Boeing X-45C Full-Scale Model Revealed, page 2
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reply posted on 25-7-2004 @ 12:04 AM by aerospaceweb
Technically, the JSF program wasn't a competition in the first place. It just evolved into one as the goals of the program became more ambitious. The original goal of JSF, which was called JAST at the time, was to demonstrate that a single fighter could be developed to meet the various needs of the Air Force, Navy, and Marines.

J-UCAS is in a similar situation. It is supposed to be a technology program to test experimental prototypes. That is why the aircraft are given X designations rather than Y, as in the ATF competition between the YF-22 and YF-23. The goal of the program is to "to demonstrate the technical feasibility, military utility and operational value for a networked system of high performance, weaponized unmanned air vehicles to effectively and affordably prosecute 21st century combat missions, including Suppression of Enemy Air Defenses (SEAD), surveillance, and precision strike within the emerging global command and control architecture."

Regardless, most people expect that J-UCAS will ultimately turn into a competition with a winner and a loser, just like JSF did. The winning aircraft will peobably be redesignated as the A-45 or A-47, just like the X-35 becamse the F-35 once Lockheed Martin was awarded a production contract.

However, only time will tell whether the UCAV is truly here to stay. The main advantage of such aircraft is supposed to be lower costs. However, both the X-45 and X-47 have become so complex and sophisticated that they are nearly as large and perhaps as expensive as a manned attack aircraft. If the J-UCAS program does not prove that UCAVs are superior to manned planes, then the entire effort could end up being cancelled before a winner is selected.

For comparison, consider the Global Hawk reconnaissance UAV. It too was intended to be a less expensive aircraft than the manned planes it would replace. However, the UAV is currently so expensive that the USAF has threatened to cancel it and buy more U-2s. I doubt that will happen at this point, but it goes to show that the jury is still out on whether unmanned aircraft truly offer any significant advantages over manned ones.



reply posted on 25-7-2004 @ 02:09 PM by aerospaceweb
Originally posted by E_T
Here's very interesting table:
www.aerospaceweb.org...
(Well, I really don't believe F-15 RCS being so big compared to BUFF)


The table you cite is on my website. If you read the paragraph below it, there are some disclaimers about the data it contains:

"I've seen the values listed for the B-52, B-1A, and B-1B before, so I believe they are probably pretty reliable. The RCS for the F-15, however, seems rather high and may represent a large but very narrow peak from the head-on aspect as opposed to a more typical medianized value. Other sources indicate that the RCS for the F-15 is between 5 and 25 m2, which seems far more reasonable. RCS measurements for the F-22, F-117, and B-2 are highly classified, as the SR-71 may also still be, so I strongly doubt the accuracy of the values listed above. Those numbers are most likely educated guesses, at best. Regardless of these deficiencies, the table does provide a good example of the trends in lowering RCS and the significant improvements that have been made since the advent of stealth aircraft."

[edit on 25-7-2004 by aerospaceweb]

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