I don't think I can answer that. There are too many variables in the projected income from the various equipment (planes) to come up with an accurate PPS. These figures are usually "educated wild guesses".
And most of all, all this depends on "sales" or contracts. Without them, there is little income.
My background is more operations than investing, so I look at things from a different point of view than most other people here, who I assume are more financially oriented.
But to give you some information to go on, I just had a great conversation with "justanotherdollar" and I think you may find his projections interesting. Look back a few posts and read his insight.
Wish I could be more help.
GLTY
News 
Market Data 
Discover 
AI
