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![]() "Top Secret" wrote in message ... Compared to Allied forces, what was the max they fielded? My understanding is they lacked heavy bombers. The largest bomber aircraft they used in squadron service was the He-177 Grief (Griffon) It was a 2 propellor aircraft with each propellor driven by 2 coupled engines. Built in relatively small numbers (approx 1000) it was not a success being prone to fires and on the few occassions it was used over the UK it took heavy losses. Max bomb load was around 6000 kg but this would require external racks which slowed the aircraft down and reduced range. More typically 1000kg of bombs would be carried internally. It flew most of its sorties over the eastern front. Keith |
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In article ,
"Keith Willshaw" writes: "Top Secret" wrote in message ... Compared to Allied forces, what was the max they fielded? My understanding is they lacked heavy bombers. The largest bomber aircraft they used in squadron service was the He-177 Grief (Griffon) It was a 2 propellor aircraft with each propellor driven by 2 coupled engines. Built in relatively small numbers (approx 1000) it was not a success being prone to fires and on the few occassions it was used over the UK it took heavy losses. Max bomb load was around 6000 kg but this would require external racks which slowed the aircraft down and reduced range. More typically 1000kg of bombs would be carried internally. It flew most of its sorties over the eastern front. Where it suffered from a number of problems which compromized its combat effectiveness. During the Stalingrad campaign, a Gruppe of early He 177s was dispatched to the area to fly supplies in, and evacuees out. (The Luftwaffe had, between Crete, Stalingrad, adn Tunisia pretty much wiped out their transport fleet) It was found that the 177 couldn't carry any more cargo or people than an He 111, at a significant cost in fuel, reliability, and maintenance. The Germans put a lot of effort into debugging the Grief, and, by mid 1944, had it pretty much in shape to use. By that time, the Luftwaffe in the East had two problems - They didn't have the Intelligence resources to find target suitable for heavy bombers, and there's no use sending the airplanes out without some idea of where to go adn what to hit, and they were suffering under severe fuel shortages. A Gruppe-sized heavy bomber raid would have used the entire front's AVGAS allocation for a week. There's not much point in conducting a single raid of minimal effectiveness if it wipes out your own troops air cover better than the Soviets did. -- Pete Stickney A strong conviction that something must be done is the parent of many bad measures. -- Daniel Webster |
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"Keith Willshaw" wrote in message ...
"Top Secret" wrote in message ... Compared to Allied forces, what was the max they fielded? My understanding is they lacked heavy bombers. The largest bomber aircraft they used in squadron service was the He-177 Grief (Griffon) It was a 2 propellor aircraft with each propellor driven by 2 coupled engines. Built in relatively small numbers (approx 1000) it was not a success being prone to fires and on the few occassions it was used over the UK it took heavy losses. The general claims are that they took no losses due to enemy (RAF) action and although this migh be in dispute they certainbly can't be described as 'heavy'. The He 177 had good performance for its day and the most produced version: the He 177 A-5 had solved most of the engine problems which related to oil leakages induced by the stresses of the coupling gearbox igniting on hot exhausts in the tight cowling and vibration problems that sometimes caused con rods to puncture the crank case. Attacks involved a climbout over Germany with a long shallow diving attack at over 400mph that made interception very difficult. Max bomb load was around 6000 kg but this would require external racks which slowed the aircraft down and reduced range. The maximum INTERNAL bombload was 6000 KG with some compromises requred when external weapons such as three CLOS guided anti-shipping missiles the HS 293. It had a bigger internal bombload than the B17. More typically 1000kg of bombs would be carried internally. Clearly preposterous. It flew most of its sorties over the eastern front. Keith |
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Eunometic wrote in message ...
"Keith Willshaw" wrote in message ... "Top Secret" wrote in message ... Compared to Allied forces, what was the max they fielded? My understanding is they lacked heavy bombers. The largest bomber aircraft they used in squadron service was the He-177 Grief (Griffon) It was a 2 propellor aircraft with each propellor driven by 2 coupled engines. Built in relatively small numbers (approx 1000) it was not a success being prone to fires and on the few occassions it was used over the UK it took heavy losses. The general claims are that they took no losses due to enemy (RAF) action and although this migh be in dispute they certainbly can't be described as 'heavy'. So tell us the losses, given in 1944 when the Little Blitz was started the force had 35 He177s in a force of 550 bombers. How many He177 sorties? The He177 first appeared over the UK in 1942, as part of trials, but was mainly used in the west in anti shipping operations. The first He177 destroyed over the UK was on 21 January 1944. The RAF collected the wreckage of 4 He177s in the period 23 February to 2 March 1944, from crash sites in England. As for the He177, the tactic was to climb to over 20,000 feet over France then spend the rest of the flight to and from London in a shallow dive. As for the claim the RAF failed to shoot one down, RAF mosquito night fighters made claims for 8 He177s in the first 4 months of 1944, some of which at least have been confirmed post war. Who are the people making the claims there were no He177 combat losses, given all the Luftwaffe would have had is a failed to return? Also note many of the raids were on the ports being used for Overlord, which flatters the bomber performance since they effectively did not cross the British coast. According to Alfred Price's Luftwaffe Data Book on 27 July 1942 I/KG40 had 16 out of 30 He177s operational, on 17 May 1943 there was 1 unserviceable He177 in Luftflotte 3, there were another 56 He177s present in Lufttwaffenbefelshaber Mitte (Germany) of which 26 were serviceable. On 31 May 1944 Luftflotte 3 held around 50 to 60 He177s in KG40, around 40 serviceable, with Luftflotte Reich holding some 157 in KG1 and KG100, of which 42 were serviceable. After all the USAAF B-17 units flew 200 successful sorties in 1942 before a B-17 was lost to enemy fighters. The numbers matter when it comes to claiming things about losses. The He 177 had good performance for its day and the most produced version: the He 177 A-5 had solved most of the engine problems which related to oil leakages induced by the stresses of the coupling gearbox igniting on hot exhausts in the tight cowling and vibration problems that sometimes caused con rods to puncture the crank case. Attacks involved a climbout over Germany with a long shallow diving attack at over 400mph that made interception very difficult. See above for other reasons why interception was hard, and the bombers came from France, rather hard to stay in a dive from Germany to England, especially one steep enough to do 400 mph in an aircraft with a top speed of around 300 mph. Rather strange to bomb London and the channel ports from Germany when the French airfields were closer. Max bomb load was around 6000 kg but this would require external racks which slowed the aircraft down and reduced range. The maximum INTERNAL bombload was 6000 KG with some compromises requred when external weapons such as three CLOS guided anti-shipping missiles the HS 293. It had a bigger internal bombload than the B17. 6,000 KG is around 13,200 pounds of bombs, the B-17 managed 12,800 pounds internally. Rather marginal difference. And it is clear the He177 internal bomb load is disputed between different references, many giving the 6,000 KG figure as total internal and external. The He177A5 weighed 37,000 pounds empty or around 1,000 pounds more than a B-17G but normal loaded weight of 60,000 pounds was around 5,500 pounds less, the He177 maximum loaded weight of around 68,000 pounds was around 4,000 pounds less than a B-17G. If the fuel capacity figure I have is correct, 2,788 imperial gallons, the He177 could carry around 20,000 pounds of fuel, at 300 gallons to the long ton. You want lots of fuel if you are going to climb high and then try and stay in a 400 mph dive for a long time. You do not want a big bomb load if your objective is to climb high and fly fast. Now add the fact one or two of the bomb bays were often blanked off. My bet is each bomb bay could carry a 2 1,000 kg bombs, so in theory if all three were available you end up with 6,000 kg, but in practice it would seem the maximum internal load was 2,000 or 4,000 kg, given the bomb bay blanking. More typically 1000kg of bombs would be carried internally. Clearly preposterous. Ah yes, the faith based answer. Presumably you have noted while the B-17 could carry 12,800 pounds internally it often operated with 4 to 5,000 pound bomb loads? Similar for other heavy bombers. Bomb load depends on mission. The mission profile of the He177 in 1944 would indicate bomb loads well below maximum. Geoffrey Sinclair Remove the nb for email. |
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"Geoffrey Sinclair" wrote in message ...
Eunometic wrote in message ... "Keith Willshaw" wrote in message ... "Top Secret" wrote in message ... Compared to Allied forces, what was the max they fielded? My understanding is they lacked heavy bombers. The largest bomber aircraft they used in squadron service was the He-177 Grief (Griffon) It was a 2 propellor aircraft with each propellor driven by 2 coupled engines. Built in relatively small numbers (approx 1000) it was not a success being prone to fires and on the few occassions it was used over the UK it took heavy losses. The general claims are that they took no losses due to enemy (RAF) action and although this might be in dispute they certainbly can't be described as 'heavy'. So tell us the losses, given in 1944 when the Little Blitz was started the force had 35 He177s in a force of 550 bombers. How many He177 sorties? The He177 first appeared over the UK in 1942, as part of trials, but was mainly used in the west in anti shipping operations. The first He177 destroyed over the UK was on 21 January 1944. The RAF collected the wreckage of 4 He177s in the period 23 February to 2 March 1944, from crash sites in England. As for the He177, the tactic was to climb to over 20,000 feet over France then spend the rest of the flight to and from London in a shallow dive. As for the claim the RAF failed to shoot one down, RAF mosquito night fighters made claims for 8 He177s in the first 4 months of 1944, some of which at least have been confirmed post war. Who are the people making the claims there were no He177 combat losses, given all the Luftwaffe would have had is a failed to return? It has been claimed. I will track them down. Also note many of the raids were on the ports being used for Overlord, which flatters the bomber performance since they effectively did not cross the British coast. According to Alfred Price's Luftwaffe Data Book on 27 July 1942 I/KG40 had 16 out of 30 He177s operational, on 17 May 1943 there was 1 unserviceable He177 in Luftflotte 3, there were another 56 He177s present in Lufttwaffenbefelshaber Mitte (Germany) of which 26 were serviceable. On 31 May 1944 Luftflotte 3 held around 50 to 60 He177s in KG40, around 40 serviceable, with Luftflotte Reich holding some 157 in KG1 and KG100, of which 42 were serviceable. Nice data but irrelevent to combat losses. After all the USAAF B-17 units flew 200 successful sorties in 1942 before a B-17 was lost to enemy fighters. The numbers matter when it comes to claiming things about losses. The He 177 had good performance for its day and the most produced version: the He 177 A-5 had solved most of the engine problems which related to oil leakages induced by the stresses of the coupling gearbox igniting on hot exhausts in the tight cowling and vibration problems that sometimes caused con rods to puncture the crank case. Attacks involved a climbout over Germany with a long shallow diving attack at over 400mph that made interception very difficult. See above for other reasons why interception was hard, and the bombers came from France, rather hard to stay in a dive from Germany to England, especially one steep enough to do 400 mph in an aircraft with a top speed of around 300 mph. Presumably they would not begin their diving attack immediatly if this was the Hi-lo-Hi attack profile. Rather strange to bomb London and the channel ports from Germany when the French airfields were closer. Max bomb load was around 6000 kg but this would require external racks which slowed the aircraft down and reduced range. The maximum INTERNAL bombload was 6000 KG with some compromises required when external weapons such as three CLOS guided anti-shipping missiles the HS 293. It had a bigger internal bombload than the B17. 6,000 KG is around 13,200 pounds of bombs, the B-17 managed 12,800 pounds internally. Rather marginal difference. And it is clear the He177 internal bomb load is disputed between different references, many giving the 6,000 KG figure as total internal and external. The He177A5 weighed 37,000 pounds empty or around 1,000 pounds more than a B-17G but normal loaded weight of 60,000 pounds was around 5,500 pounds less, the He177 maximum loaded weight of around 68,000 pounds was around 4,000 pounds less than a B-17G. If the fuel capacity figure I have is correct, 2,788 imperial gallons, the He177 could carry around 20,000 pounds of fuel, at 300 gallons to the long ton. Different versions had differnt fuel loads due to tankage and wingspan changes. Also there seem to have been field conversion kits. You want lots of fuel if you are going to climb high and then try and stay in a 400 mph dive for a long time. You do not want a big bomb load if your objective is to climb high and fly fast. Now add the fact one or two of the bomb bays were often blanked off. My bet is each bomb bay could carry a 2 1,000 kg bombs, so in theory if all three were available you end up with 6,000 kg, but in practice it would seem the maximum internal load was 2,000 or 4,000 kg, given the bomb bay blanking. That sounds like a faith based answer. A substantial internal bombload comparable or slightly superior to unmodified allied 4 engined heavies is most likely. I doubt blanking was the issue however. There were variants of the He 177 for instance apart from the He 177 A3 and He 177 A5 there were subdivisions of the aircraft to He 177 A5/R2 or A5/R4 possibly representing maritime and land attack versions with or without part of the bombay blanked and with racks added of to carry a torpedoes or mines or misslies to bulky. I suspect the "R" refers to "rucksatz" or field conversion kits the Luftwaffe was fond of using to adpat its aircraft. More typically 1000kg of bombs would be carried internally. Clearly preposterous. Ah yes, the faith based answer. Then you are agreeing with Wilshaw that the He 177, a bomber the size of a Lancaster,B17,Liberator with a bomb bay doors that extend a substantial length of the fueselage probably carried only 1000kg of bombs at a time a FW 190 single engined fighter carried more than this? Internet resources might be in dispute but there would be books with complete Luftwaffe bomb loading plans for the aircraft available we can check up on. Presumably you have noted while the B-17 could carry 12,800 pounds internally it often operated with 4 to 5,000 pound bomb loads? Similar for other heavy bombers. Bomb load depends on mission. The mission profile of the He177 in 1944 would indicate bomb loads well below maximum. Weight does not impeded dive speed as much as it impedes top speed and climb. Geoffrey Sinclair Remove the nb for email. |
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Eunometic wrote in message ...
"Geoffrey Sinclair" wrote in message ... Eunometic wrote in message ... (snip) The general claims are that they took no losses due to enemy (RAF) action and although this might be in dispute they certainbly can't be described as 'heavy'. So tell us the losses, given in 1944 when the Little Blitz was started the force had 35 He177s in a force of 550 bombers. How many He177 sorties? The He177 first appeared over the UK in 1942, as part of trials, but was mainly used in the west in anti shipping operations. The first He177 destroyed over the UK was on 21 January 1944. The RAF collected the wreckage of 4 He177s in the period 23 February to 2 March 1944, from crash sites in England. As for the He177, the tactic was to climb to over 20,000 feet over France then spend the rest of the flight to and from London in a shallow dive. As for the claim the RAF failed to shoot one down, RAF mosquito night fighters made claims for 8 He177s in the first 4 months of 1944, some of which at least have been confirmed post war. Who are the people making the claims there were no He177 combat losses, given all the Luftwaffe would have had is a failed to return? It has been claimed. I will track them down. To repeat myself, The first He177 destroyed over the UK was on 21 January 1944. The RAF collected the wreckage of 4 He177s in the period 23 February to 2 March 1944, from crash sites in England. Rather hard to claim no losses when the RAF had at least 5 wrecks to look at. Also note many of the raids were on the ports being used for Overlord, which flatters the bomber performance since they effectively did not cross the British coast. According to Alfred Price's Luftwaffe Data Book on 27 July 1942 I/KG40 had 16 out of 30 He177s operational, on 17 May 1943 there was 1 unserviceable He177 in Luftflotte 3, there were another 56 He177s present in Lufttwaffenbefelshaber Mitte (Germany) of which 26 were serviceable. On 31 May 1944 Luftflotte 3 held around 50 to 60 He177s in KG40, around 40 serviceable, with Luftflotte Reich holding some 157 in KG1 and KG100, of which 42 were serviceable. Nice data but irrelevent to combat losses. Not really, losing 1 out of 1,000 is low, losing 1 out of 5 is high losses. For example on 18 April 1944 the Luftwaffe sent 125 bombers to London, 5 of which were He177s. (snip) See above for other reasons why interception was hard, and the bombers came from France, rather hard to stay in a dive from Germany to England, especially one steep enough to do 400 mph in an aircraft with a top speed of around 300 mph. Presumably they would not begin their diving attack immediatly if this was the Hi-lo-Hi attack profile. So the claim is the He177s came from Germany, which would reduce the bomb load for a start. The information I have is they came from France, went high, stayed in a dive to the target and left at low altitude, no climb on the way out. Rather strange to bomb London and the channel ports from Germany when the French airfields were closer. (snip) You want lots of fuel if you are going to climb high and then try and stay in a 400 mph dive for a long time. You do not want a big bomb load if your objective is to climb high and fly fast. Now add the fact one or two of the bomb bays were often blanked off. My bet is each bomb bay could carry a 2 1,000 kg bombs, so in theory if all three were available you end up with 6,000 kg, but in practice it would seem the maximum internal load was 2,000 or 4,000 kg, given the bomb bay blanking. That sounds like a faith based answer. No, straight logic, 3 bomb bays of the same size, given some references talk about 2 1,000 KG bombs as the internal load it becomes quite clear, 2,000 KG is clearly to low given the three bomb bays even given the bomb bays were shallow, since there was a 1,520 litre fuel tank over each. If the bay was blanked off the relevant tank could be changed to a 3,450 litre one. If the 2,800 kg figure for internal bomb load for the A-5 is correct it would mean the version being quoted has at least one of the original bays was blanked off during production. The A-5/R6 was the version that came with only one bomb bay. A substantial internal bombload comparable or slightly superior to unmodified allied 4 engined heavies is most likely. I doubt blanking was the issue however. Ah yes, we are back to faith based answers. It is probable the He177 with all bomb bays in operation could carry around 6,000 KG of bombs internally, at least in some versions. The point is the modifications to carry the glider bombs reduced internal bomb capacity and upped weights, the wing strengthening, and it was largely the modified bombers that ended up bombing England. The He177 had a lower useful load than the standard allied heavies. The initial He177 units used against England in early 1944 were 3rd staffel I/KG 100 and 1st staffel I/KG 40. There were variants of the He 177 for instance apart from the He 177 A3 and He 177 A5 there were subdivisions of the aircraft to He 177 A5/R2 or A5/R4 possibly representing maritime and land attack versions with or without part of the bombay blanked and with racks added of to carry a torpedoes or mines or misslies to bulky. I suspect the "R" refers to "rucksatz" or field conversion kits the Luftwaffe was fond of using to adpat its aircraft. More typically 1000kg of bombs would be carried internally. Clearly preposterous. Ah yes, the faith based answer. Then you are agreeing with Wilshaw that the He 177, a bomber the size of a Lancaster,B17,Liberator with a bomb bay doors that extend a substantial length of the fueselage probably carried only 1000kg of bombs at a time a FW 190 single engined fighter carried more than this? Let us start with the fact the He177s had been modified to carry the glider bombs, modifications which included the bomb bay blanking off, thereby reducing their internal capacity. Then we add the tactics, fly as high as possible and stay in a dive over England, a dive steep enough to convert an around 260 mph maximum continuous cruise to a ground speed of 400 mph. Noting economical cruise was 210 mph at 20,000 feet. The dive angle was steep enough to up speed by around 50%. So no external loads and keep the internal weights down, above average fuel for the high climb and fast cruise. My point is there is a good chance the He177s used against England were only carrying something in the 1 to 2,000 KG range thanks to their modifications and the penalties extracted by the defences. Rather like the fact Lancasters could carry 14,000 pounds of bombs to Berlin but rarely went beyond 10,000 pounds in order keep performance acceptable given the defences. Also if the weights are correct the He177 useful load was around 3 tons less than the B-17G and the Lancaster. And note the depth of the bomb bays, given the fuselage fuel tanks. Internet resources might be in dispute but there would be books with complete Luftwaffe bomb loading plans for the aircraft available we can check up on. So let us know what you find. Presumably you have noted while the B-17 could carry 12,800 pounds internally it often operated with 4 to 5,000 pound bomb loads? Similar for other heavy bombers. Bomb load depends on mission. The mission profile of the He177 in 1944 would indicate bomb loads well below maximum. Weight does not impeded dive speed as much as it impedes top speed and climb. Last time I checked weight stops you from flying high enough to stay in a 400mph dive for a long time. The He177 was not a high flyer, service ceiling around 22,000 feet at maximum load, around 20 minutes to 20,000 feet. There is a difference between the theoretical performance of the different types and the way they were used on operations. Geoffrey Sinclair Remove the nb for email. |
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