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This profile was last updated on 2/26/14  and contains information from public web pages and contributions from the ZoomInfo community.

Chief Test Pilot and Manager of F...

Local Address: Seattle, Washington, United States
SyberJet Aircraft
900 Isom Road Suite 110
San Antonio, Texas 78216
United States

Company Description: SyberJet aircraft provides the SJ30 customers with more accessibility to worldwide destinations by developing, certifying, and manufacturing aircraft tailored to...   more
Background

Employment History

12 Total References
Web References
I suited up for the flight ...
www.planeandpilotmag.com, 15 Dec 2009 [cached]
I suited up for the flight and then met with Diamond's experimental test pilot, Mark Elwess, who briefed me on the test area and general operating procedures for the test plane. After our preflight briefing, we walked out to the plane, did our preflight inspection and strapped into the D-Jet. Though it's not outfitted with a production interior, the cockpit was quite comfortable, with more than adequate forward and side visibility while sitting on the ground. After we completed our before-engine-start checklist, Elwess instructed me to turn the engine switch from "Off" to "Start"-pretty simple. At ground idle, the Williams International FJ33-5A engine was burning 84 pounds per hour, or about 12 gph at 24.7% N1. After we got the engine started, we taxied out to runway 15 at London, Ontario's airport. The weather for our flight was perfect: light winds out of the south, scattered cumulus clouds and a ground temp of 20 degrees C.
Cyrus Sigari (left) and Diamond's Mark Elwess (right) prepare to fly Diamond D-Jet S/N 003.
...
As I pulled up to the runway, I was instructed by Elwess to push the takeoff configuration button prior to calling the control tower.
jetAVIVA Jet Management Service
www.jetaviva.com, 25 Feb 2010 [cached]
I suited up for the flight and then met with Diamond's experimental test pilot, Mark Elwess, who briefed me on the test area and general operating procedures for the test plane. After our preflight briefing, we walked out to the plane, did our preflight inspection and strapped into the D-Jet. Though it's not outfitted with a production interior, the cockpit was quite comfortable, with more than adequate forward and side visibility while sitting on the ground. After we completed our before-engine-start checklist, Elwess instructed me to turn the engine switch from "Off" to "Start"-pretty simple. At ground idle, the Williams International FJ33-5A engine was burning 84 pounds per hour, or about 12 gph at 24.7% N1. After we got the engine started, we taxied out to runway 15 at London, Ontario's airport. The weather for our flight was perfect: light winds out of the south, scattered cumulus clouds and a ground temp of 20 degrees C.
Cyrus Sigari (left) and Diamond's Mark Elwess (right) prepare to fly Diamond D-Jet S/N 003.
...
As I pulled up to the runway, I was instructed by Elwess to push the takeoff configuration button prior to calling the control tower.
...
Coming out of 20,000 feet, Elwess demonstrated the jet's impressive glide performance.
...
As soon as the nosewheel touched down, Elwess retracted my flaps from landing to takeoff, and I applied full power, immediately accelerating back to our rotation speed and up for another circuit around the pattern.
Test pilot Mark Elwess said ...
www.africanpilot.co.za, 10 Aug 2012 [cached]
Test pilot Mark Elwess said the winglets have delivered measurable improvements in cruise, low-speed handling, roll authority and lateral stability. â€Å"It handles like a sports sedan,†said Elwess.
Test pilot Mark Elwess told ...
www.avweb.com, 26 July 2012 [cached]
Test pilot Mark Elwess told AVweb the winglets have delivered measurable improvements in cruise, low-speed handling, roll authority and lateral stability. "It handles like a sports sedan," said Elwess, "and now it's better. A forthcoming prototype, S/N 004, will be a conforming model that reflects the now "frozen" aerodynamic design and incorporates some changes not seen in S/N 003. Diamond hopes to take that design through certification. And the company's specific plan for certification means some exciting flight testing may still lie ahead.
According to Elwess, the winglets have improved dihedral effect and improved roll control at all speeds, especially in slow flight. He said roll-off in stalls performed at idle in the landing configuration previously could be as much as six or seven degrees. The new winglets have cut that to three. But the company is following an approved and extensive program that allows it to seek certification with a stick pusher instead of normal spin resistance testing. The idea is that a properly applied stick-pusher system prevents stall, and without a stall there is no spin. Diamond's task now is to show that the stick pusher performs properly in all configurations. That means Elwess will be flying abused stall entries, including a wide range of yaw rates, to satisfy regulators.
Action Aviation | SJ30 Business Jet News | FAA Certification Hunt
www.actionaviation.com, 6 Sept 2005 [cached]
Mark Elwess, Senior Flight Test Pilot stated today: "This marks a major milestone for the Sino Swearingen SJ30 FAA Certification project.
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