Download or read book Instrument flight rules Evaluation AH1 G Helicopter with Tractor Tail Rotor written by John R. Burden and published by . This book was released on 1972 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book AH 1G Lateral Flight Performance Test written by Leslie J. Hepler and published by . This book was released on 1972 with total page 21 pages. Available in PDF, EPUB and Kindle. Book excerpt: The lateral flight performance of the tractor-tail-rotor-configured AH-1G helicopter was evaluated at gross weights of 8500 and 9500 pounds. The AH-1G is capable of 0.53g and 0.38g accelerations in right and left lateral flight, respectively, at 8500 pounds. At a 9500-pound gross weight, acceleration was 0.23g to the right and 0.20g to the left. Aircraft handling qualitites and time required to attain maximum lateral velocity are dependent upon rate and type of control application. A step-type lateral control input permitted rapid attainment of accelerating attitude but produced yaw oscillations which resulted in loss of directional control and caused high pilot workload in stabilizing power and aircraft attitude. Ramp inputs delayed establishment of the accelerating attitude. A modified pulse input induced negligible roll and yaw oscillation and produced rapid establishment of the desired roll attitude. Direction-of-flight reversals induced large power transients that frequently exceeded the transmission torque limits. Precise heading and pitch attitude could not be maintained during the reversals. Airspeed in lateral flight could not be determined without special airspeed measuring devices. The sideward airspeed limit was exceeded frequently in left lateral flight with no warning or cue to the pilot that the limit had been reached.

Download or read book Engineering Flight Test AH 1G Helicopter Heavyweight Autorotational Evaluation written by Joseph C. Watts and published by . This book was released on 1974 with total page 30 pages. Available in PDF, EPUB and Kindle. Book excerpt: Engineering flight tests were conducted by the United States Army Aviation Systems Test Activity to determine if any adverse autorotational entry or landing characteristics would preclude increasing the maximum operational gross weight of the AH-1G helicopter above the current 9500 pounds. A production AH-1G helicopter with tractor tail rotor was flown 14.4 hours at Edwards Air Force Base, California between 26 September and 12 October 1973 in the Hog configuration. Autorotational entries were performed successfully at gross weights from 9000 to 10,000 pounds from climbs, level flight, and dives. (Modified author abstract).

Download or read book Engineering Flight Test AH 1G Helicopter with Model 212 Tail Rotor Part I Load Survey written by Leslie J. Hepler and published by . This book was released on 1973 with total page 128 pages. Available in PDF, EPUB and Kindle. Book excerpt: The United States Army Aviation Systems Test Activity conducted a limited tail boom flight load survey of the AH-1G helicopter equipped with a Model 212 tail rotor. Tests were performed to obtain base-line tail boom load data with a tractor tail rotor installation, then repeated with the Model 212 tail rotor installed on the same helicopter. This installation included changes to the pitch links and pitch control tube to accommodate the Model 212 tail rotor; however, the remaining components of the tail rotor drive system were standard AH-1G items. (Modified author abstract).

Download or read book Instrument Flight Evaluation AH 1G Helicopter written by Gary L. Skinner and published by . This book was released on 1975 with total page 123 pages. Available in PDF, EPUB and Kindle. Book excerpt: A limited evaluation of handling qualities and operational performance was conducted on the AH-1G helicopter to determine its suitability for operation under instrument flight conditions with the stability and control augmentation system ON and OFF are discussed. Tests were conducted intermittently from February 1973 to December 1974. Ten shortcomings were identified, and it is recommended that two of these should be corrected prior to release for flight in instrument conditions.

Download or read book Flight Test Guide written by United States. Flight Standards Service and published by . This book was released on 1977 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Evaluations of Helicopter Instrument flight Handling Qualities written by S. R. M. Sinclair and published by . This book was released on 1982 with total page 64 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Basic Helicopter Handbook written by United States. Flight Standards Service and published by . This book was released on 1978 with total page 128 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Helicopter Test and Evaluation written by Alastair Cooke and published by John Wiley & Sons. This book was released on 2009-02-12 with total page 384 pages. Available in PDF, EPUB and Kindle. Book excerpt: Although a number of texts on helicopter aerodynamics have been written, few have explained how the various theories concerning rotorborne flight underpin practical flight test and evaluation. This book combines theoretical information on aerodynamics, stability, control and performance with details of evaluation methodologies and practical guidance on the conduct of helicopter flight tests. For each topic the relevant theory is explained briefly and followed by details of the practical aspects of testing a conventional helicopter. These include: * safety considerations * planning the tests * the most efficient way to conduct individual flights Where possible typical test results are presented and discussed. The book draws on the authors' extensive experience in flight test and flight test training and will appeal not only to professionals working in the area of rotorcraft test and evaluation, but also to helicopter pilots, rotorcraft designers and manufacturers and final year undergraduates of aeronautical engineering

Download or read book Flight Instructor Instrument Rotorcraft helicopter Written Test Guide written by United States. Flight Standards Service and published by . This book was released on 1977 with total page 76 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Engineering Flight Test AH 1G Helicopter with Model 212 Tail Rotor written by Gary L. Skinner and published by . This book was released on 1973 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Government Reports Announcements Index written by and published by . This book was released on 1979 with total page 944 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Engineering Flight Test AH 1G Helicopter with Model 212 Tail Rotor written by John I. Nagata and published by . This book was released on 1973 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Instrument Flight Rule Capability Evaluation CH 54B Tarhe Helicopter written by Edward E. Bailes and published by . This book was released on 1971 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Engineering Flight Test AH 1G Helicopter Hueycobra Phase D Airworthiness and Flight Characteristics Part 2 Performance written by Rodger L. Finnestead and published by . This book was released on 1970 with total page 220 pages. Available in PDF, EPUB and Kindle. Book excerpt: Within the scope of this test, the AH-1G helicopter is suitable for the armed helicopter mission provided the insufficient directional control power and inadequate tail rotor drive system torque limitations are corrected. A directional control margin of 10 percent while hovering is the minimum acceptable for normal operation. Installation of the engine inlet screens and the engine particle separator decrease the performance capability of the AH-1G when maximum power available is the limiting parameter. The level-flight performance capabilities of the AH-1G vary with longitudinal cg location and improve as the cg moves aft. The degradation of hover performance capability when hovering in adverse crosswind is significant. The excellent climb performance, particularly from SL to 10,000 feet, enhances the capability of the AH-1G for the attack helicopter mission.

Download or read book Instrument flight rules Capability Evaluation CH 54B Tarhe Helicopter written by Edward E. Bailes and published by . This book was released on 1972 with total page 140 pages. Available in PDF, EPUB and Kindle. Book excerpt: Airworthiness and flying qualities tests were conducted on the Sikorsky CH-54B Skycrane helicopter to determine its instrument-flight-rules capability and compliance with MIL-H-8501A. The flying qualities of the CH-54B in the Army pod configuration are acceptable for flight under instrument-flight-rules conditions with both automatic flight control systems operating. The CH-54B should be equipped with dual visual omnirange receivers and a marker beacon receiver. Additional testing should be accomplished to quantitatively determine the instrument-flight-rules capability of the CH-54B with external single-point sling loads.

Download or read book Review of Airworthiness Standards for Certification of Helicopters for Instrument Flight Rules IFR Operation written by J. J. Traybar and published by . This book was released on 1979 with total page 247 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report reviews the Airworthiness Standards for Certification of Helicopters for Instrument Flight Rules Operation. It specifically reviews the Interim Criteria, Federal Aviation Regulations, Advisory Circulars and other pertinent documents associated with the certification of Helicopters for Instrument Flight. A review of current technology, existing data applicable to IFR helicopter operation and certification procedures is accomplished. Identification of specific airworthiness requirements for helicopters operating in IFR conditions is studied and special attention is given to aircrew manning configurations, pilot flight-control workloads, helicopter trim, static stability, dynamic stability, handling qualities, analysis of time history data and documentation procedures, augmentation systems, autopilots and a review of certain flight test techniques. An analysis was made of the numerous helicopters recently certified for IFR flight in order to establish the various systems utilized including avionics systems, display systems and autopilot type systems. Special emphasis was centered on the study of the most critical IFR flight phases depicted by high workload cruise conditions and marginal stability conditions due aft c.g. conditions, descent, and high climb rate conditions during IFR approaches and missed approaches for Category I procedures. (Author).