VANLENG GOL, TUMDANG LEH PIANDANG KALININ K-7 AIRCRAFT
Oct. 2, 2018: Soviet Union ten heavy experimental aircraft Kalinin K-7 kici 1930s in na bawl in na test uh hi. Kalinin K-7 pen a design World War I leh civil war pilot Konstantin Kalinin in ama makaihna tawh Kharkiv ah a bawl ahi hi. Kalinin K-7 wingspan pen tu lai-in USte bombers gol Boeing B-52 Stratofortress tawh kibang pian a, ahih hangin a kha kiim (wing area) gol zaw hi. Jet aircraft age kipat hun ma adingin K-7 aircraft pen vanleng kibawlte lakah a golpen pawl hi. A kha "wing leading edge" ah tractor engines guk leh a mai lam-a a pusher configuration dingin single engine kizang hi.
K-7 original design ten a kha (wing leading edge) ah engine guk thuah dingin na ngen uh a, ahih hangin a kha a gik luat manin engine nih kithuah beh hi (central passenger pod trailing edges of the wing ziat leh vei lam ah khat tuak). Ahih hangin Nemecek in a laibu gelhna ah pusher engine khat bek kithuah beh a, engine sagih kizang hi ci-in gen hi.
Civil transport configuration ding hi leh passengers 120 tuang thei in, laikhak (mail) 7,000 kg (15,000 lb) thawl ding hi. Galkap puakna (troop transport) dingin kizang hi leh galvan tawh kithuam paratroopers 112 tuang thei ding a, bomber configuration hi leh thau 8 x 20mm autocannons, 8 x 7.62mm machine guns leh bombs 9,600 kg (21,200 lb) kithuah thei hi.
1931 panin a bawl kipan a, Kharkiv ah kum nih sungin K-7 kizo hi. K-7 masa pen 11 August 1933 kilengsak a, a engine frequency a air-frame in nasep ding bangin lim takin sem thei lo ahih manin nasia takin kilok;kising (vibrate) hi. Hih bangin a kilok gawp buaina hamsa ven' sakna dingin kitomsak in a mei kisausak ahih manin a kilok gawpna kikhiamsuk thei hi. K-7 vanleng test flights in sagih vei a kilengsak khit nungin a vanleng mei lam-a pumpi leh a mel puak zia lawhsapna (structural failure) hangin 21 November 1933 in kia hi.
K-7 aircraft kibawl lam leh sagih vei test flights in a kilengsak lam tu nai diakin "political lamsang ah poimawhna lianpi nei hi" ci-in USSR ah steel import loin a bawl Pravda in pulakkhia pan hi. K-7 aircraft tuahsiatna hangin a sunga tuang mi 14 leh lei-a om mi khat in sihna tuak hi. A vanleng tuahsiatna pen kumpi vante siatsakna ahih kei leh kumpi dona (sabotage) hang hi dingin ki-ummawh ahih manin a tuahsiatna thukanna nei dingin investigating committee kiphuankhia a, tua ah state security organization, Joint State Political Directorate (OGPU) kihel hi.
K-7 aircraft test flights in sagih vei a kilengsak khit nungin a kiatna hang pen Russian aviation press in politics leh Russia long-range vanleng gol Andrei Tupolov design office kikal a kumpi vante suksiatna ahih kei leh kumpi dona (sabotage) hang hi ci uh hi. K-7 aircraft tawh kibang (prototypes) nih bawl behna dingin 1933 in order a kibawl hangin a project a kizawh ma 1935 in kikhawlsan hi.
K-7 General characteristics
Crew: A tawm pen 11
Capacity: 120 passengers (civilian configuration ah)
Length: 28 m (91 ft 10 in)
Wingspan: 53 m (173 ft 11 in)
Height: 12.4m (estimated to top of engine shell)
Wing area: 454 m² (4,886.8 ft²)
Empty weight: 24,400 kg (53,793 lb)
Loaded weight: 38,000 kg (83,776 lb)
Powerplant: 7 × Mikulin AM-34F V-12 piston engines, 560 kW (750 hp) each
Capacity: 120 passengers (civilian configuration ah)
Length: 28 m (91 ft 10 in)
Wingspan: 53 m (173 ft 11 in)
Height: 12.4m (estimated to top of engine shell)
Wing area: 454 m² (4,886.8 ft²)
Empty weight: 24,400 kg (53,793 lb)
Loaded weight: 38,000 kg (83,776 lb)
Powerplant: 7 × Mikulin AM-34F V-12 piston engines, 560 kW (750 hp) each
Performance:
Maximum speed: 225 km/h (121 knots, 140 mph)
Service ceiling: 4,000 m (13,123 ft)
Wing loading: 84 kg/m² (17 lb/ft²)
Power/mass: 103 W/kg (0.06 hp/lb)
Role Heavy bomber/Civilian transport
National origin: Soviet Union
Status: Destroyed in crash
Number built: 1
Maximum speed: 225 km/h (121 knots, 140 mph)
Service ceiling: 4,000 m (13,123 ft)
Wing loading: 84 kg/m² (17 lb/ft²)
Power/mass: 103 W/kg (0.06 hp/lb)
Role Heavy bomber/Civilian transport
National origin: Soviet Union
Status: Destroyed in crash
Number built: 1
Source: Wikipedia
@Thang Khan Lian #ZUNs
@Thang Khan Lian #ZUNs







