Resumes
Resumes
David Lochtie Phones & Addresses
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2000 Walnut Ct, Rescue, CA 95672
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3273 106Th Ave SE, Bellevue, WA 98004 (425) 454-2672
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302 Brightstone Cir, Folsom, CA 95630 (916) 353-1170
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Seattle, WA
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Kiona, WA
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302 Brightstone Cir, Folsom, CA 95630
Work
Position:
Food Preparation and Serving Related Occupations
Education
Degree:
Associate degree or higher
Publications
Us Patents
Method And Apparatus For Providing A Dynamic Thrust Asymmetry Rudder Compensation Command With No Direct Thrust Measurement
View pageUS Patent:
56579497, Aug 19, 1997
Filed:
May 10, 1995
Appl. No.:
8/438625
Inventors:
Timothy D. Deck - Renton WA
David W. Lochtie - Bellevue WA
David W. Lochtie - Bellevue WA
Assignee:
The Boeing Company - Seattle WA
International Classification:
B64C 1316
US Classification:
244 76A
Abstract:
A method and apparatus for producing a dynamic thrust asymmetry airplane rudder compensation command with no direct thrust measurement is disclosed. An excess thrust estimate based on measured acceleration along the flight path of the airplane and measured vertical speed of the airplane is low pass filtered (11) to attenuate noise from the inertially derived data. The low pass filtered data is further filtered by a washout filter (15) to produce data that is sensitive only to changes in the excess thrust estimate. The input to the washout filter is frozen (13) and the output of the washout filter reduced to zero if the go-around or flare modes of the control system of the airplane are active or if the thrust asymmetry compensation feature of the primary flight computer is armed. The output of the washout filter is also zeroed when both engines are running, or multiplied by either -1 or +1 when one engine is out. Whether the multiplication is by -1 or +1 depends upon which engine is out.
System For Backdrive Of Flight Deck Controls During Autopilot Operation
View pageUS Patent:
57975647, Aug 25, 1998
Filed:
May 15, 1995
Appl. No.:
8/441681
Inventors:
Daniel H. Cartmell - Bellevue WA
David B. Borgens - Auburn WA
Henning Buus - Woodinville WA
Keith S. Duffy - Woodinville WA
Mark E. Gast - Seabrook TX
Neal V. Huynh - Bellevue WA
David W. Lochtie - Bellevue WA
David B. Borgens - Auburn WA
Henning Buus - Woodinville WA
Keith S. Duffy - Woodinville WA
Mark E. Gast - Seabrook TX
Neal V. Huynh - Bellevue WA
David W. Lochtie - Bellevue WA
Assignee:
The Boeing Company - Seattle WA
International Classification:
B64C 1316
US Classification:
244223
Abstract:
A system for backdriving the flight deck controllers of a fly-by-wire aircraft that is under autopilot control to provide a pilot with tactile and visual feedback of autopilot activity. The system, distributed between the aircraft primary flight computers and the autopilot flight computer, uses actuators mechanically coupled to each flight deck controller to position the flight deck controller to mimic manual operation of the flight control surfaces. Additionally, the system allows smooth disengagement of the autopilot and transfer of the aircraft to pilot control when the pilot takes control of any flight deck controller by moving it from a backdrive system-commanded position by a predetermined displacement for a predetermined time.
Autopilot Automatic Disconnect System For Fly-By-Wire Aircraft
View pageUS Patent:
58683593, Feb 9, 1999
Filed:
May 23, 1997
Appl. No.:
8/862781
Inventors:
Daniel H. Cartmell - Bellevue WA
David B. Borgens - Auburn WA
Henning Buus - Woodinville WA
Keith S. Duffy - Woodinville WA
Mark E. Gast - Seabrook TX
Neal V. Huynh - Bellevue WA
David W. Lochtie - Bellevue WA
David B. Borgens - Auburn WA
Henning Buus - Woodinville WA
Keith S. Duffy - Woodinville WA
Mark E. Gast - Seabrook TX
Neal V. Huynh - Bellevue WA
David W. Lochtie - Bellevue WA
Assignee:
The Boeing Company - Seattle WA
International Classification:
B64D 3104
US Classification:
244223
Abstract:
A system for backdriving the flight deck controllers of a fly-by-wire aircraft that is under autopilot control to provide a pilot with tactile and visual feedback of autopilot activity. The system, distributed between the aircraft primary flight computers and the autopilot flight computer, uses actuators mechanically coupled to each flight deck controller to position the flight deck controller to mimic manual operation of the flight control surfaces. Additionally, the system allows smooth disengagement of the autopilot and transfer of the aircraft to pilot control when the pilot takes control of any flight deck controller by moving it from a backdrive system-commanded position by a predetermined displacement for a predetermined time.