|B 5 - Northrop 8A-1 (1938-1950)|
|Page 1 (of 2)|
Corporation, a subsidiary company to Douglas, had 1933 designed an
attack bomber, the Northrop
8A-1, based on the fast civilian aircraft Northrop Gamma One Gamma was
used in Sweden for the transport of air mail. The bomber, designated
A-17, was purchased by the US military aviation and other variants were
exported to several countries. A license agreement was made between ASJA
and Northrop concerning manufacturing of the 8A-1 in Sweden. ASJA got an
order from the Swedish Air Force in 1938 of a first batch of 40
aircraft. This order would later be followed by others. Totally 103
Northrop 8A-1, in Sweden designated B
5, were delivered to the Air Force.
take part of the latest American aeronautical know-how, nearly 50
American engineers were employed by ASJA in 1938. However, the outbreak
of WWII led the Americans to return back. The last one (sometimes called
”the last of the Mohicans”) left Sweden in March 1940. Nevertheless,
ASJA succeeded to adapt the modern construction techniques with good
original Northrop 8A-1 was fitted with a retractable landing gear. As
the Swedish conditions sometimes necessitated skis during the winter,
the landing gear of the B 5 became fixed. Also the engine type was
changed from the original American to a license-produced NOHAB Mercury
XXIV of 980 hp.
8A-1 was not designed as a dive-bomber, but the Swedish B 5 was adapted
for this technique.
B 5 occurred in the following sub-designations:
pattern aircraft, manufactured in USA and assembled by CVM at
first one built in USA, the remaining in Sweden. Six of the aircraft
equipped with double command. # 7002 - 7065.
aircraft, nearly identical to the B 5B variant. The major difference was
a modified bomb installation.
# 7066 - 7103.
A few aircraft got this new designation when they were fitted
with target towing equipment.
B 5 could carry the same bomb load as the well-known Junkers Ju 87B
”Stuka”; one 500 kg bomb mounted to a bomb-fork or two 250 bombs
together with four 50 kg bombs. As defensive armaments, the B 5 was
fitted with five 8 mm machine-guns.
B 5s were withdrawn from dive-bombing when the SAAB B 17 began to enter
service. In 1944, some of the B 5s were re-built as target towers and
14,55 m. Length 9,70 m.
Height 3,76 m.
MTOW 3.400 kg. Maximum speed 330 km/h.
above: Winter equipped B 5
of Wing F 4 at Frösön.
Air Force # 7018.
Span 14,55 m. Length 9,70 m. Height 3,76 m. MTOW 3.400 kg. Maximum speed 330 km/h.
Photo above: Winter equipped B 5 of Wing F 4 at Frösön. Air Force # 7018.
For the Model Builder
© Lars Henriksson