Today we are going to stare our eyes on some interesting and secret technology used in the military.
It is very difficult to scoot in front of a radar signal so we need a cloak so that no one identifies the flying machine, the property is called stealth technology Making a stealth plane is comparatively easier than making a stealth chopper because of the noise generated by their rotor blades which gives off a strong radar signature. Though they are flying at low altitudes they are more visible to radar.
This leads the engineer’s more challenging to create a stealth helicopter... The engineer with all their imagination created some stealth choppers but not completely stealth So of them are the modified Hughes 500P of 1972 nickname the quiet one came up with an idea of noise reduction in the rotor.
Boeing /Sikorsky RAH 66 COMANCHE (1996-2004) it was the stealthiest copper in the group which was canceled due to its rising costs and consider technical issues.
Now let’s look at why she is so special
She was appointed in us airforce as a reconnaissance and attack helicopter. That’s the reason behind her name that is a reconnaissance attack helicopter (RAH). She comes from a family of both Sikorsky aircraft/Boeing rotorcraft system On the day of 4th Jan 1991, she knew the taste of the sky for the first time.
She was powered by the pairs of LHTEC T800 which give her a power of 1,563hp Coming to this engine. It is manufactured by the joint venture of RR and honey well The type of engine used for this machine is a turboshaft The length of other engine is 0.8m Dry weight 143kg The type of compressor use are 2CFHP and turbine are 2hp, 2pt The specific fuel consumption is 279g/km/h....... The top speed of this chopper is 324KM/H She can fly up to a range of 2,220KM THE number of built one is only two... The program cost was around thUS $6.9Billon This was decided to use as a replica of OH-58D KIOWA WARRIOR The fuselage was 13m long and composed of composite materials She was wrapped by a radar-absorbing materials coating and infrared suppressant paint, as a result, the Comanche RCS Was stated to be 360 times smaller than that of AH-64 APACHE.
She had a five-blade main rotor and pioneering canted tail rotor assembly She was equipped with sophisticated avionics including a navigation and detection system which enables the pilot to carry the operation even in the night time and also in inclement weather and also she had a Miniaturised Longbow radar Litton laser ring gyro and GPS Nav/Attack system.
The pilot can only control her by fly by wire system. For each of the crew members were provided with pairs of LCD multi-functional display in addition to the helmet integrated display and sight system (HIDSS).
Coming to the Armament
She was loaded with a single Chinese mounted 20mm three-barrel XM301 which was made by the company general dynamics. It is the world lightest 20mm rotary cannon it is also used as both air to air and air to ground attacks the exact name is a three-barrel Gatling style rotary cannon it weights around 36kg length of 180cm it has a three-barrel and a caliber of 20 millimeter the rate of fire is 750 to 1500 rounds per minute Muzzle velocity ( it is the speed of a bullet) 3,380 feet per second But this cannon is not used regularly due to its lack of stealth property. She can also carry 6x AGM 114 HELLFIRE Or 12x AIM 92 STINGE AIR TO AIR MISSILE OR 24X (70mm) hydra 70 air to ground rockets It also has optical stub wings(optimal) to keep 8x hellfire Or 16x stringer or 56x hydra rockets Coming to its dimension Width of 2.0384m Hight 3.3719 m Empty weight 4,218kg Gross w 7,896kg Fuel capacity is 301.6US GAL Main rotor dia 12.19m Main rotor area 443sq ft 5blades Mas speed 324Km/h Crusie s 306km/h Range 485km combat range 280km Service ceiling 4,570m ( max height at which an aircraft can sustain a specified rate of climb 895ft/ min Endurance 2h 30 min.
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