Some Russian Glider Projects

Avimimus

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Thank you! This really helps!

I understand that the two halves of the rear wing changed incidence was used for roll and pitch control.

However my translation of Krasilschikov isn't reliable. Did the aircraft have yaw control? Could the pilot control the rudders on the tips of the rear wing? Thanks!

Also attached is a poor quality scan of a photo showing a slightly different angle.
 

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hesham

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Hi,

unfortunately we just know from the designer Mikhail Aleksandrovich Kuzkan's series,the MAK-8,MAK-12
and MAK-15,does anyone know more ?.
 

Cy-27

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Hi,

unfortunately we just know from the designer Mikhail Aleksandrovich Kuzkan's series,the MAK-8,MAK-12
and MAK-15,does anyone know more ?.
RE: MAK-15

My notes refer to M.A.Kuzakov and not M.A. Kuzkan but this may be down to my translation way back at the turn of the century (no online translators just a scrawl in a notepad!).


DESIGNATION: MAK-15 (Glider)
WING SPAN: 10.4 m
LENGTH: 5.32 m
HEIGHT: 1.85 m
WING AREA: 12.56 sq m
WING ASPECT RATIO: 8.6
STABILISER AREA: 1.00 sq m
FIN AREA: 1.25 sq m
KEEL AREA: 0.60 sq m
RUDDER AREA: 1.00 sq m
AILERON AREA: 1.70 sq m
MAXIMUM TAKE OFF WEIGHT: 135 kgs
ACCOMODATION: 1
WING LOADING: 17.9 kgs sq m
WING SECTION: R-III
SINK RATE: 1.00 m per second
MAX AERODYNAMIC QUALITY: 17


MAK-15M (Motorised Glider)

Between 1956-57 the MAI laboratories began modifying a standard M-15 glider to be powered and have vibrating slats. Designer M.A.Kuzakov (M.A. Kuzkan?) provided the aircraft, A.I.Boidyrev devised the vibrating slat system and the drive mechanism.

The engine was from Polyakov and a development engine evolved from his earlier VP-760. The slat took up about 66% of the leading edge.

The engine was mounted adjacent to the centroplane. Experiments showed the functioning slats caused extensive fatigue in the wing structure causing failures. The programme of development ceased when this occured in 1957.

POWERPLANT NO: 1
POWERPLANT TYPE: Polyakov VP-760
POWERPLANT CAPACITY: NOT KNOWN
WING SPAN: 10.85 m
LENGTH: 5.64 m
HEIGHT: 1.5 m
WING AREA: 13.15 sq m
WING ASPECT RATIO: 9
STABILISER AREA: 1.00 sq m
FIN AREA: 1.25 sq m
KEEL AREA: 0.60 sq m
RUDDER AREA: 1.00 sq m
AILERON AREA: 1.70 sq m
ACCOMODATION: 1
FIRST FLIGHT: 1956


SOURCES:

Soviet Gliders by Resov, U.A. - Moscow Mashinostroen
History of Aircraft Design in USSR 1951-1965 (Edited by Yu V Zaspkin and K Yu Kosminkov)
 
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hesham

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Thank you my dear Cy-27,

and for Mr. P.A. Ivensen,the I-1 was a glider Project of 1926,the I-2 was alight aircraft as in Various pre-war Soviet projects
topic,the I-3 was a single seat glider and the I-4 was a high performance sailplane,derivative from I-3 as my dear Cy-27
explained,the I-5 was a postal transport aircraft,I don't know if it was built or not,the I-6 was a single seat low-wing sailplane.

 

hesham

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Hi,

here is a text to explain the designer G.F. Groshev early series,from GN.1 to GN.5,but nore details
are known.
 

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