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Nov 7, 2021 โ€ข 9 tweets โ€ข 5 min read โ€ข Read on X
๐Ÿ‡จ๐Ÿ‡ณ Cai Hong-4B (CH-4B, reg. AD-34) MALE UAV with visible airborne (C?-Band), datalink antenna, gimballed EO-system and 4 pylons with no mounted carriage.
The ๐Ÿ‡จ๐Ÿ‡ณ CH-4B MALE UAV is the armed variant of the CH-4 (with the -A version being solely for reconnaissance purposes) developed by CAAA, which is part of CASC.
The drone changed dramatically in terms of aerodynamic design compared to it's predecessor, the CH-3; higher lift-to-drag and aspect ratios with V-shaped tail > lower fuel consumption and more endurance. Most of the body is made of alluminium alloy (with the exception of radome).
The drone has a retractable landing gear system equipped with a hydraulic shock adsorber (also used in the ๐Ÿ‡ฎ๐Ÿ‡ท Gaza/Shahed-149 UAV) and is propelled by a ๐Ÿ‡ฆ๐Ÿ‡น Rotax 914 (114 hp/84 kW) 4-cylinder piston engine.
The drone has 4 composite pylons with the ability to carry ๐Ÿ‡จ๐Ÿ‡ณ AR-1 and ๐Ÿ‡จ๐Ÿ‡ณ FT-9 guided munitions; both of them spotted to be in use by ๐Ÿ‡ฉ๐Ÿ‡ฟ Algeria.
Frames from the EO-system; the first in normal mode and the second in IR mode.
Specifications (๐Ÿ‡จ๐Ÿ‡ณ CH-4B for ๐Ÿ‡ฉ๐Ÿ‡ฟ Algeria):
Length: 8.5 m
Wingspan: 18 m
MTOW: 1330 kg
Payload: 345 kg
Endurance: 35-40 hrs
Range: 250 km (within LOS), 2000 km (SATCOM)
Cruise altitude: 23,000 ft
Cruise speed: 180 km/h
They were presumably taken by the ๐Ÿ‡จ๐Ÿ‡ณ YY-12HD EO-system, specifications:
Diameter: 450 x 660 mm
Optical recognition range: +13 km
IR target recognition range: +18 km
Laser rangefinder (LRF): +15 km
Weight: ~60 kg

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The Fajr F.3-A/B is an all-composite 4-seater single-engine piston aircraft intended for pilot training and light transport. It is powered by a ๐Ÿ‡บ๐Ÿ‡ธ Lycoming AEIO-540-L1B5 6-cylinder piston engine (300 hp/220 kW) with a 3-blade ๐Ÿ‡ฉ๐Ÿ‡ช Hoffmann propeller. The -A has a fixed landing... ImageImageImage
...gear while the -B has a retractable one. The flap system is of Fowler-type and the use of composites for the Fajr F.3 structure has increased the overall strength while reducing weight. An emergency gear extension system has been installed in addition to the main extension.
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