GB1439424A - Minimum drag afterbodies - Google Patents

Minimum drag afterbodies

Info

Publication number
GB1439424A
GB1439424A GB2184174A GB2184174A GB1439424A GB 1439424 A GB1439424 A GB 1439424A GB 2184174 A GB2184174 A GB 2184174A GB 2184174 A GB2184174 A GB 2184174A GB 1439424 A GB1439424 A GB 1439424A
Authority
GB
United Kingdom
Prior art keywords
afterbody
minimum
cross
afterbodies
faired
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB2184174A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Raytheon Technologies Corp
Original Assignee
United Aircraft Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by United Aircraft Corp filed Critical United Aircraft Corp
Publication of GB1439424A publication Critical patent/GB1439424A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64C—AEROPLANES; HELICOPTERS
    • B64C1/00—Fuselages; Constructional features common to fuselages, wings, stabilising surfaces or the like
    • B64C1/0009—Aerodynamic aspects
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64D—EQUIPMENT FOR FITTING IN OR TO AIRCRAFT; FLIGHT SUITS; PARACHUTES; ARRANGEMENT OR MOUNTING OF POWER PLANTS OR PROPULSION TRANSMISSIONS IN AIRCRAFT
    • B64D29/00—Power-plant nacelles, fairings, or cowlings
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T50/00—Aeronautics or air transport
    • Y02T50/10—Drag reduction

Landscapes

  • Engineering & Computer Science (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • Milling Processes (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

1439424 Faired afterbody UNITED AIRCRAFT CORP 16 May 1974 [29 June 1973] 21841/74 Headings B7G and B7W A nacelle or other faired body has an afterbody portion so profiled that its external surface is a surface of revolution about the longitudinal axis with an upstream position of maximum cross-sectional area and a downstream position of minimum cross-sectional area greater than zero, the cross-sectional areas of the body decreasing linearly between said positions of maximum and minimum areas. Such profiling ensures minimum drag for the afterbody.
GB2184174A 1973-06-29 1974-05-16 Minimum drag afterbodies Expired GB1439424A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US37523173A 1973-06-29 1973-06-29

Publications (1)

Publication Number Publication Date
GB1439424A true GB1439424A (en) 1976-06-16

Family

ID=23480057

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2184174A Expired GB1439424A (en) 1973-06-29 1974-05-16 Minimum drag afterbodies

Country Status (5)

Country Link
JP (1) JPS5037198A (en)
CA (1) CA991151A (en)
DE (1) DE2417759A1 (en)
FR (1) FR2235049B1 (en)
GB (1) GB1439424A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109977592A (en) * 2019-04-08 2019-07-05 涂常青 A kind of design method of cross-sectional area equal difference cone streamlined structure

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3219159A1 (en) * 1982-05-21 1983-11-24 Dornier Gmbh ARRANGEMENT OF PROPELLER DRIVE SYSTEMS ON AIRCRAFT

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109977592A (en) * 2019-04-08 2019-07-05 涂常青 A kind of design method of cross-sectional area equal difference cone streamlined structure

Also Published As

Publication number Publication date
JPS5037198A (en) 1975-04-07
CA991151A (en) 1976-06-15
FR2235049B1 (en) 1978-02-17
FR2235049A1 (en) 1975-01-24
DE2417759A1 (en) 1975-01-23

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee