Our Team2020-10-05T18:02:59+00:00

Meet Our Team

Experienced pilots, ready for any challenge. Meet some of them.

Mitch Ange

Mitch is a former electrical engineer and owner of Professional Airline Systems and Arizona Type Ratings. By studying the needs of our students, he has developed one of the best animated and interactive training programs in the industry.


For the last three decades, Mitch has been busy doing flight instructions and teaching ground school on a full time basis for clients seeking CE-500, CE-510 and CE-525 Type ratings. He holds multiple Type ratings: CE-500, CE-510, CE-525, DC-3, HS-125, LR-Jet

Nic Cherches

Nic took his first flight lesson at the age of 14 and soloed on his 16th birthday. At the age of 18, he became a flight instructor and worked as a CFI while attending Wichita State University. Upon graduating, he worked flying freight in Milwaukee and later moved to the Central Coast of California where he took his first jet job flying a CJ3.

Pilot / Instructor

Nic is now working as chief pilot for a Part 91 Company in Scottsdale Arizona. Arizona Type Ratings is proud to have had Nic on our team for the past 10 years. He holds numerous Type Ratings, including the LR-JET, CE500, CE525S, CE560XL and DA-20.

Jim Taylor

Jim began his professional flying career in 1977 on a Citation I/SP. With more than 24,000 hours of incident/accident free flying in all types of operations and environments, he has held many positions including line pilot, check airman, director of training, chief pilot, director of operations, designated pilot examiner, and accident prevention counselor.


Of his total time as a pilot, 14,800 hours is as a single pilot, flying Metro/Merlin, Turbo Commanders, Cheyenne, Conquest, King Airs and the Citation 500/525 line. Jim also has an extensive background in pilot training and evaluation, and is currently very involved in developing and instructing “hands on” safety and emergency training.

Peter Gajic

Not much of a pilot, but Peter is the guy behind the curtain when it comes to transferring Mitch’s airplane system expertise into animations in particular. Animations that you will see on Arizona Type Ratings LMS (Learning Management System) are his deed.

IT Person

Peter has over 30 years of experience working with variety of the computer systems. (Some systems are so ancient that it would be crazy even to list them here). Anyhow, if you get stuck with our online tools, chances are that you will be in contact with Peter 🙂

Geoffrey VeneKlasen

Geoffrey was selected by the Albuquerque FSDO to be a Pilot Examiner in 2006. “I have had the privilege of giving the better part of 900 flight tests.


I cross paths with remarkable men and women in aviation and I am always mindful of how lucky I am to be a part of this.” Geoffrey holds authorization for the EA500 Eclipse, the CE500 Citation series, and the CE525 Citation Jet series aircraft. He lives in Santa Fe, New Mexico.

Vesna Ajic

Vesna was introduced to aviation after relocating to the USA as a criminal lawyer from Yugoslavia. Her enthusiasm and commitment for flying lead to earning her pilot certificates and Type Ratings in Cessna Citation, CitationJet and Mustang.

Pilot/ Instructor

Vesna has been working as a contract pilot and ground instructor for a number of years. When not flying or teaching, she helps with marketing and customer service of Arizona Type Ratings.  "At ATR we are constantly employing innovative solutions to elevate our clients training experience from ordinary to exceptional''

Bill Unternaehrer

Bill was a Honeywell electrical engineer for 30 years. Closely involved in projects such as the world’s first digital autopilot, the first ring laser gyro inertial reference system and the first GPS approach. He has a BS in electrical engineering from the Missouri School of Mines and a MBA from Utah State University.


More than 12,000 hours of pilot time and 7500 of instruction given in various aircraft, holds type ratings in the Cessna 500 and 525 as well as the Hawker 125, Falcon 900 and King Air 300. Bill was the Honeywell avionics instructor for the business aviation aircraft and also provided instruction to the end user operators around the world of FMS specific operations.

Dan Brattain

Dan, Cal-Ore CEO & Arizona Type Ratings Instructor became a pilot while still in high school. He is an ATP pilot rated for a variety of business jets, a licensed helicopter pilot, certified Flight instructor, FAA designated PART 135 Check Airman, FAA Safety Team Representative and a certified EMT.

Pilot / Instructor

"I get to work in the industry that is my passion" - Dan shared, adding "and I fly in my free time too." He is widely known for his community involvement, which includes serving on a numerous of boards, both industry and philanthropic.

Joe Sottile

Joe began flying at the age of 13, soloed at the age of 16 and was a Military Pilot at 19 years old. He has more than 35,000 hours of flying and is type rated in 15 different aircraft. Joe is retired as a Captain and Check Airman from a major airline. He was first designated as a Pilot Examiner at the age of 24 and estimates he has given more than 3000 pilot certification flight tests over the years. His authority as an Examiner is Private through ATP and CFI in both Helicopters and Airplanes with CE-500, series CE-525 series and CE-510 authorization.

Instructor/ Examiner

He is the recipient of both the "Charles Taylor Mechanic" and the "Wright Brothers Pilot" 50 year awards. Working and flying aircraft is all I have ever done and my passion for aviation has made me a complete failure at retirement. Aviation gives me the opportunity to meet many wonderful people and share some great experiences. I love training and evaluating pilots and when I am not doing that I am generally giving rides in my Stearman at the Airpark I have lived at for more than 30 years.