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Torpedo Attack.

Standard attack would be to use two planes coming in on either side of the ship at a 45 degree angle on the bow. US planes would fly at about 120 to 150 feet ASL (above sea level), full throttle, at about 1000 to 750 yards out you release the torpedo. the torpedo travels at around 40 knots and you are at a 45 degree angle that should put your torpedo around just behind the bow to approaching midships. The attack can also be made on the stern but the posibility of a miss is much higher. This type of attack is called "the anvil" attack.
 
Hi Pen,
That FX looks really good.:ernae:
I know how much work it is to create new FX's.
I tried a few times. I just don't have the patience for it.

Regards,
B24Guy


Thanks B-24;

There's not much new to this one. I just took some of the old FX I had and pulled them together in a new file. Long ago I took a bunch of my favorite FX apart one emitter at a time and tested each one individually. I just created a big box in GMax and a DP for it. Then I'd test one portion of the FX at a time. Then I labled all of the ones that weren't ID'ed already. Now I just have to go in and pick and choose which Emitters I want and drop them in a new file. Do a bit of renumbering and adjusting and bingo... A new FX is born.....
 
..makes you wonder about that Bismarck hit...:medals:

Actually it doesn't... The sheer difficulty of it all under heavy fire in the sim lends more credibility to that account of sooooo many aircraft attacking, actually releasing and only one scoring a hit that was almost a miss, just glancing the stern and disabling the rudders. No doubt, the Bismarck was moving at flank speed and doing some hard evasion under that thick defensive umbrella of steel. And reducing their own chances of success, it would appear from accounts that the Swordfish attackers didn't deploy the hammer/anvil tactics. But with so many trained aircrew attacking one ship, somebody had to score something no matter what tactics were used.

Now if you want to wonder about something in that story, ask yourself why not one of those antiquated, slow-moving biplanes were shot down by the Bismarck's heavily-armed AAA crew at such slow speeds and low altitude, many passing right over the ship. Although they had excellent ship2ship gunnery, that air defence crew sucked!
 
Also with us having working dive bombers for the US and so on....

The standard attack with US dive bombers was to approach the target from the stern at an Altitude of 10 to 12 thousand, cut you throttle to zero, while prop rpm is full, open dive brakes and flaps invert and then dive on the target at a 70 degree angle. Release your bomb in between 1500 to 2000 feet, pull out of the dive slam the throttle to full, close flaps and dive brakes and get the hell out of the target area as fast as you can.

Also what made US attacks effective when done right was the ability to co-ordinate the attack. The carriers would try to launch the slower planes first and then time the other ships to take off at a time when they all would appear over the target area. The torpedo planes would be coming in low from the bows of the targets. the dive bombers coming in high from the stern. Then fighters would be covering both high and low to protect the bombers, when done right it was a masterful attack, but when the co-ordination broke down the attacks could be desasters like the loss of the torpedo squadrons at Midway.
 
Bismarck not moving at flank speed or being overly evasive because earlier Stringbag attack caused oil tank leak.

The fact that the attack was carried out by antiquated biplanes is part of the reason so few were lost. Most were actually below the minimum depression angle of AAA, which by design, mostly are high-angle guns.

Conversely due to the mess made of the co-ordination of air power during 'The Channel Dash' all the Swordfish of 825 Sqn IIRC were lost and Lt. Cmdr Esmonde received the VC
 
Bismarck not moving at flank speed or being overly evasive because earlier Stringbag attack caused oil tank leak.

What about the first attack? No pre-damage, full flank speed available with maneuvering, but still my point is no attacking aircraft shot down.

The fact that the attack was carried out by antiquated biplanes is part of the reason so few were lost. Most were actually below the minimum depression angle of AAA, which by design, mostly are high-angle guns.
:bs:...not true...WW2 era battleships on all sides had their AA guns between 50 cal and 40mm designed to repel torpedo attacks - that includes depression angle - check the specs on the Biz first. Battleship AAA armament design accounted for torpedo attacks first, glide and dive bombers second. And think about what you're saying here: you and 49 other guys are manning separate 20mm and 40mm guns, 40 ft to 80 ft above the waterline with max ranges between 2 to 4 miles. Twenty attacking torpedo planes are approaching straight at you in line abreast formations of 5 from 3 miles away at 50-100 ft above the surface moving at only 150 mph max - that's a long time for such slow targets to stay in your sights. Why can't any of you take down just one as they traverse that distance from one side? Plus they all have to do the same 3 mile distance on the other side of the ship as they pass your position and egress the area, which puts them in the crosshairs of your gunners on the opposite side of the ship.

Finally, a good number - if not all - of the attackers actually passed over the ship after releasing. What's that got to do with minimum depression?
 
I thought it had something to do with the early primitave gun control computers. They were not calabrated for such slow aircraft.

Regards,
B24Guy
 
Only larger armament like 5 inch AAA guns used gun control comps...smaller calibers relied on Mark II eyeballing, hence the purpose of gun sights on the mounts.
 
Conceded.

Weather played a major factor too though, the Bismarck almost didn't get the air attack because of this. In fact there was a serious case of mistaken identity and British cruiser Sheffield almost copped it earlier in the same day.

Can you pick a small moving target (approx.40 ft span and height 10 ft) travelling at 150kts flying at low level over the sea, in a storm, towards you from 3-5 miles out? This target being prinicipally made of canvas?
 
And i concede as well...i think this account adds a bit more detail to the picture for all arguments...draw your own conclusions:

The chase

Determined to avenge the sinking of Hood, the British committed every possible unit to hunting down Bismarck. During the early evening of 24 May an attack was made by a small group of Swordfish biplane torpedo bombers from 825 Naval Air Squadron of the aircraft carrier Victorious. One hit was scored resulting in a single fatality (Bismarck's first); however, the blast caused only superficial damage to Bismarck's armoured belt.

The effect of the attack reopened the Bismarck's earlier "wounds". The collision mats which had been used to block further flooding in the bow region had come loose due to constant jarring from evasive action and the firing of the anti-aircraft guns. The packing of the damaged bulkheads was also loosened leading to the complete forward flooding of the forward port boiler room, which was abandoned. This caused the bow to go down further, Lütjens thus ordered speed to be reduced to 16 knots (30 km/h) while the mats were repaired.

For some time Bismarck remained under long-distance observation by the British. At about 03:00 on 25 May, the ship took advantage of her opponents' zig-zagging and performed an almost three-quarter clockwise turn behind her pursuers to escape towards the east and then south-east. Contact was lost for four hours; however, perhaps in awe of British radar capabilities, it appears that the Germans did not realise their good fortune. Lütjens, for reasons that are unclear but possibly believing that Bismarck was still being tracked (despite a communication sent by Group West telling him the opposite),[20] transmitted a half-hour radio message to HQ, which was intercepted thereby giving the British time to work out roughly where he was heading. However, a plotting error made onboard King George V, now in pursuit of the Germans, incorrectly calculated Bismarck's position and caused the chase to veer too far north. Bismarck was therefore able to make good time on 25/26 May in her unhindered passage towards France and protective air cover and destroyer escort. By now, though, fuel was becoming a major concern to both sides.

The British had a stroke of luck on 26 May. In mid-morning a Royal Air Force Coastal Command Catalina reconnaissance aircraft from 209 Squadron, which had flown over the Atlantic from its base on Lough Erne in Northern Ireland across Donegal through a small corridor secretly provided by the Éire government,[21] spotted Bismarck (via her oil slick) and reported her position to the Admiralty. From then on, the German ship's position was known to the British, although the enemy would have to be slowed significantly if heavy units hoped to engage it out of range of German aircraft protection. All British hopes were now pinned on Force H, whose main units were the aircraft-carrier Ark RoyalTemplate:WP Ships HMS instances, the old battlecruiser RenownTemplate:WP Ships HMS instances and the cruiser SheffieldTemplate:WP Ships HMS instances. This battle-group, commanded by Admiral James Somerville, had been diverted north from Gibraltar.

At dusk that evening, and in atrocious weather conditions, Ark Royal launched its Fairey Swordfish for another attack at 19:25. The first wave mistakenly targeted the Sheffield that was by now shadowing the quarry. Although precious time was lost by this incident, it proved beneficial to the British in that the magnetic detonators on the torpedoes used against Sheffield were seen to be defective and for the following attack on Bismarck were replaced by those designed to explode on contact. In a final attack, almost in darkness at 21:05, a hit by a single torpedo (launched by Sub-Lieutenant John Moffat) jammed Bismarck's rudder and steering gear. This rendered Bismarck virtually unmanoeuvrable, increased her list to port and she was able only to steam in a large circle in the general direction of King George V and Rodney, two frontline battleships that had been in pursuit from the west. After extensive efforts to free the jammed rudders, the fleet command finally acknowledged their by-now impossible position in several messages to naval headquarters. Lütjens promised that the ship would fight until the last shell was spent. The cost to the attacking British had been four Swordfish damaged, and another damaged beyond repair.[22]
 
Fairey Swordfish - torpedo doctrine (from Wiki)

...The primary weapon was the torpedo, but the low speed of the biplane and the need for a long straight approach made it difficult to deliver against well-defended targets. Swordfish torpedo doctrine called for an approach at 5000 feet (1500 meters) followed by a dive to torpedo release altitude of 18 feet (5.5 meters).[1] Maximum range of the early Mark XII torpedo was 1500 yards (1400 meters).[2] The torpedo traveled 200 yards (180 meters) forward from release to water impact, and required another 300 yards (270 meters) to stabilise at preset depth and arm itself.[1] Ideal release distance was 1000 yards (900 meters) from target if the Swordfish survived to that distance....


of BISMARCK:

...In May 1941 a Swordfish strike from HMS Ark Royal was vital in damaging the German battleship Bismarck, preventing it from escaping back to France. The low speed of the attacking aircraft may have acted in their favour, as the planes were too slow for the fire-control predictors of the German gunners, whose shells exploded so far in front of the aircraft that the threat of shrapnel damage was greatly diminished.[citation needed] The Swordfish also flew sufficiently low that most of the Bismarck's flak was unable to hit them.[citation needed] (These two points are disputed and may be an urban myth.) The Swordfish aircraft scored two hits, one which did little damage but another which disabled the Bismarck's rudder, preventing it from maneuvering and thus sealing its fate. The Bismarck was destroyed less than 13 hours later....


Also found this...

U.S. Navy Dive and Torpedo Bombers of WWII

By Barrett Tillman, Robert L. Lawson

Page 59-60


and this...

dreadnoughtproject.org - Japanese Aerial Tactics 2
 
According to the Flight Deck officer on board Ark Royal, the weather was so bad that the pitch of the deck on the first strike mission was approximately 35 feet. By the time the second strike left the deck was pitchng almost fifty feet! In his opinion (he later served on the Illustrious in the Pacific) only the Swordfish could have taken off from the carrier on that second strike. More importantly only the Swordfish could have landed on after the mission - the aircraft being so stable at almost stall speed.

Either way it would have been quite hair-raising for the pilots and crews. :isadizzy:

Those are excellent links Blue Devil, thanks. :)
 
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