| Technical data |
|---|
| Type |
DB-2, ANT-37 |
| Function |
long-range bomber |
| Year |
1935 |
| Crew |
3 |
| Engines |
2*800hp M-85 (K-12) |
| Length |
15m |
| Height |
?m |
| Wingspan |
31m |
| Wing area |
85m2 |
| Empty weight |
5800kg |
| Maximum Takeoff weight |
11500kg |
| Wing Load (kg/m2) |
135 |
| Power load (kg/hp) |
7.18 |
| Speed at 0m |
301km/h |
| Speed at ?m |
342km/h |
| Takeoff roll |
970m |
| Range |
5000km |
| Ceiling |
?m |
| Payload |
|---|
| Fuel |
?kg |
| Armament |
|---|
| Guns |
? |
| Bombs |
1000kg |
Long range bomber, two-engine development of
DB-1 (ANT-36). Project started in
1934 by
P.O.Sukhoj
team under general supervision of
A.N.Tupolev.
The aim was a bomber with 5000km range, capable to carry 1000kg of bombs at
speed 250km/h. Aircraft had new glazed for nose (navigator's workplace), wing nacells containing radial
engines and retractable landing gear. Large tailfin and tailplane were rounded, unlike ones of the
predecessor.
Small image form
'Military Parade'
Assembly began on January 1
1935.
First aircraft was ready on June 16,
1935.
Four days later tailplane vibrations resulted in fuselage desintegration right behind the wing. Pilot
K.K.Popov and senior engineer M.M.Egorov bailed out safely, but electrician was killed in crash.
Investigations revealed a manufacturing defect in the tailplane adjustment system. Crash resulted
in new aircraft design and manufacturing regulations: every new aircraft with speed exceeding one
of predecessors should be inspected carefully on flatter and buffeting.
Another small image, form
Aviation from A to Z
The second DB-2D ('Dubler') was under construction in parallel with trials. On January 4
(1935)
P.O.Sukhoj
presented to
TsAGI
technical commetee a report on the DB-2 assembly. After crash of the first DB-2,
wing roots and fuselage were strengthened (without much change in weight). It was flown tested at
NII VVS in
1936.
Aircraft fell short on speed, and bombload of 1000kg (good for
1934)
was considered too low in
1936
long range bomber.
DB-2 was not accepted for production as a bomber. Instead, it was
decided to use its design as a base for record-setting aircraft.
