As I indicated up the thread, I did some 109G-14 testing to try to figure out exactly what we had. I'm still at a loss.
At 25% fuel and 6500lbs (I shot off all the ammo) - I was getting 312 and 347 WEP at Sea Level. That was about right. I WEP climbed for a while and at NO time could I match the climb rate on HTCs charts. I topped out at 4590 ft/min at about 4K and went down steadily from there - the chart showing 4900 ft/min WEP climb at 5K must be with an attached rocket motor which I don't seem to have access to.
I flew the G-14 around, and at low to medium alt, I think we are getting most of the rated performance, but the climb is still suspect.
I think what this tells me more than anything else is that we need a defined testing regimen for aircraft and more testing.