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#21
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"JJ" wrote in message ... "W. D. Allen Sr." wrote: Does anyone know anything about the C-130 that made arrested landings and launches from a Navy aircraft carrier back in the 1960s? WDA end What would happen if the C130 just flew in low to the deck and the cargo was ejected out the back? Could most airdropped stuff take a 10 foot freefall? How about 20 feet? How about the carrier deck? Probably no dents right? I can imagine it "depends" on what is being delivered. How would you pick up return cargo and passengers using such a technique? |
#22
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In message , Tex Houston
writes "Peter Twydell" wrote in message ... Where would they have parked it between flights, had it gone into service? -- Peter How about in the normal parking spot on the base where it was stationed on land. Don't think it was ever contemplated to have a carrier based C-130. Think about it. Regards, Tex That would be a good idea, but as Bill Kambic said, what if the a/c is unable to take off again for several hours? That's a lot of hardware clogging up the deck. -- Peter Ying tong iddle-i po! |
#23
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In message , Jeroen Wenting
writes "JJ" wrote in message ... "W. D. Allen Sr." wrote: Does anyone know anything about the C-130 that made arrested landings and launches from a Navy aircraft carrier back in the 1960s? WDA end What would happen if the C130 just flew in low to the deck and the cargo was ejected out the back? Could most airdropped stuff take a 10 foot freefall? How about 20 feet? How about the carrier deck? Probably no dents right? I can imagine it "depends" on what is being delivered. How would you pick up return cargo and passengers using such a technique? A modification of this technique might do it: http://tinyurl.com/3rnj5 Winding the cable in to recover the cargo would be interesting. I'm not sure if the term 'snatch pilot' would be one to use on the west side of the pond, though. -- Peter Ying tong iddle-i po! |
#25
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"Jeroen Wenting" wrote:
What would happen if the C130 just flew in low to the deck and the cargo was ejected out the back? Could most airdropped stuff take a 10 foot freefall? How about 20 feet? How about the carrier deck? Probably no dents right? I can imagine it "depends" on what is being delivered. How would you pick up return cargo and passengers using such a technique? I would assume that the priority was to get cargo onto the carrier not off. Jay |
#26
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William Hughes wrote:
What would happen if the C130 just flew in low to the deck and the cargo was ejected out the back? Could most airdropped stuff take a 10 foot freefall? How about 20 feet? How about the carrier deck? Probably no dents right? I can imagine it "depends" on what is being delivered. I don't think it's been tried on a carrier, but the system you describe exists. It's called the Low Altitude Parachute Extraction System (LAPES). Problem is, it isn't accurate enough for a carrier. One or two hundred feet short or long, or a few degrees off-axis on land is no big deal, but on a carrier it's the difference between a successful delivery and a massive hole in the transom, a bunch of wrecked deckload aircraft, or a lost cargo. Wouldn't the flight deck be cleared of aircraft? The 1960s picture shows a cleared deck on Forrestal. How fast does the cargo slow down from the parachutes that pull it from the plane? What if a special surface was put on the bottom of the delivery containers to help it slow down quicker? Imagine big keds sneaker soles? :-) It's be easier to just rig the cargo for airdrop and splashdown, then retrieve it with the carrier's helos. This, of course, limits the cargo to the lifting capacity of the helo, which invalidates the entire reason for using a C-130 in the first place. Might as well just stick to the COD. Well wasn't the main reason for trying out the C130 more because of range limitations not payload? Also, if the C130 payload is not a couple of very large items too heavy for a helo but instead many smaller items that could be recovered in multiple helo lifts? Jay |
#27
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No Spam wrote:
the 'freefall' delivery scenario.. I imagine it would be safer to put the cargo in the water on special pallets (already being done) for surface pick-up. Dropping moving cargo onto the flight deck? Well that's just plain scary... I'm sure it *could* be made to work but at what cost; at what risk to ship, acft (C-130 and those on deck), personnel; and why even attempt if there are reasonable alternatives? ("Rig the barricades! Incoming delivery for ATO...") /lac/ What if you want to use an aircraft larger than the C130 - something that could land on the carrier (or maybe couldn't even land) but couldn't take off again. (whoa, what about a situation where the delivery was *SO* important it would be worth it even though the plane is pushed off the side after the delivery." What if the sea state was really bad and in water recovery was not possible? Granted it would make the close approach of the aircraft very difficult and the cargo more "lively" on deck. But hey, we're talking about unusual ideas for the unusual situations that come up in warfight right. Jay |
#28
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"John Keeney" wrote:
Don't forget that besides the ten foot fall the dropped cargo is moving forward at the same speed as the C-130. You'll need a big net to catch it before it zooms off the end of the deck. The plane could stop because it could use its brakes and reverse thrust. Yes, I had not fully considered this aspect - with higher altitude parachute drops the cargo loses most of the aircraft imparted forward velocity by the time it lands. I took a look at some LAPES links http://www.parachutehistory.com/military/lapes.html http://www.edwards.af.mil/moments/do.../94-05-03.html I wonder how slowly a laden C130 could fly yet still generate enough force from the parachutes to pull out the cargo and ensure predictable placement. How about a C17? Jay |
#29
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"Dave Kearton" wrote:
In addition to all that, the damage done by the pallet to the non-skid surface would be extensive. What if there was a special material on the bottom of the pallet that not only helped cushion the landing, slow down the cargo and keep it from sliding around when coming to a stop but also wore or ablated to minimize wear or damage to anti-skid coatings. I recall when Kitty Hawk visited Perth recently it received a $100K resurface, before heading out again. I would imagine the downtime is a much bigger issue than $100k material/labor cost. Jay |
#30
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Okay, here's another one:
Big cargo plane comes in for approach, the back door opens up, an arresting hook comes out. It is attached to a LAPES sled/pallet. The hook grabs an arresting cable, the release force threshold is reached. the cargo is pulled from the aircraft cargo bay and onto the deck. The arresting cable system slows down the load and keeps it from going too far. Jay |
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