Just had a look at an earlier link:
Sharkey's World: Black Buck - The Truth of the Matter
Seems a little disingenuous to use today's fuel costs! Making a black buck raid fuel cost £520,000, and cost per weapon a 'tad' high.
So in true geek style, did a little research, fuel at the time was around $0.92 a gallon (don't get me started on UK/UK gallons), or £0.50p (based on the exchange rate of the time.
Makes the cost of the black buck raids a more manageable £65,000 in fuel (basically divide all the costs by 8), or £188k (based on inflation), compare that to $1.45m for a tacit Tomahawk (yes I appreciate the numerous other incurred costs!).