X-47B UCAS-D | FerrariChat

X-47B UCAS-D

Discussion in 'Aviation Chat' started by alexD, Nov 23, 2010.

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  1. alexD

    alexD F1 Rookie

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  2. CornersWell

    CornersWell F1 Rookie

    Nov 24, 2004
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    I certainly think unmanned vehicles will play an increasing role in our defenses. And, offenses. I wonder what their limitations are, though. Do we foresee dogfighting? Or will that always be the domain of a pilot in the aircraft? I know they're talking about "the last manned fighter", but, practically, spatial relations are critical for air-to-air operating. While drones orbiting at stable flight levels are clearly appropriate due to the monotonous nature and extended seat time of the mission, fighting's another kettle.

    OTOH, how much dogfighting has been done in the last 20 years? While the fighter school was created to re-focus on dogfighting skills, really, how many dogfights have happened in the last 10 or 20 years? It seems we've developed our long range air-to-air missile capabilities so that we can engage from vast distances and never have to put our pilots or planes in perilous risk. At least, that's what I'm wondering.

    But, landing an unmanned on a carrier? Impressive stuff.

    CW
     
  3. solofast

    solofast Formula 3

    Oct 8, 2007
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    Having been involved in the business (and having been a strong proponent) of unmanned vehicles for over 30 years it is gradifying to see them finally take their place in the defense system. Unfortunately (and this is JMHO) but expensive fighter or bomber like aircraft like the X47B that are unmanned make no real sense.

    Unmanned aircraft need to be cheap. If there isn't a man in it, it is expendable. If it's really expensive, like the X47B, then can you really afford to lose it? At that point why bother to make it unmanned. It complicates the system and I don't see much if any gain. Yes, if one goes down the pilot isn't paraded through the streets of a thirid world country, but really, is that worth the cost? I love the guys in the military as much as anybody, and I don't want to see anybody get hurt or killed, but the cost of such a system has to be weighed against the cost of a manned system and I don't see how that's a favorable proposition. If you are using the unmanned system to attack a specific target and the chance of not getting through is high, you need to be using a cruise missile or a similar one way trip machine to get the job done. That's a lot more cost effective than a system that you have to recover. Just because we have the technology to do this doesn't mean it's a good idea...

    The only advantage that could result is that you could pull more g's if there wasn't a man aboard and you have a much more manueveable system. But I question if that is really necessary in today's battlefield.
     
  4. WILLIAM H

    WILLIAM H Three Time F1 World Champ

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    Maybe not today in Afghanistn & Iraq but who knows whats coming tomorrow ?

    China & Russia are preparing next gen aircraft based on our F22 & F35. No doubt they have spies in the systems.

    What happens if relations seriously sour between USA & China and China gives some to NK to do its dirty work ?

    What happens if China decides to take over Taiwan ?

    What if NK sells this tech to Iran ?

    Lots of things to consider
     
  5. alexD

    alexD F1 Rookie

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    Cruise missiles can't necessarily get through modern air defenses either. Not to mention a cruise missile does one thing: destroys a single target. These aircraft can and will do many things: ISR, SEAD (suppression of enemy air defenses), conventional strike, whatever.

    No. The biggest advantage of unmanned aircraft is their endurance. Human pilots have limited endurance, but unmanned aircraft can stay in the air indefinitely. A predator can stay in the air for pretty much an entire day while other aircraft can do so for a couple hours before needed to be refueled or head home. Not only that, but if you take a pilot out of the plane you also take away the cockpit which increases the design possibilities for the airframe. They can be smaller, more stealthy, carry more fuel, whatever.
     
  6. alexD

    alexD F1 Rookie

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    That's what they thought in Vietnam...so they took guns away from the F-4 and it was a disaster. As aircraft become more stealthy, the chances of an up-close fight increase. However, the fundamental problem with dog fighting unmanned aircraft is that there is a delay of several seconds between a pilot's input and the planes response. This makes them virtually useless against manned fighters in any sort of 'dogfight'.

    There was actually an instance in Iraq where an Iraqi Mig shot down a predator. The air force (or CIA, or whoever was operating them) decided to try to bait the mig and shoot it down so they sent up another predator armed with an air-to-air missile...the drone fired the missile before it was shot down, but it was out of range.
     
  7. joker57676

    joker57676 Two Time F1 World Champ

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    Does this apply when unmanned aircraft are operated relatively close to the zone of engagement???

    I have been wondering for years how much longer pilots will be in the planes doing battle. Seriously, I do not think it will be that much longer until a large percentage of flights are flown from virtual cockpits on the ground. I believe we have the capability to mount pretty impressive cameras on the nose which would make this a reality very soon.

    Mark
     
  8. solofast

    solofast Formula 3

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    #8 solofast, Nov 24, 2010
    Last edited: Nov 24, 2010
    If a missile with a very low RCS can't get past an enemy air defense system an unmanned aircraft with it's larger size isn't going to get thru either. I've done RCS work and size is an issue. If you are going to make something stealthy, a missile is a lot easier to do that with than an airplane, manned or unmanned. Things like gear door openings and weapons bay doors make RCS reduction on real airplanes a lot harder than on a missile. You can do everything that you mentioned with a low cost less system once you have established air superiority. The SEAD mission really requires a good sized weapon that can come in from 40 miles away, and is stealthy enough to get real close before it is detected. I don't see how an X-47, with a weapons bay that has to open up can do that either. The right missile can, but you have to have 40 miles of standoff range or your platform (manned or unmanned) is dead right after (or before) you launch. As I said I'm a big fan of unmanned systems, just not this one.

    When you put the additional computers and communications gear to make the aircraft unmanned there isn't as big a weight savings as you might expect. The X-47 isn't going to have any more endurance than a F-16. If you put external tanks on it, the stealth is gone. And yes, the Predator or Reaper can fly for more than a day, but they are much more simple, lower speed prop driven aircraft, not at all like what they are trying to do with the X-47. One of the biggest problems with the current Reaper is that it doesn't have enough dash speed. The X-47 does that part of the mission better, but it doesn't have the persistence that a predator has. The Next Generation UAS will need to be faster than the Reaper, but it doesn't need to be as fast as the X-47 and it needs persistence that the X-47 doesn't have.

    I think there are a lot of things that an unmanned aircraft can do better than a manned aircraft. Like I said I've been working on unmanned aircraft and missiles for the last 30 years so I'm pretty sure I understand what they can and can't do. I just have a problem with what they are trying to do with this airplane. It doesn't make any sense to me.
     
  9. docmirror

    docmirror Formula Junior

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    UAVs have a job in the coming defense program. But, I have several problems with them. First, as noted above the total cost of the systems(not just the plane) is no cheaper, and so far has shown to be a lot higher than manned planes. The human limitation are real, and they can be a tactical deficiency but it's something that we can work around with crew and plane scheduling. Recon is one of the important tools that UAVs can do, and beyond taking pics and uploading battle damage assessment, that's about it. You could(or we have) set them up to deliver tactical nukes, but now that can be done with a small truck or boat mounted missile system for much lower cost.

    Next, it's not so much as a failing of the UAV but the mfg seem to be making a mission, and then build a UAV to suit it. The A-10 which was first thought to be a useless mission plane has expanded into one of the most important close-in combat tools we have. I know there are missions for the UAVs, and that in some cases they can save a crewed plane from danger, but in many cases a simple manned aircraft could do the job. Example is the US-Mex border. We have a Predator with no human eyes on the prize over the border where four guys in two Cessnas could do the job under 95% of the conditions for a fraction of the cost. Just because we have the technology, doesn't mean it's the best way to do some things. We didn't learn that very well in Vietnam, and the lesson is still there.

    Finally, being a GA pilot, I'm scared to death of the little drone deals. The chief of the Houston PD bought one a while back and started flying it around the city with no advance warning to anyone. Fortunately he was stopped real quick before a disaster could happen. It's see and avoid up there and none of the UAVs are even close to that kind of detection that two eyes on a swivel have.
     
  10. alexD

    alexD F1 Rookie

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    I don't see why the weapons bay is an issue. The F-117 didn't have any problems..well, except for that one time, but there is a lot of speculation about that. The F-22 weapons bay can open and close in something like 1 second, which I wouldn't think is nearly enough time for SAM radars to get a firing solution.

    Furthermore, stealthy cruise missiles are expensive. JASSMs are 700k a pop, and the stealthy cruise missiles in development are going to be even more. Inventories of these missiles will be limited, and in extended conflicts you need reusable assets. You won't have any shortage of dumb bombs that can be fitted with guidance kits and loaded on radar-penetrating aircraft.
    [/quote]

    You're right, but I was thinking in terms of refueling too. Obviously manned fighters can refuel, but there is a limit on how long the pilots can stay in the air. Even if the X-47 has the same unrefueled range as a convention fighter, I've always thought that the Navy envisions this thing staying up in the air much longer (which means you need fewer aircraft to do the same amount of work).

    You bring up good points, especially the cost issue, and obviously know more about this than I do. In order for a platform like this to be viable, it can't cost $100 million each...but I don't think it will. In any case, it's currently just a demonstrator so it may never even grace the decks of our carrier fleets operationally.
     
  11. alexD

    alexD F1 Rookie

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    Unfortunately human eyes can't see much on the ground from 15000 feet, unless you have the same sensors as the predator and the flight hardware/software to view it all in your cockpit. We already have helicopters on the border that can do everything a cessna could do and more, but the obviously don't provide even close to the same level of surveillance capability that a single drone can.
     
  12. solofast

    solofast Formula 3

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    We were part of a demo program where we equipped a Huey with FLIR systems and had the ability to zoom in on a target at a distance with both FLIR and a long range TV system. I got to fly on some of these missions and what the aircraft could do was pretty amazing. Probably not as good a a predator, but this was 15 years ago.

    Problem was, the Border Patrol pilots wanted something that they could use to track the illegals. What I mean by that is that the BP guys wanted to be able to fly at 10 feet off the deck and look out of the helo and track the footprints on the desert floor... There was a 20 ft groomed sand road along the border fence that was an excellent tell tale that somebody walked across there. Once they walked across they could track the footprints just like an old indian tracker, and they took great pride in their tracking abilities. They were happier with a LOH with no doors on it with their head hanging out of the side looking for footprints than they were with the long range FLIR system and all the bells and whistles.

    Until there is a change of tactics and the guys employing the drones are properly using them the situation there isn't going to change. The BP had a few 182's, but they weren't as fond of them as they were the LOH. They felt they coluld do more with the helo than the 182. I always thought that you could cover more ground with the fixed wing, but they wanted to be able to land and get out and arrest/save people as opposed to just spotting them.
     
  13. docmirror

    docmirror Formula Junior

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    Yes, there is a small, or incremental mission enhancement with a Predator. But at what cost? Helicopters are great for low level surveillance but they can be rather costly too. Really, it depends on the mission. I think many times UAVs are a cost center just looking for a mission. sometimes low tech, is low tech and it's ok. Sometimes it's not, but we can spend money in places that it's well needed, and save where we can save. On the border, it's a mission where we can save money, and re-deploy the money where it is needed.
     
  14. alexD

    alexD F1 Rookie

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    #14 alexD, Nov 24, 2010
    Last edited: Nov 24, 2010
    This is in response to solofast as well, but the idea for using a predator on the border is that you get 24/7 surveillance over a MUCH MUCH larger area without really adding any extra man power (which is in short supply for border patrol). The predator is obviously just a spotter, and when the people back in the trailer flying the thing spot something, they can then dispatch border patrol agents to take a closer look if necessary. It's not like border patrol is looking for unnecessary ways to waste what little money they have..if the drones didn't provide a greatly increased benefit, they wouldn't have them. And it will certainly take time for them to develop the tactics necessary to reach its peak effectiveness, but a few helicopters and cessnas cannot do what a drone flying for 24 hours at 15k feet can do in terms of surveillance.
     
  15. docmirror

    docmirror Formula Junior

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    I think you're one of those guys that needs to get the last post in. :) I've made my point. A few Cessnas and pilots and a mechanic would do the same job as the Predator for about 1/10 the cost. Anyway, I've already made my say on appropriations and how they get done - I'm out.

    Peace.
     
  16. 2000YELLOW360

    2000YELLOW360 F1 World Champ

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    I hate to tell you this, but apparently you are arguing with someone in the field who knows what he talking about. I know a little about general aviation, and I suspect the cost of those few Cessnas would be in excess of a million, with say 4 pilots, at an annual cost, including benefits of about 500k, with maintenance averaging say $40/hour of flight. Next thing you know, you've got an accident, and you've got to pay the family of the deceased. With a drone, a couple guys in an office, turboprop speed, lower maintenance costs, and you are looking at about the same cost.

    The Army figured this out a long time ago, that is why they are using the Predators, not Cessnas, which they used when I was in, back in the 60s. Believe it or not, they are very, very cost conscious.

    Art
     
  17. rob lay

    rob lay Administrator
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    They are using 150's on the border. I flew through Marfa and there was a border patrol 150 there on ramp. Talked to the pilots, young guys said they each flew it about 60 hours a month. It was pretty old and beat up, I think the $15k variety Cessna, not the $300k. Pilots making a little more than a CFI building hours, not a bad gig as alternative instructing working towards ATP.
     
  18. solofast

    solofast Formula 3

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    #18 solofast, Nov 24, 2010
    Last edited: Nov 24, 2010
    Sorry Art but you don't have a clue as to what it costs or takes to buy or support a drone system. Here is a quote from a USAF web site...

    The Predator system doesn't fly four aircraft at a time, it flies overlaping missions for 24 hour coverage. One aircraft is being flown, one is being serviced... You get the idea, for 24 hr coverage they need three airframes and a spare.

    The Reaper that is being flown on the border has the same ground station and system support requirements, but it is a much more expensive aircraft, each aircraft costs $10.5 million. Also, the cost of maintenance and fuel for a Reaper is substantially larger than a Predator, or for any manned system that would be GA based.

    If there isn't a threat to the life of the operator, a manned aircraft is going to be a lot less expensive than a unmanned system. The bottom line is that military rated unmanned systems aren't cheap. Compared to keeping an F16 on station they are cheap, but compared to more conventional alternatives for missions like the Border, they are pretty expensive options. The Reaper has longer endurance, but that isn't that much of an issue on the southern border. There are plenty of airports and you could provide better overlaping coverage with lower cost manned aircraft for a lot less than a Reaper.
     
  19. alexD

    alexD F1 Rookie

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    #19 alexD, Nov 24, 2010
    Last edited: Nov 24, 2010
    The CBP does not have the same requirements as the military...each predator B "suite" (for a single airframe) costs $15m, and they don't need to buy them in sets of four.



    How many Cessnas/Blackhawks would you need in the air at a time to do the work of one Predator? First of all, the answer is "it wouldn't matter" unless you put a comparable sensor suite on all of those aircraft. If you were to do that, the cost would probably far outreach that of one Predator. A predator with IR camera can see clearly at least 7 miles in every direction at night from three miles up. With radar and GMTI, they can still track targets in any weather. So once again, how many cessnas/blackhawks would you need in the air at one time to get the same situational awareness on 15 miles of border, and how many would you need on standby to maintain the same endurance? I bet you'd need more than two hands and two feet to count it.

    This isn't a cost/benefit analysis, but I think it's pretty clear that these drones are more than an "incremental" upgrade to the current aerial surveillance capability of CBP. Whether the cost is justified, the jury is still out on that one.
     
  20. MarkPDX

    MarkPDX F1 World Champ
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    I'm not sure if the cost of pilots/operators of UAVs is much if any less than a Cessna, if anything it's probably a lot more. You still have rated bodies sitting in a chair but in the case of a UAV it's probably somebody that has gone through a bunch of expensive military training. The small Army UAVs may be a lot cheaper to fly but all the Predator size stuff has some poor SOB who wishes he could be in a real cockpit. One of the saddest sacks I have met in the USAF was a B-1 pilot who got non-vol'ed to Predators.
     

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