Start here
A few places to begin, from the aircraft’s story to the people who fly it.
Meet the aircraft
Viper Aircraft's homebuilt ViperJet has tandem seats under a canopy, a composite low-wing airframe and retractable gear. Side intakes supply the engine. Aerobask's ViperJet EX has its own simulator equipment and features documented by the developer.
Aircraft background
Wikipedia contributors · Read more ↗A prototype visit turns into a surprisingly comfortable ride
Rozendaal arrived expecting a utilitarian prototype and brought clothing to match. Instead, he found a finished interior, air conditioning and a demonstration pilot dressed for an ordinary day. The rear seat was comfortable, although tight around his elbows, and the aircraft made a much more polished impression than he had anticipated.
KITPLANES · January 2009. MkII demonstration at Pasco with Greg Bennett. Rozendaal flew airwork from the rear seat; Bennett handled takeoff and landing.
KITPLANES · Read more ↗The EX has a configurable instrument panel
Aerobask lists an Avidyne EXP5000 with optional synthetic vision, a head-up display and a DFC90 autopilot. Screen instruments and the autopilot offer configurable popups and popouts.
ViperJet · Aerobask · X-Plane 12
Aerobask · Read more ↗Into the cockpit
YouTube X-Plane. Org Videos and Reviews · 4 min ·
ViperJet eX XP12 by Aerobask
A showcase of Aerobask's ViperJet eX for X-Plane 12.
Simulator · Aerobask ViperJet eX · X-Plane 12
Watch on YouTube ↗
YouTube Q8Pilot · 12 min ·
X-Plane 12 | ViperJet eX by Aerobask | Review
A longer review explores the Aerobask ViperJet eX in X-Plane 12.
Simulator · Aerobask ViperJet eX · X-Plane 12
Watch on YouTube ↗Preview images are served by AirframeDB. Videos open on YouTube only when you choose to watch.
Meet ViperJet
Viper Aircraft's homebuilt ViperJet has tandem seats under a canopy, a composite low-wing airframe and retractable gear. Side intakes supply the engine. Aerobask's ViperJet EX has its own simulator equipment and features documented by the developer.
ViperJet
Aircraft type designators
Use the code for the model you are flying. The linked authority lists the applicable aircraft.
History & design
Development milestones
Designer: Scott Hanchette
First flight: October 1999
Developed from: Viper Aircraft Viperfan
Wikipedia contributors · Viper Aircraft ViperJet ↗Viper Aircraft ViperJet · family/variant named by the source · Wikipedia revision 1335060091
Pilot accounts
A prototype visit turns into a surprisingly comfortable ride
Rozendaal arrived expecting a utilitarian prototype and brought clothing to match. Instead, he found a finished interior, air conditioning and a demonstration pilot dressed for an ordinary day. The rear seat was comfortable, although tight around his elbows, and the aircraft made a much more polished impression than he had anticipated.
Once airborne, the brisk climb gave way to handling exercises and formation flying beside the camera aircraft. He enjoyed the control response while noticing the attention required to hold altitude precisely at speed. The speed brake brought its own rumble and change in pitch. After the short flight, enthusiasm for the experience sat alongside a clear appreciation of the fuel it had consumed.
KITPLANES · January 2009. MkII demonstration at Pasco with Greg Bennett. Rozendaal flew airwork from the rear seat; Bennett handled takeoff and landing.
Read the full account · KITPLANES ↗Fifteen years of building meet the realities of ownership
Skinner’s ViperJet represented fifteen years of work. By the time Prizio visited, the aircraft had flown, but its owner was still working with instructor Doug Medore towards flying it independently. The pleasure of creating a jet had become a different challenge: learning its demands and dealing with the problems that appeared in service.
Skinner described precise pitch control at speed, repairs after a nose-gear problem, and a computer replacement. Fuel consumption also complicated the travelling he had imagined doing. He remained someone who loved building aeroplanes, yet said he probably would not choose this project again.
Dave Prizio, KITPLANES · September 2015. Owner of N999VJ, an original ViperJet rather than the MkII or simulated EX; training with Doug “Bones” Medore was continuing.
Read the full account · KITPLANES ↗A test pilot combines excitement with owner instruction
Fox brought a former Navy pilot’s experience to testing the ViperJet. He still enjoyed the prospect of more power, but told the magazine that the aircraft already offered exciting departures and room for straightforward aerobatic flying. What pleased him was the combination of that performance with handling he found accommodating.
His work also connected the prototype programme with customers reaching the end of their builds. Fox or a colleague provided their introductions to the finished aircraft, often for pilots arriving with years in complex singles or twins. Demonstration passengers sometimes asked about an ejection seat. The article’s answer was unambiguous: this privately built jet did not have one.
Interview in fliegermagazin 7/2007. Factory test and demonstration pilot on the MkII programme; comments are attributed impressions, not operating limits for the simulated EX.
Read the full account · fliegermagazin ↗In your simulator
Systems, equipment and documentation for each developer’s aircraft.
X-Plane 12ViperJet
Aerobask · Released
ViperJet
Aerobask · Released
Aircraft specifications
Published figures for the named real-aircraft variant. Simulator equipment and performance can differ.
| Specification | Published value |
|---|---|
| Length | 25 ft 6 in (7.80 m) |
| Wingspan | 27 ft 10 in (8.48 m) |
| Empty weight | 3,200 lb (1,452 kg) |
| Gross weight | 5,100 lb (2,320 kg) |
| Powerplant | 1 × General Electric CJ-610 , 2,850 lbf (12.7 kN) thrust |
| Maximum speed | 500–525 mph (804–845 km/h, 434–456 kn) |
| Cruise speed | 375 mph (603 km/h, 326 kn) |
| Stall speed | 80 mph (130 km/h, 70 kn) |
| Range | 920 mi (1,480 km, 800 nmi) |
| Service ceiling | 35,000 ft (10,500 m) |
| Rate of climb | 12,000 ft/min (61 m/s) |
Manuals & resources
Find your next read
Choose a topic for a short introduction and a link to the original source. Simulator references identify the developer and edition they cover.
Simulator documentation
The EX has a configurable instrument panelViperJet · Aerobask · X-Plane 12
Aerobask lists an Avidyne EXP5000 with optional synthetic vision, a head-up display and a DFC90 autopilot. Screen instruments and the autopilot offer configurable popups and popouts.
ViperJet EX · X-Plane 12
Aerobask · Read the source ↗Bring charts and cockpit controls closerViperJet · Aerobask · X-Plane 12
The product lists AviTab integration, VR-friendly manipulators and a supplied VR configuration. Canopy effects include rain and defrost.
X-Plane 12 edition; no unlisted device compatibility inferred
Aerobask · Read the source ↗Check the stated GTN limitationViperJet · Aerobask · X-Plane 12
The default configuration uses Laminar’s GNS530 and a custom GTX330. RealityXP GTN750 support is explicitly described as awaiting X-Plane 12 testing and potentially needing an update.
Developer page caveat; availability is not assumed
Aerobask · Read the source ↗Configure the aircraft for flying or displayViperJet · Aerobask · X-Plane 12
The options include coloured smoke emitters, ground equipment, canopy-lock and seal logic, and functional breakers with adjustable reliability.
Developer feature list
Aerobask · Read the source ↗Pilot account
A prototype visit turns into a surprisingly comfortable rideKITPLANES · January 2009. MkII demonstration at Pasco with Greg Bennett. Rozendaal flew airwork from the rear seat; Bennett handled takeoff and landing.
Rozendaal arrived expecting a utilitarian prototype and brought clothing to match. Instead, he found a finished interior, air conditioning and a demonstration pilot dressed for an ordinary day. The rear seat was comfortable, although tight around his elbows, and the aircraft made a much more polished impression than he had anticipated. Once airborne, the brisk climb gave way to handling exercises and formation flying beside the camera aircraft.
Doug Rozendaal
KITPLANES · Read the source ↗Fifteen years of building meet the realities of ownershipDave Prizio, KITPLANES · September 2015. Owner of N999VJ, an original ViperJet rather than the MkII or simulated EX; training with Doug “Bones” Medore was continuing.
Skinner’s ViperJet represented fifteen years of work. By the time Prizio visited, the aircraft had flown, but its owner was still working with instructor Doug Medore towards flying it independently. The pleasure of creating a jet had become a different challenge: learning its demands and dealing with the problems that appeared in service. Skinner described precise pitch control at speed, repairs after a nose-gear problem, and a computer replacement.
Rusty Skinner
KITPLANES · Read the source ↗Read the original documentation from the people who created it. Manuals open on their publisher’s website.
Aircraft background
Viper Aircraft ViperJetWikipedia contributors · Research background · retrieved 2026-09-12Product
ViperJet EXAerobask · Official developer / designated store catalogue · checked 2026-09-12Type designator
ICAO Doc 8643 — aircraft type designatorsInternational Civil Aviation Organization · Public search data retrieved 2026-09-14; authority update 2026-09-03Built-in force-feedback profiles
Read the documentary basis, editable starting settings and remaining questions for the aircraft you fly. Each explanation refers to the exact profile revision shown.
Catalogue programme-20261022-v1 · 2 profile choices
Aerobask ViperJet eX
Aerobask · Free and Pro · Revision 3 · Inherited starting point
X-Plane 12
Aerobask ViperJet eX: The selected response supplies small-jet stick resistance.
ViperJet
Free and Pro · Revision 1 · Partial review
X-Plane 12
ViperJet: The selected response supplies small-jet stick resistance.
Discuss this aircraft (0)
Questions, observations and useful sources from the community.
No published discussions yet. Bring a question or share a useful source.
Open aircraft discussions →Content expanded · What’s new
Something missing or a source that needs attention?
Suggest a correction ↗
