It never made it out of Norway.
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Tallboy and Earthquake Deep Penetration Bombs
These massive bombs designed by Dr. Barnes Wallis came near the speed of sound during descent being streamlined and equipped with angled fins that produced spin. Penetrating the ground before exploding they worked by setting off shock waves that would bring down nearby structures. The 12,000 lb (5443 kg) Tallboy dropped from 20,000 ft (6096m) made a 80 ft (24m) deep crater 100 ft (30m) across and could go through 16 ft (4.88m) of concrete. On June 8-9, 1944 eight Lancaster bombers of No. 617 Squadron used the deep penetration Tallboy bomb in an attack against the Saumur Rail Tunnel. The new weapon proved its worth but at the cost of losing 5 of the 8 bombers on this mission. Eventually 854 Tallboy bombs were used, the most note-worthy mission resulting in the destruction of the battleship Tirpitz. The Grand Slam (Earthquake) bomb was of the same design as the Tallboy but larger and heavier weighing 22,000 lb (9972 kg.) The Grand Slam was first used on March 14, 1945 when a force of Lancaster bombers led by Royal Air Force Squadron Leader C.C. Calder attacked the Bielefeld railway viaduct destroying two spans. In another attack against submarine pens near Bremen two Grand Slams pentrated over 7m (23 ft) of reinforced concrete before exploding causing the collapse of the entire concrete ceiling. 41 Grand Slam Bombs were dropped by the end of the war mainly against bridges and viaducts.
Name: Tallboy
Type: Deep Penetration Bomb
Length: 21 ft (6.4 m)
Diameter: 38 in (0.97 m)
Weight: 12,000 lb (5,443 kg)
Warhead: 5,200 lb (2,360 kg) Torpex explosive
Number Used: 854
Name: Grand Slam (Earthquake) Bomb
Type: Deep Penetration Bomb
Length: 26 ft 6 in (7.7 m)
Diameter: 3 ft, 10 in (1.17 m)
Tail Section length: 13 ft, 6 in (4.11 m)
Weight: 22,000 lb (9972 kg)
Warhead: 9,135 lb (4144 kg) Torpex explosive
Number Used: 41
http://www.ww2guide.com/bombs.shtml