Ю.Ю. Мерзликин, Г.И. Замолодчиков, В.Н. Наумов
8
Calculation of aerodynamic characteristics of air-cushion
take-off and landing device with controllable eject fences
© Yu.Yu. Merzlikin
1
, G.I. Zamolodchikov
1
, V.N. Naumov
2
1
Central Aerohydrodynamic Institute, NIMK TsAGI, Moscow, 105005, Russia
2
Bauman Moscow State Technical University, Moscow, 105005, Russia
The article shows development and verification of the forces and moments calculation
program, which influence on amphibian aircraft from combined take-off and landing
device with static air-cushion when it moves near surface. Air-cushion has on its sides
flexible fences and eject fences with two transversal pairs of rotary nozzles with variable
pass-through area from one receiver in fore-part and after-part. This take-off and land-
ing device allows changing the location of resultant pressure force in air-cushion sec-
tions, which could be used both for balancing of aircraft in condition of zero trim angle
independently from running over air flow while take-off run, and for acceleration de-
crease by oscillation control in case of movement near rough water and ground surface.
Calculations and experimental researches of the take-off and landing device were carried
out for Nizhny Novgorod «Amphicon» ekranoplan SM-30.
Keywords:
pressure distribution, bottom of the nozzle chamber, amphibious aircraft, vi-
bration control, pressure, air flow, air-cushion.
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