Registering hit positions of practice shells or projectiles - assigning sensor chain to practice target responding to pressure wave to supply evaluating unit with pulses offset w.r.t. time
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JAMBOAT BOAT
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Towed target aircraft - comprises sack material airtight from acoustic sensor mounting to air inlet upstream
FR2625968A1
PROPELLER FOR TRAINING AIRCRAFT WHOSE BLADES ARE MOUNTED WITH DIFFERENT ANGLES OF ARROWS
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ARRANGEMENT FOR ACOUSTICALLY DETECTING FLOOR RAILWAYS AND DETERMINING THE SHORTEST DISTANCE OF THE FLOOR / TARGET
DE3605087A1
Arrangement for attacking helicopters
DE3605086A1
TRAINING OF COMPONENTS LOCATED INTO THE INFLOW TO AIR SCREWS, COVER SCREWS AND / OR FANS TO REDUCE THE ADDITIONAL NOISE YOU MAKE AND TO REDUCE THE ALTERNATE LOAD ON THE PROPELLER BLOWERS
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AIR TOWING TARGET ARRANGEMENT
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Aerial towed target balloon with collapsible envelope - is filled with hit indicating coloured gas and sinks to ground slowly
US4120468A
Remotely piloted vehicle
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Sound reduction device for ducted fan - has curved leading edge on blades to break up resonance points
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Flap controls for surface skimmer - positions flaps interlocked with wing flaps to control transit phase to air cushion hovering
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Float for water surface hydrofoil - has float set under fuselage in front of wings to use bow wave to shield wings
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Light wing for surface skimmer - with demountable frame and flexible wing cover to dampen wave effects
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High speed hovercraft with extra lift - uses flaps to divert thrust from forward engine to under craft
GB1503763A
Ground effect vehicle with wing of triangular plan
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Variable geometry float for hydrofoil or seaplane - has bottom of hull hinged and joined tto upper hull by flexible walls
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High acceleration unmanned remotely piloted small aircraft - has central control unit which rotates about disc shaped lift unit producing fast direction changes
DE2040016A1
Lightweight fuselage sections - with sheet metal, pvc foam and reinforced plastic layers laminated together
