Wednesday, June 29, 2011

More on the F-35C's carrier suitability testing.

Consider this a preemptive strike on the F-35C carrier suitability critics.

I think Sferrin states it best....
"With the F-14 there were two JBD issues:

1. Size. The JBD is much larger due to the launch position of the 14. The smaller JBD's didn't catch the full jet blast. The JBD for the 14 was wider and taller.

2. Heat. The JBD's designed for the F-14 had a greater water flow to them (1000 gpm versus 750) and, had their own dedicated firepump to provide that water rather than just using normal firemain. The retirement of the 14 solved this problem even though the modified JBD's remain in service on ships so fitted.

This was before they got the F110s.


For the F-35:

"One shipalt still in development concerns Flight Deck Jet Blast Deflectors (JBD). The Navy expects aircraft carrier JBDs will require some level of modification to accommodate F-35C heat plume concentration on the JBD. The Navy is currently collecting data from F-35 test aircraft to characterize the heat plume and signature of the JSF F-135 engine. The concentration of F-35C jet exhaust heat and plume differs from that of an FA-18E/F in physical location on the JBD, effects more JBD area, and may have a higher total integrated heat load. The goal of current analysis is to define the heat transfer to the Flight Deck and JBD components, determine the JBD system response, and develop a solution to mitigate the heat imparted by F-35C while retaining compatibility with the FA-18E/F. The solution must also ensure the mission of the JBD to protect the Flight Deck environment. These modifications will be incorporated aboard NIMITZ-class aircraft carriers during previously-scheduled availabilities. Modifications to CVN 78 will be accomplished during construction where possible, after finalization of a JBD system solution.
Several preliminary tests measuring the heat plume characteristics have been completed, funded by the F-35 Joint Program Office. Most recently, an angle plate test was conducted and the test results are being analyzed. Upon completion of this analysis, an F-35C will conduct high-power engine tests against a modified land-based CVN JBD. The cost and schedule to modify the test JBD will be dependent on the results of the ongoing analyses."
Long story short.

The testing is designed to find out issues, concerns and solutions to any problems when deploying a NEW airplane aboard a carrier deck.

I will not be surprised or discouraged if modifications and tweaks are needed to get the plane aboard ship (heck NAVAIR is even planning for it as we speak).

I will NOT be surprised when critics come out of the wood work to trumpet any findings as the end of the world.

Haters hate. 

Its all par for the course.

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