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#1
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I hadn't realized that the F/A-18F is currently replacing the the F-14 in fleet
service. Why does the two seater need to replace the F-14? Cannot the single seat F/A-18E do the same role? Since the F/A-18F is replacing the F-14, we will be seeing the Hornet at local airshows instead of the Tomcat for the Navy flight demonstrations. Having seen the Hornet just this past weekend, the aircraft was flown in the demo with both seats occupied. I couldn't help but comment about how strong a stomach the back seater must have. The F/A-18F has a much more robust flight display than the F-14; the aircraft seemed more agile in the slow speed regime than the Tomcat. Two maneuvers stood out: the high alpha pitch up, where it suddenly stopped with the shredding air being easily heard during the pitch up. Secondly, during a high alpha - slow speed climb out, the Hornet seemed to do a rudder roll, which almost looked like a light aircraft snap roll. Some recent publications described the F/A-18E & Fs as being almost departure proof. This lends itself to some interesting flight display maneuvering. (More 2 cents, but no politics) VL |
#2
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#3
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Vlado -
Realize that the Navy has some kind requirement for FAC(A) aircraft to be 2-seaters. With the Tomcat leaving, I'm guessing they must have the F model to be able to continue to fulfill this role. I worked with a number of F-14 FACs and F-18F FACs over in Iraq last year, and they were some of the best I've seen ever (Marines and A-10s included). Also, realize that the 2 seats in the Tomcat were needed because of the lack of automation with the AWG-9 radar -- for the intercept role, you needed that RIO back there to work the gadget. The 2 seats in the F-18F are there for a different reason -- it is a striker, and like the F-15E the Super Bug is able to employ a wider range of air-to-ground ordnance more precisely with that 'FO back there guiding it in. I don't agree with the other poster's assertion that "High alpha pitch up is not a wise manuver in ACM." I'm not sure what kind of "Air Combat Maneuvering" that poster has ever done, but in the stuff I've done the ability to point your nose and/or completely stop your forward movement over the ground is *very* valuable. In a single circle BFM fight, that is *exactly* the type of aircraft performance I'd like. Same thing goes for if I'm in a defensive engagement...the ability to slow down quick and remain flying is pretty convenient when you want to set up a flight path overshoot and the hopeful follow-on reversal. People downplayed the ol' Flanker's "Cobra Maneuver" a decade ago not because it didn't have tactical application, but because it wasn't executable in a "real" flanker without the radar removed, etc. You can talk until you're blue in the face about "his wingman will pop you when you get too slow" -- and there is absolutely something to be said about that -- but to say that there is no tactical application, or that it's not wise, is not correct. "MLenoch" wrote in message ... I hadn't realized that the F/A-18F is currently replacing the the F-14 in fleet service. Why does the two seater need to replace the F-14? Cannot the single seat F/A-18E do the same role? Since the F/A-18F is replacing the F-14, we will be seeing the Hornet at local airshows instead of the Tomcat for the Navy flight demonstrations. Having seen the Hornet just this past weekend, the aircraft was flown in the demo with both seats occupied. I couldn't help but comment about how strong a stomach the back seater must have. The F/A-18F has a much more robust flight display than the F-14; the aircraft seemed more agile in the slow speed regime than the Tomcat. Two maneuvers stood out: the high alpha pitch up, where it suddenly stopped with the shredding air being easily heard during the pitch up. Secondly, during a high alpha - slow speed climb out, the Hornet seemed to do a rudder roll, which almost looked like a light aircraft snap roll. Some recent publications described the F/A-18E & Fs as being almost departure proof. This lends itself to some interesting flight display maneuvering. (More 2 cents, but no politics) VL |
#4
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The F-18 and particularly the F-18E/F has significantly better high alpha
capability than the F-14. In a 1v1 environment, that can be decisive, even against an adversary with superior overall energy maneuverability. Or not. A somewhat less maneuverable machine (F-14 etc) with superior excess power can drive the fight into the vertical and eventually gain a positional advantage over the F-18. It takes considerably more skill and patience than to merely point and pull, but it can be (and often is) done. The major disadvantage of entering the high alpha regime is that you are volunteering to be a target. When you throw out the anchor to perform a high alpha fight, you might just as well paint a bullseye on the aircraft .... the bogeys start appearing like flies around a fresh cow pie. And of course there's the problem of egress. Time consuming when you're accelerating from next-to-no knots and particularly frustrating when many of the bogeys can accelerate more quickly and reach considerably more knots than your Bug. As to airshows, I've heard the E/F high alpha moves and square loop are simply dazzling. OTOH, the double dirty Immelman the F-14 performs is a rather stunning display of raw power. R / John |
#5
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On Thu, 1 Jul 2004 05:53:16 -0400, "R Haskin"
wrote: Vlado - Realize that the Navy has some kind requirement for FAC(A) aircraft to be 2-seaters. With the Tomcat leaving, I'm guessing they must have the F model to be able to continue to fulfill this role. I worked with a number of F-14 FACs and F-18F FACs over in Iraq last year, and they were some of the best I've seen ever (Marines and A-10s included). Also, realize that the 2 seats in the Tomcat were needed because of the lack of automation with the AWG-9 radar -- for the intercept role, you needed that RIO back there to work the gadget. The 2 seats in the F-18F are there for a different reason -- it is a striker, and like the F-15E the Super Bug is able to employ a wider range of air-to-ground ordnance more precisely with that 'FO back there guiding it in. I don't agree with the other poster's assertion that "High alpha pitch up is not a wise manuver in ACM." I'm not sure what kind of "Air Combat Maneuvering" that poster has ever done, but in the stuff I've done the ability to point your nose and/or completely stop your forward movement over the ground is *very* valuable. In a single circle BFM fight, that is *exactly* the type of aircraft performance I'd like. Same thing goes for if I'm in a defensive engagement...the ability to slow down quick and remain flying is pretty convenient when you want to set up a flight path overshoot and the hopeful follow-on reversal. People downplayed the ol' Flanker's "Cobra Maneuver" a decade ago not because it didn't have tactical application, but because it wasn't executable in a "real" flanker without the radar removed, etc. You can talk until you're blue in the face about "his wingman will pop you when you get too slow" -- and there is absolutely something to be said about that -- but to say that there is no tactical application, or that it's not wise, is not correct. Well, I'm one of those old fossils that downplay the Cobra bigtime. For a couple of reasons--first, it isn't BFM. It's combat. That means you're in an environment in which you agree to not always win, but you also accept that you can NEVER lose. Second, one should never be in the arena without a wingman. I know that it happens. I've been there. But, when it happens, your first priority is to separate, rejoin and re-engage or separate, hand-salute your fallen comrade and go home. You don't fight one-v-X. Third, his wingman will pop you when you get too slow. Now, all that being said, I'll also concede (reluctantly) that there is such a thing as a "last ditch" maneuver. That's when you're rapidly running out of airspeed, altitude, gas and ideas. When nothing else is available and you're being asked to open wide to bite the big one, then you dust off the last ditch maneuver. It doesn't necessarily win the fight, but it lets you live another thirty seconds to consider your next move. One doesn't resort early to the last ditch maneuver. It might be a once-in-a-lifetime thing. Ed Rasimus Fighter Pilot (USAF-Ret) "When Thunder Rolled" Smithsonian Institution Press ISBN #1-58834-103-8 |
#6
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#7
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On Thu, 1 Jul 2004 17:12:58 -0500, "John Carrier"
wrote: The F-18 and particularly the F-18E/F has significantly better high alpha capability than the F-14. I'd read that in flight testing the Tomcat they flew at 60 and even 90 degrees AOA and that the AOA limitations were mainly due to the crappy TF30. Are the B&D any better or is it indeed an airframe limitation? |
#8
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![]() "Scott Ferrin" wrote in message ... On Thu, 1 Jul 2004 17:12:58 -0500, "John Carrier" wrote: The F-18 and particularly the F-18E/F has significantly better high alpha capability than the F-14. I'd read that in flight testing the Tomcat they flew at 60 and even 90 degrees AOA and that the AOA limitations were mainly due to the crappy TF30. Are the B&D any better or is it indeed an airframe limitation? The F-14 has great pitch rate (more or less equal to the F-18). But it will take that big bite and then stop flying, it can't sustain the very high alpha. There's video somewhere of the test program in which they take the aircraft to somewhere near 90 degrees alpha, but it's momentary and they really couldn't do much with it after the pitch pulse except recover. You could enter a split S in the F-14 at 300 knots in full a/b and slap the stick into your lap. The airplane would give you about 90 degrees of pitch almost instantly, the airspeed would decelerate to about 120 knots just as quickly. Then you had to unstall the tails to pull through the rest of the maneuver ... it wasn't at anywhere near 90 degrees alpha (maybe 25 or so? AOA gauges are calibrated in units which rarely reflect true alpha in degrees). While the TF-30 engines were pretty poor, it was not a function of honoring their limitations. Purely a matter of aerodynamics. R / John |
#9
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On Sat, 3 Jul 2004 06:23:46 -0500, "John Carrier"
wrote: "Scott Ferrin" wrote in message .. . On Thu, 1 Jul 2004 17:12:58 -0500, "John Carrier" wrote: The F-18 and particularly the F-18E/F has significantly better high alpha capability than the F-14. I'd read that in flight testing the Tomcat they flew at 60 and even 90 degrees AOA and that the AOA limitations were mainly due to the crappy TF30. Are the B&D any better or is it indeed an airframe limitation? The F-14 has great pitch rate (more or less equal to the F-18). But it will take that big bite and then stop flying, it can't sustain the very high alpha. There's video somewhere of the test program in which they take the aircraft to somewhere near 90 degrees alpha, but it's momentary and they really couldn't do much with it after the pitch pulse except recover. You could enter a split S in the F-14 at 300 knots in full a/b and slap the stick into your lap. The airplane would give you about 90 degrees of pitch almost instantly, the airspeed would decelerate to about 120 knots just as quickly. Then you had to unstall the tails to pull through the rest of the maneuver ... it wasn't at anywhere near 90 degrees alpha (maybe 25 or so? AOA gauges are calibrated in units which rarely reflect true alpha in degrees). While the TF-30 engines were pretty poor, it was not a function of honoring their limitations. Purely a matter of aerodynamics. R / John Thanks. |
#10
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