Escape strategies for turboprop aircraft in microburst windshear.

264 Pages·3.1 MB·en_US

by  Bobbitt, Richard B.;Howard, Richard M.

NAVAL POSTGRADUATE SCHOOL
Monterey California
,
THESIS
ESCAPESTRATEGIESFORTURBOPROPAIRCRAFT
INAMICROBURSTWINDSHEAR
by
Richard B. Bobbitt
March 1991
ThesisAdvisor: RichardM. Howard
Approvedforpublicrelease; distributionisunlimited.
fT?56893

Unclassified
Security Clmificnion of this page
REPORTDOCUMENTATIONPAGE
u
Report Saadtt cimificxioo Unclassified lb Rettrictive Markinga
2a Security CJMtjfkatjon Authority 3 Distribution Availability of Report
2b DeclaatifkaDWDowiigradmg Schedule Approvedfcrpublicrelease;distributionisunlimited.
4 PerformingOrgaaizatioo Report Number^ 5 Monitoring Organization Report Numberft)
6ft Nam* of Ptrfonniiig Organization 6b Office Symbol 7ft Name of Monitoring Organization
NavalPostgraduateSchool /IfAjHrtaU>U) l\
6c Address fan; state, andZIPcode) 7b Address fe*K /ft*, aodZIPcode)
Monterey. CA93943-5000
8ft Nam of ftidtia/flyflatflilag CtgaaizBuan 8b Office Symbol * 9 Procurement Instrument Identificatiofl Number
&. ABM*
}
ZP
8c Address (city, state, and code) 10 Source of Funding Numbers
PrvynEhnupLHucdbw frojBctfto TartHo WorkUntAccanoDNo
ll Ttfle /fiefe* Security OaariScarioa) ESCAPESTRATEGIESFORTURBOPROPAIRCRAFTINMICROBURST
WINDSHEAR
12 Peraonel A.««W.l RirharrlB. Bobbitt
13ft Type of Report 13b Time Covered 14 Date of Report (year, month.dav) IS Page Count
Master'sThesis Prom To March1991 ML
16 Supplementary Notation Theviewsexpressedinthisthesisarethoseoftheauthoranddonotreflecttheofficialpolicyor
positionoftheDepartmentofDefenseortheU.S. Governmprn;
17 Coealt Codes 18 SubjectTerms (ooottoue onnvene itnecessaryaodidentifybyblock omobsr)
Field Group Subgroup Microburst,windshear,arcraftperformance,turboprop.
19 Abstract (coadaue oanvem ffoecessaryaodideotifybybhctouatber)
A
quantitativeanalysiswascarriedoutontheperformanceofturbopropaircraftwithinamicroburst windshear. The
objectiveoftheanalysiswastoprovidespecificfHghtprocechjresforop^alnavigationtJiroughthewindshear^ The
microburstwindshearmodelusedintheanalysisembodiedtheseverecharacteristicsofthemicroburstencounteredbyDelta
Flight191 duringanapproachtolandingatDallas/Ft. Worth, 2August, 1985. Differentescapestrategiesweretestedusing
theflightperformancecharacteristicsoftheU.S.Navy'sP-3 "Orion"andT-44"Pegasus"aircraft. Thethreeflightphases
investigatedwereapproachtolanding takeoff,andthelowaltitudeASWmission. Resultsfromtheanalysiswerecoupled
,
withthepilot'sview-pointfromwhichconclusionsweredrawn. Theresultsoftheanalysissupportaconstant-pitch-angle
escapeprocedure. Thesameproceduralstepscanbeusedforbothaircraftinanyconfigurationorsituationwiththedifference
beingthedegreeofpitchtoemploy. Theconclusionsareinaformatforintegratingspecificmicroburstescapeprocedures
withintheNATOPSprogramsfortheP-3andT-44aircraft.
20 Diatribution/Avftuftbflity of Abetr-act 21 Abetract Security Classification
IB -I D D
...... DTK Unclassified
22ft Name of Reapoorible individual 22b Telephone (lactudeAreacode) 22c Office Symbol
ProfessorRichardM. Howard (4081646-2870 AA/HO
DDFORM 1473, 84 MAR 83 APR edition maybe ueed until exhausted eecurity classification of mis pftge
AD (Khar edition* an obsolete Unclassified
Approved forpublic release;distributionisunlimited.
EscapeStrategiesfor TurbopropAircraftinMicroburstWindshear
by
Richard B. Bobbitt
LieutenantCommander, UnitedStatesNavy
B.S. UniversityofSouth Florida, 1978
,
Submittedin partialfulfillmentoftherequirementsforthe
degree of
MASTEROF SCIENCE INAERONAUTICAL ENGINEERING
from the
NAVALPOSTGRADUATESCHOOL
March 1991