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ASTM F2352-05

(Specification)

Standard Specification for Design and Performance of Light Sport Gyroplane Aircraft

Standard Specification for Design and Performance of Light Sport Gyroplane Aircraft

SCOPE
1.1 This specification covers the manufacture of gyroplanes. This specification includes design and performance requirements for light sport gyroplane aircraft.
1.2 This specification applies to light gyroplane aircraft seeking civil aviation authority approval in the form of flight certificates, flight permits, or other like documentation.
1.3 A gyroplane for the purposes of this specification is defined as a rotorcraft to be used for day VFR only, with rotor blades that are not engine-driven in flight and are supported in flight by the reaction of the air on a single rotor that rotates freely on a substantially vertical axis when the aircraft is in horizontal flight.
1.4 These requirements apply to light gyroplanes of orthodox design. Aircraft having the following basic features will be so regarded:
1.4.1 Rotors of either fixed collective pitch or collective pitch control that are not adjustable in flight,
1.4.2 Single engine with fixed or ground adjustable pitch propeller,
1.4.3 No more than two occupant seats, and
1.4.4 A maximum gross weight (MGW) of 725 kg (1600 lb) or less.
1.5 Where it can be shown that a particular feature is similar in all significant respects to a feature that has historically demonstrated compliance with this specification and can be considered a separate entity in terms of its operation, that feature shall be deemed to be applicable and in compliance with this specification.
1.6 Where these requirements are inappropriate to particular design and construction features, it will be necessary to submit an appropriate amendment of this specification to ASTM Committee F37 on Light Sport Aircraft for consideration and approval.
1.7 The values in SI units are to be regarded as the standard. The values in parentheses are for information only.
1.8 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.

General Information

Status
Historical
Publication Date
31-Jan-2005
ICS
49.020 - Aircraft and space vehicles in general
Technical Committee
F37 - Light Sport Aircraft
Drafting Committee
F37.50 - Gyroplane
Current Stage
Ref Project

Relations

Replaces
ASTM F2352-04a - Standard Specification for Design and Performance of Light Sport Gyroplane Aircraft
Effective Date
01-Feb-2005
Replaced By
ASTM F2352-05(2008) - Standard Specification for Design and Performance of Light Sport Gyroplane Aircraft
Effective Date
15-May-2008
Referred By
ASTM F2507-15 - Standard Specification for Recreational Airpark Design
Effective Date
01-Feb-2005
Referred By
ASTM F3060-20 - Standard Terminology for Aircraft
Effective Date
01-Feb-2005
Referred By
ASTM F2483-18e1 - Standard Practice for Maintenance and the Development of Maintenance Manuals for Light Sport Aircraft
Effective Date
01-Feb-2005

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ASTM F2352-05 - Standard Specification for Design and Performance of Light Sport Gyroplane AircraftASTM F2352-05 - Standard Specification for Design and Performance of Light Sport Gyroplane Aircraft
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Technical specification
ASTM F2352-05 - Standard Specification for Design and Performance of Light Sport Gyroplane Aircraft
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Standards Content (Sample)

NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Contact ASTM International (www.astm.org) for the latest information
Designation: F 2352 – 05
Standard Specification for
1
Design and Performance of Light Sport Gyroplane Aircraft
This standard is issued under the fixed designation F 2352; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (e) indicates an editorial change since the last revision or reapproval.
1. Scope priate safety and health practices and determine the applica-
bility of regulatory limitations prior to use.
1.1 Thisspecificationcoversthemanufactureofgyroplanes.
1.9 Table of Contents:
This specification includes design and performance require-
Section
ments for light sport gyroplane aircraft.
Scope 1
1.2 This specification applies to light gyroplane aircraft
Table of Contents 1.9
seeking civil aviation authority approval in the form of flight Referenced Documents 2
Terminology 3
certificates, flight permits, or other like documentation.
Definitions 3.1
1.3 A gyroplane for the purposes of this specification is
Acronyms 3.2
defined as a rotorcraft to be used for day VFR only, with rotor
Flight 4
General 4.1
blades that are not engine-driven in flight and are supported in
Performance 4.2
flight by the reaction of the air on a single rotor that rotates
Controllability and Maneuverability 4.3
freely on a substantially vertical axis when the aircraft is in
Longitudinal Lateral and Directional Control 4.4
Stability 4.5
horizontal flight.
Ground-Handling Characteristics 4.6
1.4 These requirements apply to light gyroplanes of ortho-
Miscellaneous Flight Requirements 4.7
dox design.Aircraft having the following basic features will be Structure 5
General 5.1
so regarded:
Flight Loads 5.2
1.4.1 Rotors of either fixed collective pitch or collective
Engine Torque 5.3
pitch control that are not adjustable in flight, Control System Loads 5.4
Stabilizing and Control Surfaces 5.5
1.4.2 Single engine with fixed or ground adjustable pitch
Ground Loads 5.6
propeller,
Main Component Requirements 5.7
1.4.3 No more than two occupant seats, and Emergency Landing Conditions 5.8
Other Loads 5.9
1.4.4 Amaximum gross weight (MGW) of 725 kg (1600 lb)
Design and Construction 6
or less.
General 6.1
1.5 Whereitcanbeshownthataparticularfeatureissimilar Materials 6.2
Fabrication Methods 6.3
in all significant respects to a feature that has historically
Locking of Connections 6.4
demonstrated compliance with this specification and can be
Protection of Structure 6.5
Inspection 6.6
considered a separate entity in terms of its operation, that
Provisions for Rigging and Derigging 6.7
feature shall be deemed to be applicable and in compliance
Material Strength Properties and Design Values 6.8
with this specification.
Fatigue Strength 6.9
Special Factors of Safety 6.10
1.6 Wheretheserequirementsareinappropriatetoparticular
Bearing Factors 6.10.2
design and construction features, it will be necessary to submit
Fitting Factors 6.10.3
an appropriate amendment of this specification to ASTM
Cable Factor 6.10.4
Committee F37 on Light Sport Aircraft for consideration and Rotor Components Factor 6.10.5
Flutter Prevention and Structural Stiffness 6.11
approval.
Control Surfaces and Rotors 6.12
1.7 The values in SI units are to be regarded as the standard.
Control Surface Installations (Other Than Rotor Blades) 6.13
Control Surface Hinges (Other Than Rotor Blades) 6.14
The values in parentheses are for information only.
Rotor Mass Balance 6.15
1.8 This standard does not purport to address all of the
Rotor Blade Clearance 6.16
safety concerns, if any, associated with its use. It is the
Rotor Head Bearings 6.17
Control Systems 6.18
responsibility of the user of this standard to establish appro-
Cockpit Design 6.19
Powerplant 7
General 7.1
1
This specification is under the jurisdiction of ASTM Committee F37 on Light
Engine 7.2
Sport Aircraft and is the direct responsibility of Subcommittee F37.50 on Gy-
Engine and Propeller Compatibility 7.3
roplane.
Current edition approved Feb. 1, 2005. Published May 2005. Originally
approved in 2004. Last previous edition approved in 2004 as F 2352 – 04a.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
1

---------------------- Page: 1 ----------------------
F2352–05
3.2 Acronyms:
Section
Rotor Spin-Up and Brake Systems 7.4
3.2.1 AOI—Aircraft Operating Instructions
Powerplant and Rotor System Compatibility 7.5
3.2.2 ASTM—American Society for Testing and Materials
Propeller Clearance 7.6
Fuel System 7.7
3.2.3 CAS—calibrated airspeed
Oil System 7.8
3.2.4 CG—center of gravity
Cooling 7.9
Induction System 7.10
3.2.5 CN—normal force coefficient
Exhaust System 7.11
3.2.6 IAS—indicated airspeed
Powerplant Controls and Accessories 7.12
Cowling and
...

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