The question is whether they will achieve the prices they want. Does anyone know about their success in achieving the expected revenue?

Brokers have target price of over 2000p and some people say this company is vodafone in infancy, also DCF valuation of this co. is over £27

No, you are correct

If the chairman states the 1st satelite ( Hylas1) will have sold out its available capacity by 2014 ( 3yrs from launch) at a total of £50M gbp..........and the second satelite ( Hylas 2) due to launch in June July 2012 is 3.25 the size & is projected to have sold 95% capacity by June 2015 - then the 4 traders financial projections appear to understate Turnover.
By June yr end 2013 Turnover Hylas 1 = 34M gbp Add £50M for Hylas 2 = £84M gbp
By June rr end 2015 Turnover Hylas 1 = 50M gbp add £140M for Hylas2 = £190M gbp

Hylas 3 ( already financed) due to launch in 2015 - it is difficult then to see Avanti making less than £100M PAT and having a PE of less than14 ...........that is a £1.4Billion market capitalisation in 3 years - possibly 4. It is currently MC £340M gbp
Why does the SP not resfalect this easily calculated growth path ? Am I stupid in expecting gains of over 500% in 3/4 years?