 60p per litre, this equates to £5.24 per second.
To put this into perspective though, in similar circumstances; Max power, lined up on runway etc….. a Tornado GR4 in max reheat is burning 6 gallons of Avtur per second. The Vulcan only burns around 2.
Before anybody gets too excited over the figures and Airshow costs as a result, can I assure you that these figures and resulting costs are well known by the TVOC and have long since been taken into account.
I can assure you that these figures are not dreamt up 😀 As one of the Propulsion engineers on TVOC, these figures have been taken direct from the Operating Manual of the Bristol Olympus and established records.
Thirsty though isn’t she 😀 😀
Flipflopman
By: Moggy C - 19th September 2006 at 08:04
What’s the going rate for Jet-A in the UK?
Around 60p / litre I believe.
If you call 10,000lb about 5,500 litres you won’t be far out, so say £3,500 to £5,000 fuel cost for the show, plus positioning.
This figure is very shaky and I certainly wouldn’t claim it to be anything better than a wild approximation.
Moggy
By: J Boyle - 19th September 2006 at 03:28
I’d guess that a typical Vulcan take off, loiter, display and landing wouldn’t get you a lot of change from 10-12,000lb
Moggy
What’s the going rate for Jet-A in the UK?
Assuming a best case scenario (getting fuel at bulk-rate airline prices) or even worse case (fuel at private..i.e. non-bulK) prices, what would be the fuel cost for the sortie mentioned above?
That might give us an idea of what it would cost to do an airshow.
I’m neutral (though I wish them the best) on the Vulcan issue (I’m neither a fan or a cynic…) however, I’d expect (or at least hope) the Vulcan supporters have researched this prior to spending the money on restoration.
After all, restoring a plane to flying condition is rather pointless if you can’t afford to fly the thing (which is way a Dakota or something similar is not parked in my pasture).
By: Moggy C - 19th September 2006 at 00:25
From text references in Vulcan 607, 2,000lb is barely enough to start up, taxi to the far end of a runway and then taxi back again.
10,000lb/hr is economical cruise at altitude.
I’d guess that a typical Vulcan take off, loiter, display and landing wouldn’t get you a lot of change from 10-12,000lb
Moggy
By: super sioux - 18th September 2006 at 22:27
I am still searching for fuel usage which is affected by RPM, JPT and ALTITUDE but the Olympus oil consumption was 1.5 pints per hour maximum.
By: Firebird - 18th September 2006 at 19:27
You might get an response from those that flew it if you posted this here….Did you fly the Vulcan thread
By: happymeal - 18th September 2006 at 19:21
Vulcan / fuel
Well, to get a rough idea, may be at cruise speed would be a good start ?
By: RobAnt - 18th September 2006 at 18:10
Surely that would depend upon the varying throttle settings for the performance required – ie faster more fuel, slower less fuel? I guess what you’re really looking for is a graph, rather than a set figure?