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Standard

BITE GLOSSARY

1986-12-18
CURRENT
ARINC612
The purpose of this standard is to provide a source of definitions of terms and acronyms commonly used in the air transport maintenance community for test and evaluation with an emphasis on terms applicable to BITE.
Collection

AeroTech - Flight Sciences, 2011

2011-10-18
This collection features 12 technical papers that deal with aircraft design, design methods, aircraft design software; applied aerodynamics and stability and control to aircraft design; propulsion and performance; development of personal transportation vehicles and components, focusing on CTOL and VTOL hybrid flight vehicles, roadable airplanes and flying cars; and Computational Fluid Dynamics related topics. ...This collection features 12 technical papers that deal with aircraft design, design methods, aircraft design software; applied aerodynamics and stability and control to aircraft design; propulsion and performance; development of personal transportation vehicles and components, focusing on CTOL and VTOL hybrid flight vehicles, roadable airplanes and flying cars; and Computational Fluid Dynamics related topics.
Standard

In-Flight Thrust Determination for Aircraft with Thrust Vectoring

2022-06-14
CURRENT
AIR6007
The purpose of this document is to provide guidance on in-flight thrust determination of engines that are impacted by intentional or unintentional thrust vectoring. However, as indicated in the Foreword, the field of aircraft thrust vectoring is varied and complex. For simplicity and coherence of purpose, this document will be limited in scope to multi-axis thrust vectoring nozzles or vanes attached to the rear of the engine or airfame; single-axis thrust vectoring and unintentional thrust vectoring (fixed shelf or deck configuration) are special cases of this discussion. Specifically excluded from this scope are thrust vectoring created primarily by airframe components such as wing flaps, etc.; lift engines, propulsive fans and thrust augmenting ejectors; and powerplants that rotate or otherwise move with respect to the airframe.
Standard

Rotorcraft: Application of Existing Aircraft Designed Tires, Wheels and Brakes

2021-04-23
CURRENT
ARP5632
This document covers recommendations for the application of existing qualified and approved in-service fixed wing aircraft tires, wheels and brakes to military and commercial rotorcraft. NOTE: This document does not address the use of radial tires due to insufficient data to support their approved use on rotorcraft, see paragraph 4.3.14 for specific impact on ground resonance.
Standard

PRECISION AIRBORNE DISTANCE MEASURING EQUIPMENT (DME/P)

1994-08-17
CURRENT
ARINC709A-1
This standard provides general and specific design guidance for the development of a DME/P, which provides slant range distance from an aircraft to a selected DME ground facility. For landing purposes, the DME/P complements the angle MLS/ILS with precise range data.
Technical Paper

The High Speed Challenge for Rotary Wing Aircraft

1991-09-01
911974
This paper reviews the problems associated with developing a vertical takeoff and landing (VTOL) aircraft that has desirable helicopter-like attributes in hover and low speed operation but is capable of efficient high subsonic cruise speed. ...It is concluded that incorporation of variable geometry, in the form of a variable diameter rotor system, has the best chance of providing the “ideal” VTOL. The variable diameter tilt-rotor adds on the order of 100 knots to the speed potential of the tilt-rotor and provides numerous other benefits as well.
Technical Paper

Ducted Fan VTOL for Working Platform

1991-09-01
911995
In this paper the development of a working platform which utilizes the ducted fan VTOL concept is tried. Two types of ducted fan VTOL research models are developed. One is driven by electric motors and the other by an engine. ...In this paper mainly the automatic flight control system for ducted fan VTOL is investigated and the control problems are studied which will arise when the VTOL is utilized as a working platform. ...Making use of advantages of ducted fan, i.e. compactness and approachability, ducted fan VTOL can be used for many purposes, such as construction and servicing of the tall structures, rescue, etc..
Journal Article

Vertical Takeoff and Landing Aircraft, Vertical Takeoff and Landing Ground Effects

2020-08-20
By strategically designing the vertical takeoff and landing (VTOL) ventral surface, reflection of the impinging fountain momentum is possible so that instead of losing 10% thrust while in ground-effect, remarkably, thrust is augmented 10% or more to a considerable height above the ground, in addition to stabilizing random pitch and roll moments caused by fountain instability.
Technical Paper

Inlet Hot Gas Ingestion (HGI) and Its Control in V/STOL Aircraft

1997-10-01
975517
A successful methodology was developed at Boeing Company to investigate hot-gas ingestion in vertical take-off and landing aircraft. It involves sub-scale model testing using specialized test facilities and test techniques. The baseline characteristics of hot-gas ingestion (HGI) and the performance of various HGI reduction techniques were qualitatively evaluated in the Boeing Hover Research Facility. Potential HGI reduction devices were then further tested at scaled pressures and temperatures in HGI facilities at NASA Lewis, Rolls Royce and British Aerospace. One of the successful HGI reduction devices was flight tested. This paper describes the application of Boeing HGI reduction methodology to three specific aircraft configurations.
Technical Paper

Hybrid Propulsion System Design of a VTOL Tailsitter UAV

2008-08-19
2008-01-2242
Tailsitter UAVs with their combined vertical take off and landing (VTOL) and fixed-wing aircraft with full flight-speed regime capability provides a distinct alternative to rotary-wing and ducted fan UAVs (OAVs). ...ITU-BYU Tailsitter concept aims to obtain the energy efficient regimes across the VTOL and the cruising flight regimes. This paper describes the hybrid propulsion system design approach to attain this.
Technical Paper

Aerodynamic Comparison of Tilt-Rotor, -Wing and -Body Concept for Multi Task MAVs

2008-08-19
2008-01-2275
Multi task Micro Air Vehicles (MAVs) have been interested in last few years. VTOL and hovering capacities are required in case of flying in very confined zone and to enter into the building. ...In this paper, the VTOL concepts including tilt-wing, tilt-body, and tilt rotor had been studied. Analytical study and wind tunnel test have been done to compare different configurations by using the same power system.
Technical Paper

HELIos, a VTOL Flying Car

1998-09-28
985535
HELIos is a single seat, three wheel, vertical take-off and landing (VTOL) flying car concept. It uses duct enclosed counter-rotating propellers. This technology eliminates the need for a tail rotor and makes the vehicle more compact.
Technical Paper

Control and Simulation of a Ducted Fan VTOL UAV

2009-11-10
2009-01-3126
This paper describes a strategy to simulate a dynamic model of a vertical takeoff and landing (VTOL) unmanned aerial vehicle (UAV) in flight transition from vertical climb to horizontal flight.
Technical Paper

A Method for Selecting Aircraft to Meet Coast Guard System Requirements

2002-04-16
2002-01-1544
The following types of vehicles were considered as competing: seaplanes, helicopters, VTOL, ekranoplans and patrol vessels. The results of the carried out comparisons have shown the capacity of work of the method and its sensitivity to all of the important mentioned above factors.
Technical Paper

Low-Cost Approaches to Proving of High-Risk Fast VTOL Designs

1992-04-01
920989
A September 1991 industry-government workshop was held under the auspices of the United States Army Research Office. This meeting, together with some subsequent discussions, examined impediments and opportunities relating to new, versatile, high-performance vertical aircraft for Army or other users. It was concluded that the technology elements that could enable free-wheeling yet economical flight proofing of risky design concepts, without jeopardizing human life, are generally available.
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