ASTM F330-10
(Test Method)Standard Test Method for Bird Impact Testing of Aerospace Transparent Enclosures
Standard Test Method for Bird Impact Testing of Aerospace Transparent Enclosures
SIGNIFICANCE AND USE
This test method may be used for: bird impact testing of aircraft crew compartment transparencies and supporting structure to verify the design; compilation of test data for use in verification of future transparency and supporting structure design and analytical methods; and comparative evaluation of materials.
SCOPE
1.1 This test method covers conducting bird impact tests under a standard set of conditions by firing a packaged bird at a stationary transparency mounted in a support structure.
1.2 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.
1.3 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. For specific hazard statements, see Section 8.
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Designation: F330 − 10
StandardTest Method for
1
Bird Impact Testing of Aerospace Transparent Enclosures
ThisstandardisissuedunderthefixeddesignationF330;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginal
adoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscript
epsilon (´) indicates an editorial change since the last revision or reapproval.
This standard has been approved for use by agencies of the U.S. Department of Defense.
1. Scope 3.2 The specific parameters described by this test method
are:
1.1 This test method covers conducting bird impact tests
3.2.1 Bird weight and condition,
under a standard set of conditions by firing a packaged bird at
a stationary transparency mounted in a support structure.
3.2.2 Bird velocity, and
3.2.3 Instrumentation.
1.2 The values stated in inch-pound units are to be regarded
as standard. The values given in parentheses are mathematical
4. Significance and Use
conversions to SI units that are provided for information only
and are not considered standard.
4.1 Thistestmethodmaybeusedfor:birdimpacttestingof
1.3 This standard does not purport to address all of the
aircraftcrewcompartmenttransparenciesandsupportingstruc-
safety concerns, if any, associated with its use. It is the
ture to verify the design; compilation of test data for use in
responsibility of the user of this standard to establish appro-
verification of future transparency and supporting structure
priate safety and health practices and determine the applica-
design and analytical methods; and comparative evaluation of
bility of regulatory limitations prior to use. For specific hazard
materials.
statements, see Section 8.
5. Apparatus
2. Terminology
5.1 Gun, compressed gas, conforming in principle to Fig. 1,
2.1 Definitions:
comprising:
2.1.1 bird—thecarcassthatisusedtoimpactthetestarticle.
5.1.1 Pressure Tank, of capacity and working pressure as
2.1.2 bird package—the bird and container that encases the
discussed in Note 1.
bird to prevent disintegration enroute to target.
2.1.3 gun—the device that propels the bird toward the
NOTE 1—Agun capable of propelling a 4-lb (1.81-kg) bird in excess of
target. 650 knots (334 m/s) has a barrel 60 ft (18.3 m) long, bore of 6 in. (153
3 3
mm), and a pressure tank volume of 30 ft (0.849 m ) with an allowable
2.1.4 sabot—the container that is used to carry the bird
6
working pressure of 250 psi (1.725×10 Pa).
package down the gun barrel.
5.1.2 Release Mechanism, comprised of a firing solenoid,
2.1.5 stripper—the device that stops the sabot at the end of
diaphragm, and a cutter. Upon initiation of the firing sequence,
the gun barrel so that only the bird package impacts the test
the release mechanism allows the compressed gas stored in the
article.
pressure tank to flow rapidly into the gun barrel and propel the
2.1.6 test article—the transparency and supporting struc-
projectile.
ture.
NOTE 2—The most common designs normally use either one or two
3. Summary of Test Method diaphragms in the release mechanism. In the single diaphragm design, the
diaphragm is mechanically ruptured upon firing (see Fig. 1). In the dual
3.1 This test method employs a smooth-bore bird gun that
diaphragm system, pressurized gas between the two pressurized gas
fires a chicken carcass so that it impacts a stationary aerospace
diaphragms is bled to initiate firing by allowing the stored gas to burst
transparency mounted in a supporting structure.
each diaphragm in rapid succession.
5.1.3 Barrel (Launch Tube), a smooth bore tube that guides
1
thepackagedbird(andsabotifused)duringitsaccelerationby
This test method is under the jurisdiction of ASTM Committee F07 on
Aerospace andAircraft and is the direct responsibility of Subcommittee F07.08 on
the expanding air from the pressure tank. The bore and length
Transparent Enclosures and Materials.
of the barrel is chosen both to accommodate the largest of the
Current edition approved May 1, 2010. Published June 2010. Originally
projectiles to be used and for the overall performance require-
approved in 1979. Last previous edition approved in 2004 as F330–89 (2004).
DOI: 10.1520/F0330-10. ments of the gun.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1
---------------------- Page: 1 ----------------------
F330 − 10
FIG. 1 Representative Air Gun
5.1.4 Sabot Stripper may be mounted at the end of the nitrogen, may be mixed with the air to cool the air below
launcher tube. The purpose of the sabot stripper is to arrest or ambient temperatures. Hot air, heat lamps, or energized elec-
deflectthesabot,allowingonlythepackagedbirdtoimpactthe tricalconductivecoatingswithinthetestarticlemaybeusedto
test article. raise interior or exterior temperatures. Antiicing or defog
...
This document is not anASTM standard and is intended only to provide the user of anASTM standard an indication of what changes have been made to the previous version. Because
it may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current version
of the standard as published by ASTM is to be considered the official document.
Designation:F330–89(Reapproved2004) Designation:F330–10
Standard Test Method for
1
Bird Impact Testing of Aerospace Transparent Enclosures
ThisstandardisissuedunderthefixeddesignationF330;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginal
adoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscript
epsilon (´) indicates an editorial change since the last revision or reapproval.
This standard has been approved for use by agencies of the Department of Defense.
1. Scope
1.1 This test method covers conducting bird impact tests under a standard set of conditions by firing a packaged bird at a
stationary transparency mounted in a support structure.
1.2The values stated in inch-pound units are to be regarded as the standard.The values given in parentheses are for information
only.
1.2 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical
conversions to SI units that are provided for information only and are not considered standard.
1.3 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. For specific hazard statements, see Section 8.
2. Terminology
2.1 Definitions:
2.1.1 bird—the carcass that is used to impact the test article.
2.1.2 bird package—the bird and container that encases the bird to prevent disintegration enroute to target.
2.1.3 gun—the device that propels the bird toward the target.
2.1.4 sabot—the container that is used to adaptcarry the bird package todown the gun barrel.
2.1.5 stripper—the device that stops the sabot at the end of the gun barrel so that only the bird and package exits from impacts
the barrel. test article.
2.1.6 test article—the transparency and supporting structure.
3. Summary of Test Method
3.1 This test method employs a smooth-bore bird gun that fires a chicken carcass so that it impacts a stationary aerospace
transparency mounted in a supporting structure.
3.2 The specific parameters described by this test method are:
3.2.1 Bird weight and condition,
3.2.2 Bird velocity, and
3.2.3 Instrumentation.
4. Significance and Use
4.1 This test method may be used for: bird impact testing of aircraft crew compartment transparencies and supporting structure
to verify the design; compilation of test data for use in verification of future transparency and supporting structure design and
analytical methods; and comparative evaluation of materials.
5. Apparatus
5.1 Gun, compressed gas, conforming in principle to Fig. 1, comprising:
5.1.1 Pressure Tank, of capacity and working pressure as discussed in Note 1.
NOTE 1—Agun capable of propelling a 4-lb (1.81-kg) bird in excess of 650 knots (334 m/s) has a barrel 60 ft (18.3 m) long, bore of 6 in. (153 mm),
3 3 6
and a pressure tank volume of 30 ft (0.849 m ) with an allowable working pressure of 250 psi (1.725 310 Pa).
5.1.2 Release Mechanism, comprised of a firing solenoid, diaphragm, and a cutter. Upon initiation of the firing sequence, the
1
This test method is under the jurisdiction ofASTM Committee F07 onAerospace andAircraft and is the direct responsibility of Subcommittee F07.08 on Transparent
Enclosures and Materials.
Current edition approved Oct.May 1, 2004.2010. Published October 2004.June 2010. Originally approved in 1979. Last previous edition approved in 19992004 as
F330–89 (1999).(2004). DOI: 10.1520/F0330-89R04.10.1520/F0330-10.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
1
---------------------- Page: 1 ----------------------
F330–10
FIG. 1 Representative Air Gun
release mechanism allows the compressed gas stored in the pressure tank to flow rapidly into the gun barrel and propel the
projectile.
NOTE 2—The most common designs normally use either one or two diaphragms in the release mechanism. In the single diaphragm design, the
diaphragm is mechanically ruptured upon firing (see Fig. 1). In the dual diaphragm system, pressurized gas between the two pressurized gas diaphragms
is bled to initiate firing by allowing the stored gas to burst each diaphragm in rapid succession.
5.1.3 Barrel (Launch Tube), a smooth bore tube that guides the packaged bird (and sabot if used) during its acceleration by the
expandingairfromthepressuretank.Theboreandlengthofthebarrelischosenbothtoacco
...
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