"We had lot of aircraft on-hand when the USAF was created., but we have no manned spacecraft of any kind and none in the pipeline."
I agree with the thrust of what you were saying, but we have not one, not two, but three manned orbital spacecraft currently in the pipeline. Orion, Dragon V2, and the CST-100. We have no shortage of manned vehicles in the pipeline, we have a lack of operational manned vehicles with all three of the aforementioned being behind schedule.
Boeing and SpaceX are supposed to test their spacecraft this year unmanned, with manned flights early in 2019. We’ll see about that.
Your graphic shows how relatively huge Orion is. Would be cool also, to add the Soyuz crew module to the comparison