There is new news in the world of rotary wing aircraft in Uncle Sam's country, reportedly the United States Army has chosen Bell to build the latest generation tiltrotor aircraft which will replace the UH-60 Black Hawk which incidentally has been operated by the US Army and has been involved in various military operations in war and non-war periods since the 1970s.
Reporting from defenseone.com, Bell Textron was awarded a contract worth US$232 million which is the first installment of a deal worth a total of US$7.1 billion for the development and initial batch of Black Hawk replacements.
It's a major win for Bell, which is considering contracts worth more than $70 billion over the next few decades, depending on how many units are ordered by the U.S. Army and foreign militaries.
The Bell V-280 revolutionizes Army capabilities with range and speed more than double the current fleet. The only long-range strike solution with the ability to maneuver ground forces at the distances and speeds required for multi-domain operations.
Bell first unveiled the V-280 design in 2013, and the prototype first flew on December 18, 2017. Unlike its V-22 predecessor, the wingtip engines were fixed, a move expected to lower maintenance costs.
The Bell Scorecard is focused on ongoing efforts to build, refine and expand some of the V-280's advantages such as speed and range. These massively changed the paradigm in terms of attack and mission range, speed of achieving objectives in time-sensitive combat conditions, and mission viability as they made the aircraft less vulnerable to enemy fire.
As a combined configuration, the tiltrotor concept is to capture and even exceed the performance parameters associated with an effective helicopter by introducing the speed, range and flight path stability of an “aircraft”.
The implications of building an aircraft with this capability are far-reaching, as it could greatly reduce risk by eliminating the need for what the Army calls FARPs, Forward Armament Points, and Refueling Points.
This kind of operational capability aligns with the Army's requirements for the FLRAA program, which was designed years ago as an aircraft capable of introducing breakthrough combat range for helicopter aircraft so that strike forces entering enemy territory would not have to stop and land to rearm and refuel. , thereby exposing himself to enemy attacks.
A fascinating 2017 essay in the Journal of Marine Engineering & Technology explains how advanced tiltrotor designs are built to “transcend” the limitations associated with helicopter flight.
“Helicopters also have major limitations in terms of weight, speed and range due to their aerodynamics. Tiltrotor technology was developed to overcome the above limitations. The aircraft can benefit from the lift generated by the wings and utilize the main rotor as a device for vertical takeoff, landing, and after heeling, as well as to provide the necessary thrust for forward flight in classic aircraft mode.”
The aircraft-like “force” provided by the wings is designed to operate in coordination with the “agility” and low-altitude hovering capabilities enabled by the rotors, thereby adding stability while ensuring maneuverability.
To optimize the advantages associated with Tiltrotors, the essay explains, aircraft need to be engineered with effective “control systems” for attributes such as Fly-By-Wire technology and flight trajectory stability.
