On October 5 1939 Finnish AA artillery had 38 heavy guns of which ten were out of order, nine 40 mm and four 20 mm guns and 125 AA-MGs. 'Til the end of November they managed to buy 22 40 mm and 45 20 mm guns as well as a few AA-MGs. The Finns also lacked ammunition: there were 7141 shells for the heavy (76 mm) and 102487 for the 40 mm guns.
When the Winter War broke out on Nov 30 the Helsinki city was protected by 12 heavy and three 40 mm guns and a couple of AA-MGs. The northern Finland was totally vulnerable, only some military formations had a few AA-MGs but there was no air defense whatsoever on the northern side of the line Vaasa-Jyväskylä-Joensuu.
During the War the Finns managed to buy more guns, so on March 13 1940 they had 81 heavy and 100 37-40 mm guns, 90 20 mm guns and 121 AA-MGs. Ammo consumption includes around 4200 heavy and appr. 103000 light shells and some 450000 MG cartridges.
In 1940-1941 the AA defense was strenghtened, so on the 29th of June 1941 there were 104 heavy (75-88 mm) and 368 light (20-40 mm) guns and 203 AA-MGs. Pic seen here are taken on the 21st of March 1943 showing some unknown firefighter and 76 mm Boforses in action. The 5th Heavy AA Battery "Taivas" was equipped with four 76 ItK/27 BK guns (27 indicates the year model and BK stands for Bofors, kiinteä/fixed mount) and positioned on the Taivaskallio hill, Käpylä district.
Kohtalon yöt by Atso Haapanen
SA-kuva photos # 124814, "125486 and 125484