how long should it take?
Given that the average program from start(program awarded) to IOC is:
10.2 years for an upgrade/derivative of an existing airframe (VH-71, S92, CH148, UH-1Y, AH-1Z, ARH [projected IOC of 2011 from 2008 GAO report], CH-53K)
18.3 years for a new model (EH101, NH90, RAH66[if it had gone to production it would have increased the average])
is 25 years for a new type design (V22) really out of line with historical averages?
If so could you please provide examples of recent examples?