DRAKE GROUP ASSOCIATES
FAA DER'S
Robert W Honzik -- The Drake Group Incorporated Stephen Bowyer -- ThistleGreen Technologies Donald Bruss (In Memory)- -- D. Bruss & Associates R. Douglas Marwill -- Marwill & Associates David McClenahan -- McClenahan Engineering Glen Mills -- South West Aero Group Dennis Newton -- Dennis Newton Consulting Darrel Noland -- Darrel Noland Consulting Mark Ostendorf -- Starline Aircraft Co Dale Ruhmel -- Flight Dynamics Jack Sledge -- Alamo Aerospace, LLC Robert W Honzik -- The Drake Group IncorporatedRobert Honzik is the president and founder of THE DRAKE GROUP INCORPORATED which was formed in 1990 as an aviation contracting and seminar company. He is also an FAA DER for Mechanical Systems and Interiors for FAR Part 23 & 25 aircraft. Mr. Honzik has 39 years of continuous aviation employment of which the last 32 years have been in major FAA Certification efforts. His aviation experience spans from smaller Part 23 aircraft to Part 25 business jets to modifications and maintenance of airline transports. Bob is also the creator of The Drake Group’s series of aviation seminars. He is a BS technical graduate of Purdue University and has an MBA from Nevada University-Reno. Bob is a SEL pilot with a commercial instrument rating.
3230 E Flamingo Rd #365
Las Vegas NV, 89121
Voice: 702.796.0911 :: Fax: 866.422.0873 :: Cell: 702.682.0911
Stephen Bowyer -- ThistleGreen TechnologiesSteve Bowyer is a structures DER with a diverse technical background. His FAA delegation includes FAR 23 & 25 airplanes, with special designation for repairs & alterations. His experience includes OEM and airline structural repair design, military modification design, corporate jet structural mods, avionics installations, test rig design and corporate interiors installations. Steve has a Bachelor of Engineering degree and is also a SMELS pilot. This wide range of skills, coupled with a powerful network of associates, can provide your firm with the experience and expertise it needs for its projects.
Steve’s company, ThistleGreen Technologies, is conveniently located in the Southwestern US. Specific capabilities include:
·Approval and design of structural repairs.
·Approval and design of structural modifications.
·Finite element analysis of structures using Nastran software.
·Designing and performing structural tests.
·On site damage assessment and liaison support for aircraft repairs.
·Development of process specifications, drawing standards and engineering document procedures.
·Representing customer’s interests at meetings with regulatory authorities, OEMs etc.
Please direct all business inquiries directly to Mr. Bowyer at the following addresses.
10241 N Hardage Lane
Tucson AZ, 85737
Email: AirBowyer@aol.com
Voice: 520-744-7013 :: Fax: 520-572-8289 :: Cell: 520-490-0405
Donald Bruss (In Memory)- -- D. Bruss & AssociatesFor those aviation friends who may not have known, Don Bruss past away in December 2000 from complications during an operation. Don Bruss had a BS degree in Mechanical Engineering from the University of Illinois and has 48 years experience in aircraft engineering at 5 major airframe manufacturers and his consultant engineering firm. His activities, that were predominantly in landing gear, include over 70 aircraft landing gear, wheels, brakes, tires, and or skid control projects, covered by FAR Part 23, Part 25, US Air Force or Navy requirements. He had been a member of the SAE A-5 Aerospace Landing Gear Systems Committee since 1956 (chairman 1966-1977) and had been an FAA Consultant DER in Structures since 1964 for landing gears, wheels, brakes, tires and skid control. Don and his consultant firm performed landing gear configuraiton studies, preliminary designs, detail production designs, analytical drop test reports, landing and ground handling loads reports, proposal and procurement specs, drop test proposals, drop test reports, and aircraft tire flotation analysis. Don's wife, Mary, resides at the following address. We will miss you, Don.
14216 E. Boston
Wichita KS, 67230
R. Douglas Marwill -- Marwill & AssociatesDoug Marwill is a DER for Propulsion Systems and Engines with over 30 years of experience in the aviation industry. Prior to opening his business 15 years ago he was employed by Lockheed Missiles and Space, Beech Aircraft and Fairchild. He is a licensed Professional Engineer in the State of Texas and a graduate of Wichita State University with a BS in Mechanical Engineering. Besides his broad propulsion system capabilities he is a self established expert in crash resistant fuel system designs meeting the new FAA standards and is well versed in propulsion / fuel system litigation in support of airframe manufactures. Please direct all business inquiries directly to Mr. Marwill at the following address.
14004 Mint Trail
San Antonio TX, 78232
Email: marwill.2617@sbcglobal.net
Voice: 210-496-6409 :: Fax: 210-490-6422 :: Cell: 210-410-6407
David McClenahan -- McClenahan EngineeringDave McClenahan is a Structures DER for FAR Part 23/25/27/29 as well as CAR 3/4/6&7. Mr. McClenahan is also a Professional Engineer in the State of Nevada for Mechanical Engineering. Dave's company can perform aviation static analyses, damage tolerance analyses, structural repair engineering, prepare material and process specifications, perform finite element analyses and testing as well as perform structural CAD design. Dave is well versed in both metallic and composite structures. He has over 25 years experience and holds a BS in Mechanical Engineering from Wichita State University. Please direct all business inquiries directly to Mr. McClenahan at the following address.
470 Alamosa
Sparks NV, 89436
Email: dmcclena1@direcpc.com
Voice: 775-425-5307 :: Fax: 775-425-5308 :: Cell: 775-772-0363
Glen Mills -- South West Aero GroupGlen Mills is a Flight Analyst DER for FAR Part 23/25 aircraft and is authorized to witness and approve data for FAR Part 36. Mr. Mills has 25 Years of experience in performance and flying qualities, avionics, air data, noise and icing flight test, and 15 years certification program management. Certification management includes airline/executive interior and avionics reconfigurations, and special mission modifications supporting aerial reconnaissance for US and foreign military organizations. South West Aero Group associates have OEM program management experience in heavy structural modification programs and airline support. South West Aero Group supports PMA certification projects and conducts quality audits for companies working to obtain PMA authorization. Mr. Mills received his Bachelor of Science degree in Aeronautical Engineering from Cal Poly, San Luis Obispo. Glen is a commercial instrument pilot and is also a flight instructor. For information regarding services of Glen Mills please contact his office directly at the following address.
42348 La Gabriella Drive
Lancaster CA, 93536
Email: GlenMills@aol.com
Voice: 661-943-0920 :: Fax: 661-943 1381
Dennis Newton -- Dennis Newton ConsultingDennis Newton provides 34 years of industry and FAA experience in flight
test related matters for clients involved in development and certification
projects for light twins, turbo props and jet transports. Dennis is Also an FAA DER Flight Test Pilot with authorization for FAR 25, FAR 23 and CAR 3 airplanes. He holds Airline Transport Pilot type ratings in seven jet and four turboprop airplanes, and is instructor-rated in single- and multi-engine airplanes and gliders. He has been intimately involved in the design, development and certification of both general aviation and transport airplanes since 1969. He has done airline crew training and flown as a training captain in line operations with several foreign airlines. Although his particular specialties are icing development and certification and autoflight and avionics integration, he also has engineering and flight test experience in aerodynamics, performance, and stability and control. Dennis Newton holds a B.S. in Engineering and an M.S. in Meteorology from Penn State, and is an Associate Fellow of the American Institute of Aeronautics and Astronautics, A Centennial Fellow of the Penn State College of Earth and Mineral Sciences, and a member of the Society of Experimental Test Pilots. He is the author of numerous papers and aviation magazine articles on icing and other weather topics as well as the book, “Severe Weather Flying”, now in its third edition.
Please direct all business enquiries directly to Mr. Newton at the following address the following address.
PO Box 3793
Kent WA, 98089
Email: iceavia8r@msn.com
Voice: 253-839-5781
Darrel Noland -- Darrel Noland ConsultingDarrel Noland is a DER for Mechanical Systems and Equipment for FAR Part 25 aircraft. He has been involved in the design and installation of water, oxygen, air distribution, hydraulic, and interior completion items. He has been in the industry for over 30 years and has been involved in Part 23 and 25 airplanes and Part 29 helicopters. Mr. Noland is a graduate of Purdue University with a BS degree in management along with an aviation technical degree. He has been involved in managerial and program management positions for several years He has also been an accident investigator for Beech Aircraft and has attended accident investigation school at USC. He has been involved in aircraft crashworthiness research and has attended a crash investigation school from the human tolerance aspects at the International Center for Safety education (ICSE) in Phoenix AZ. Darrel has a SEL pilot certificate. Please direct all inquiries directly to Mr. Noland at the following address.
3022 E Alpine Dr
Bellingham WA, 98226
Email: darrel.noland@verizon.net
Voice: 360-527-3392 :: Cell: 360-961-2664
Mark Ostendorf -- Starline Aircraft CoMr. Ostendorf has 33 years experience in aircraft design and certification. This includes work with Lockheed [L-1011], Ted Smith Aerostar [the Aerostar series], Tracor Aviation, Sundstrand [TransCom], Lucas Aerospace and innumerable contracts with various firms involving electrical, electronic and avionics systems design and/or certification. Mr. Ostendorf has been an FAA DER in Systems & Equipment, Electrical, Part 23/25 since 1975 and has been involved in various types of certifications including TCs, STCs and PMAs. Mark is a pilot with multiengine instrument ratings and is a sport airplane enthusiast as the owner of a Long EZ. Please send all business enquiries directly to Mr. Ostendorf at the following address.
P.O. Box 6765
Santa Barbara CA, 93160
Email: MOSTEND@AOL.COM
Voice: 805-683-0799 :: Fax: 805-683-8912
Dale Ruhmel -- Flight DynamicsMr. Ruhmel has over 40 years of experience in aviation involving development, design, testing modifications, and operation of aircraft. This also includes engineering experience in aerodynamics, performance, stability and control, air loads, structures, dynamics, systems design, weights, ground and flight testing. He has been intimately involved in the design, development and certification of over 25 transport and general aviation aircraft. Dale is an FAA DER of Structures, Flight Analyst, and Flight Test Pilot. In addition to his technical skills, Mr. Ruhmel holds an Airline Transport Pilot's rating with experience in flight testing, corporate flying, air taxi, flight instruction and overall evaluation of aircraft. Dale holds an MS in Aeronautical Engineering from Princeton University. Please direct all business inquiries for Dale at the following contact addresses.
17140 Talbot Rd
Edmonds WA, 98026
Email: ruhmel@attglobal.net
Voice: 425-640-5874 :: Cell: 805-218-6660
Jack Sledge -- Alamo Aerospace, LLCJack Sledge is a DER for propulsion systems (reciprocating engines); flight analyst and acoustics. He has over 15 years experience in the installation of reciprocating engines in CAR 3 and FAR 23 aircraft as well as program management of aircraft certification projects. Jack’s company can provide compliance checklists, drawing review and approval, test plans, test witnessing and final reports. He routinely conducts FAR 36 acoustical tests on propeller-driven aircraft and also conducts analyses to show “no acoustical change”. Jack is experienced in coordinating projects that involve numerous entities and stays actively involved with physical modifications on the certification test aircraft. Prior to starting his own company in 2000, he was employed by The New Piper Aircraft, Inc. and Ram Aircraft, Inc. He holds a BS in Aerospace Engineering from Mississippi State University and is also a private pilot. Mr. Sledge can be contacted directly at the numbers below.
1687 CR 1790
Sunset TX, 76270
Email: jack@alamoaerospace.com
:: Cell: 940-399-8060
