Peter - In principle, if the pilot of the plane could have heard the whistle, he would have heard it in the way described - a high pitched sound, falling in frequency according to the well known Doppler effect. This is the same effect as when say a police siren changes pitch as it approaches and then passes by, and is due to the motion of the object compressing the wavelength of the sound as it approaches the observer - that is increasing its pitch and stretching it as it moves away.

Bomb Whistle - TV Tropes Bomb Whistle - TV Tropes

Use italics (lyric) and bold (lyric) to distinguish between different vocalists in the same song part The container illustrated in Figure 44, marked "Mark 250-LK; 41 Weiss" carries 41 flares of type (v). iii) The 120 lb. smoke bomb is a steel tube welded to a flattened nose-piece and is fitted with a tail. It is 31 in. long overall and 10 in. diameter and is fitted with a powerful ejection charge.The siren rang when the plane used to dive for the bombing. These sounds of siren were louder than the bombs and would panic the enemies & the people(as shown in Dunkirk) Now don’t ask me why sound producers decided to use the sound effect heard from a pilot’s perspective. Fountain — Cone-shaped sparkler, which is lighted on the ground and designed to create, sparks of various colors and intermittent lights when ignited. When found, some or all of the candles are likely to be burnt down to a short stump, and will be attached to the housing of the igniter unit, an aluminium pressing resembling a saucepan 5 in. deep (see Figure 57). Izzie Clarke spoke to Professor Peter Main from King’s College London to sound out George’s question…

WHISTLE) (English Translation) - Genius BLACKPINK - 휘파람 (WHISTLE) (English Translation) - Genius

However, by designing bombs that had a whistle-like attachment, the Germans were utilizing psychological warfare as much as physical warfare. The whistle became associated with death from above, and since the bombing raids in London and other European cities were often done in the middle of the night, that wailing cry became a nightmare-inducing and anxiety-striking sound. Survivors of the London bombing still remember those hauntingwhistles of death from their underground shelters. A larger oil bomb weighing about 250 kg. of the same approximate dimensions as a 500 kg. H.E. bomb has also been dropped. (Note: The Germans call these oil bombs Flammenbomben, i.e. flame bombs, the latest types being known as Flam C 250 C and Flam C 500). Normally when the bomb goes into a dive, the propulsion unit cuts out and the light fades, but cases have been reported where the bomb has glided some minutes before impact, with the propulsion unit cut out; it then falls with a slight whistle. In other cases again, the bomb has dived with the unit still running. In some instances the bomb has turned a complete circle at the end of its flight before diving, but usually it continues on almost a straight course, turning slightly to the left—or port—as it dives. The interval between the propulsion unit cutting out and impact with the ground has varied from 2 seconds to 2 minutes, but is usually between 5 and 15 seconds. d) On one of the specimens a 1 in. red band was painted round the bomb an inch behind the suspension eye-bolt. The body of this bomb was painted dark grey-green or blue-grey.

The principal German incendiary bomb so far used against this country has been the 1 kg. magnesium bomb with a thermite filling as illustrated in Figure 10. This bomb is the colour of aluminium, or may be spray-painted yellow-green, with markings both on the side and on the flat nose. Some historians and soldiers argue that the whistling was intended to warn civilians of the coming danger, so they could have time to take cover or run away, but that theory falls apart when you look at the physics of such a sound. It would be nearly impossible to tell what direction the bomb was coming from by the wail alone, so it could be headed straight for you, or might land 120 yards away. Furthermore, those bomb flight times would be relatively short, so even if you did hear the wailing cry of a falling bomb, you would have very little time to react or “run away”. The whistle may have given enough warning to cover could be taken, or you could fall to the ground and cover your head, but that’s about it. It is named after the Austrian physicist Christian Doppler, who described the phenomenon in 1842. The effect also causes sudden change in pitch. Steel spikes to prevent ricochet are fitted only to bombs specially designed for them (German name Stabbomben, abbreviated to Stabo). Yes I can tell you from personal experience also I was six years old we lived in Haverton Hill, County Durham, England, there was a lot of heavy industry in that area including Dorman & long steel works, the ICI Imperial chemical industries,

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This device consists of a can 11 in. × 6 in. × 4 in., containing one gallon of incendiary jelly, and is slung beneath a canister of the type used in device (b). At one end of the can there is a releasing device mounted on a plate which slides on to the end of the can, and at theIzzie - Someone on the ground would actually hear the pitch increase. In other words, it sounds higher and higher as it approaches. So that means those beloved filmmakers are using the wrong sound… described above. The first type (I.B.E.N.—Figures 12A and 12B) has a 3½ oz. charge and a total weight of 2.2 kg. which will cause the bomb to penetrate further into buildings than the ordinary type. The overall length without tail is 1 ft. 5 in. A stiff wire 13 in. long with metal disc about 1½ in. diameter at the upper end is passed through the ring at the end of the tail vanes down the side of the bomb and through a hole in a safety pin, projecting from the fuze body. On release from the aircraft air pressure withdraws the wire, which falls separately and may be found on the ground some distance from the bomb. The safety pin is then ejected by an internal spring leaving the striker free. On impact the fuze functions igniting the incendiary body immediately and lighting a slow match fuze in the nose, extending the delay before the detonation of the explosive charge up to a maximum of seven minutes. The explosive extension may also break off on impact and detonate separately, some distance from the incendiary body (Figure 12B). Peter - If the missile could fall under gravity further, accelerating all time, after falling about 5,000 metres it would reach the speed of sound and would then emit a sonic bomb, just as supersonic aircraft do when then fly at speeds greater than the speed of sound.