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On Wed, 24 Sep 2003 09:16:49 GMT, Guy Alcala
wrote: The Stirling III and Halifax III still seem to have a major differential in terms of operational ceiling, which I can only put down to structure weight and the wing. snip A better operational ceiling comparison would be between the Stirling III and Halifax II, as the latter has the original 98(?) foot wing (some sources claim that early Halifax IIIs had the original wing; I don't have enough info to say). The Halifax II is still better but not much, and I expect the difference is largely due to the lower weight, and maybe the drag of the Stirling's nose turret. [quick driveby] The early Halifax II's (i.e. those produced throughout 1941-42) had the Mk I nose turret, and clocked in at 34,980 lbs with an auw of 60,000lbs with a 98 ft 8in wingspan. The Stirling III seemed to come in at something like 42,000lbs with auw's somewhere over 60,000lbs (figures I have vary between 61,000 and up to 70,000lbs), so there's a couple of tons of weight difference before the operational load gets included. The Stirling Mk III couldn't get above 17,000 feet (a couple of thousand feet below routine operational heights for the Halifax), and had a lower rate of climb than the Halifax. Early Halifax Mk IIIs did have the shorter-span wings before they got the extended 103 ft 8in wingspan. Gavin Bailey -- Another user rings. "I need more space" he says. "Well, why not move to Texas?", I ask. - The ******* Operator From Hell |
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The Revolution Will Not Be Televised wrote:
On Wed, 24 Sep 2003 09:16:49 GMT, Guy Alcala wrote: The Stirling III and Halifax III still seem to have a major differential in terms of operational ceiling, which I can only put down to structure weight and the wing. snip A better operational ceiling comparison would be between the Stirling III and Halifax II, as the latter has the original 98(?) foot wing (some sources claim that early Halifax IIIs had the original wing; I don't have enough info to say). The Halifax II is still better but not much, and I expect the difference is largely due to the lower weight, and maybe the drag of the Stirling's nose turret. [quick driveby] I sure hope not. I had enough experience with those living in East Oakland in the early '80s (per capita murder capital of the U.S. for several years). OTOH, they had generally execrable aim, which made the intended targets relatively safe but put the innocent bystanders at risk. The closest one I was exposed to was at a distance of about 50 feet, but fortunately the shooter was facing away from me and firing into a non-moving car with two guys sitting in it, so there was little chance of me getting hit by the odd round. He and his homeys pulled up in a stolen van, he jumped out the side door and opened fire, but only managed to crease one guy in the arm and IIRR the other got hit by some flying glass from one of the windows. I later counted only nine rounds that hit the car (semi-auto machine pistol of unknown type, fired from the hip), distributed all over it (two just creased the roof), from a distance of about 5 ft. Pathetic aim, especially considering that these guys were likely to return the favor. And all because the shooter's sister had taken offense at something one of the guys in the car had said to her an hour or two earlier. The early Halifax II's (i.e. those produced throughout 1941-42) had the Mk I nose turret, and clocked in at 34,980 lbs with an auw of 60,000lbs with a 98 ft 8in wingspan. The Stirling III seemed to come in at something like 42,000lbs with auw's somewhere over 60,000lbs (figures I have vary between 61,000 and up to 70,000lbs), so there's a couple of tons of weight difference before the operational load gets included. I've often wondered at that 42,000 lb. figure, but I think Geoffrey provided some numbers earlier in the thread. The Stirling Mk III couldn't get above 17,000 feet (a couple of thousand feet below routine operational heights for the Halifax), and had a lower rate of climb than the Halifax. Early Halifax Mk IIIs did have the shorter-span wings before they got the extended 103 ft 8in wingspan. So I'd like to know how high the Halifax IIIs could operate with the short wings. Guy |
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