Krupp 150mm howitzer M. 1905
Bulgarian designation :150-мм скорострелна гаубица Д-14 “Круп”Turkish designation :15/14 sm. sahra obüsüKrupp designation :15 cm schwere Positionhaubitze L/14 mit RohrrucklaufCalibre :149.1 mm L/14Weight of the barrel :870 kgWeight in action :2290 kgBarrel length :2.100 mShield thickness :4 mmBattering charge :W.P. 20x20x1,2 (Nitroglycerine smokeless powder)1st charge : 300 g2nd charge : 385 g3rd charge : 490 g4th charge : 610 g5th charge : 725 g6th charge : 945 gShell weight :41 kgH.E. Shell :41 kg – charge : 2.5 kgMine Shell :41 kg – charge : 8.85 kgShrapnel :41 kg – 1300 bullets x 16 gMuzzle velocity :1st charge : 140 m/s2nd charge : 170 m/s3rd charge : 200 m/s4th charge : 230 m/s5th charge : 260 m/s6th charge : 310 m/sMax. range :1st charge : 2500 m6th charge : 7100 mElevation :+ 43° / - 5°Traversing angle :5°Recoil :1200 mmTransport :drawn by six horsesRemarks :Quick firing heavy howitzer with hydro-spring recoil system, single-motion wedge breech mechanism, traverse on pivot. It was equipped with dial sights, but not fitted for an independent line of sight.The Turkish Army bought three six-guns batteries in 1905. They were delivered in 1908. At the beginning of the Balkan War they were in Odrin, where they were captured by Bulgarian Army in 1913.