INDIAN ARMED FORCES CHIEFS ON OUR RELENTLESS AND FOCUSED PUBLISHING EFFORTS
SP Guide Publications puts forth a well compiled articulation of issues, pursuits and accomplishments of the Indian Army, over the years
"Over the past 60 years, the growth of SP Guide Publications has mirrored the rising stature of Indian Navy. Its well-researched and informative magazines on Defence and Aerospace sector have served to shape an educated opinion of our military personnel, policy makers and the public alike. I wish SP's Publication team continued success, fair winds and following seas in all future endeavour!"
Since, its inception in 1964, SP Guide Publications has consistently demonstrated commitment to high-quality journalism in the aerospace and defence sectors, earning a well-deserved reputation as Asia's largest media house in this domain. I wish SP Guide Publications continued success in its pursuit of excellence.
- Indian Air Force Aims for Full Indigenous Inventory by 2047 — Air Chief Marshal A.P. Singh
- General Upendra Dwivedi takes over as the Chief of the Army Staff
- Rajnath Singh assumes charge as Defence Minister for the second consecutive term
- Admiral Dinesh K. Tripathi assumes Command of the Indian Navy as 26th Chief of the Naval Staff
- Prime Minister witnesses 'Bharat Shakti' – a Tri-Services Firing and Manoeuvre Exercise in Pokhran, Rajasthan
Sikorsky Flight-Tests Scalable 'Rotor Blown Wing' UAS for DARPA Project
The VTOL tail sitter features proprotors for flight efficiency
Sikorsky, a Lockheed Martin company, is conducting flight tests to mature the control laws and aerodynamics of a novel vertical takeoff and landing uncrewed aerial system (VTOL / UAS). The flight tests are intended to prove the efficiency and scalability of a twin proprotor 'rotor blown wing' configuration that sits on its tail to take-off and land like a helicopter, and transitions easily to horizontal forward flight for long-endurance missions, such as intelligence, surveillance, reconnaissance and targeting.
The ongoing flight tests support the Ancillary initiative by the Defense Advanced Research Projects Agency (DARPA), which seeks to develop a Class 3 UAS VTOL X-Plane that can operate in most weather conditions from ship decks and unprepared surfaces without infrastructure. Sikorsky is one of several competitors down-selected to advance their UAS conceptual designs into the next development phase.
The term 'rotor blown wing' refers to the constant airflow from the proprotor wash across the wing. Sikorsky chose the design to reduce drag on the wing in hover mode and when transitioning to forward flight, and to increase cruise efficiencies and endurance.
The design is just one of the many ways Sikorsky is advancing 21st Century Security® technologies and innovations, said Igor Cherepinsky, director of rapid prototyping group Sikorsky Innovations.
"Flight tests are underway to verify our tail-sitting rotor blown wing UAS can launch and land vertically with high stability, and cruise efficiently on wing," said Cherepinsky. "Key enablers to flight maneuverability, and future vehicle scalability, are our MATRIX autonomy flight control system, and an articulated rotor system similar to those in traditional helicopters."
For the flight tests now underway, Sikorsky is flying a proof-of-concept vehicle powered by a battery. If selected to produce an air vehicle for a future ANCILLARY phase, Sikorsky plans to build a 300-pound hybrid-electric version to include a 60-pound ISR payload.
Sikorsky Innovations was formed in 2010 to overcome technological challenges to rotary wing speed, autonomy, and intelligence. Learn more about the engineering team's achievements in speed and intelligence, and its current focus on electrification and VTOL UAS to support 21st Century Security® missions.
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