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Comfortable, fast, and cost effective:  Synergy is a new class of airplane.

A Remarkable Breakthrough

Synergy_wideSynergy is an airplane designed to safely fly one to six people directly from town to town, in less time and at less cost than airliners or automobiles. Its innovative technologies provide the key to economical regional transportation in the speed range between supercars and commercial jets.

Right now personal airplanes are neither reasonable nor economical nor efficient. No fast planes offer the kind of seating, payload, and go-anywhere utility to compete with the family automobile, not even private jets. This is because no previous planes have used Synergy’s systematic approach to reducing the energy cost of flight at higher airspeeds, while preserving low costs and low speed landings.

The same patented DBT advantages that give Synergy its exceptional stability, speed, and control (through drag reduction!) also allow it to be more comfortable and spacious. And safer, thanks to its inherent stall resistance and excellent low speed handling.

Synergy Aircraft is beginning a transition from project to product development as we work to increase our available resources, launch a compelling business opportunity, and complete the full-scale aircraft prototype, well underway.    (flight photos are of the v.18 scale model)

We believe that simple aircraft built on the right foundations -both in business and design- are a beneficial investment in mobility and quality of life.

Group travel in our comfortable, affordable smartplanes™ would be faster and more economical than any other form of regional transportation.

At Synergy Aircraft, we understand that for personal airplanes to reconnect with their potential customers, or realize their potential benefit to society, they must provide:

  • Greatly reduced travel time.
  • True passenger safety.
  • Far lower price.
  • Quiet, neighborhood manners.
  • Adaptability to hybrid, electric, and other advanced engine technologies.
  • A more spacious cabin.
  • A quiet, smooth ride.
  • Far greater economy, using common fuels.
  • Easier operation.
  • Slow landings at tiny airfields.
  • Advanced smartplane(TM) autonomy

Synergy is the first and only aircraft designed to achieve all of these benefits, by working the entire problem at once: fundamental flight physics, human factors, and industrial economics. Because it solves one of the largest shared problems in the modern world, we are utterly committed to bringing it to life. We appreciate your interest, and we welcome the assistance of everyone who believes it is long past time for the modern airplane to arrive.

Synergy Prime: Fundamentals First

Synergy in flightSomething known since the 1950s, yet hardly acknowledged, is that even though some airplanes fly at very low speeds efficiently, and others fly at very high speeds efficiently, all prior aircraft waste enormous amounts of energy to fly in the mid-subsonic speed range. The economics of on-demand regional flight are abysmal, and that is why we don’t all have our own airplanes.

The problem is the way that existing aircraft (don’t fully) deal with aerodynamic drag. Through its comprehensive, patented design, Synergy became the first aircraft to directly attack the hidden issues causing the problem, then simultaneously apply six of the most advanced drag reduction technologies to fix them.

The first key is its distinctive double boxtail™” wing-becomes-tail configuration. (Similar-looking but inferior “box wing” ideas have been rejected for decades because they’re unstable, structurally vulnerable, and create interference drag.) In contrast, Synergy’s DBT configuration provides rock-solid stability and control by reducing the dominant cause of drag at lower speeds and/or higher altitudes, which is called “induced drag”.

Unlike every boxwing design, the twin horizontal tails -above and behind each wingtip- aren’t ‘wings’ to make more lift. In fact, these control surfaces actually create a downward force most of the time. Putting the right amount of this downward force in the right place above the wingtip reacts against ‘induced drag’ so well that it actually reduces the total drag, a lot like a sailplane reduces its total drag by adding wingspan.  Some think of it like origami: folding up a long wing in 3-D space to achieve stable, high-speed flight while carrying a lot more useful load than a glider.


Better yet, Synergy’s unique configuration makes proven high-speed drag reduction technologies (such as laminar flow, pressure thrust, and powered drag reduction) easy to implement. Synergy has a high “span efficiency” and lightweight structure, helping it reach the speeds where passive and “active” drag reduction can supply major efficiency gains. It then adds a turbocharged jet-fuel diesel engine, a ballistic parachute, and next-generation, self-flying smartplane electronics that will quickly lower the barriers to personally operating an airplane.

Most species on earth fly, for the simple reason that it is by far the most efficient way to travel. Synergy brings the right innovations to finally make direct, on-demand regional travel a financially sustainable reality for humans. Operational costs can be expressed as mere pennies per passenger-mile. Thanks to its tiny number of simple, modular parts, the design is able to scale into low cost mass production, and to adapt in its details to accommodate a multitude of priorities, such as different ways of loading and entering its spacious interior.

With such production comes demand on a par with other dramatic, consumer-focused innovations no one saw coming. Positive regulatory progress is already happening swiftly in response to the safety and cost advantages of smart, semi-autonomous technologies for simplified operations in small aircraft. Whereas self driving cars are just emerging, self-flying airplanes have been a reality for decades, and smartplane (TM) operator requirements will adapt with the responsible deployment of proven capabilities. Really, the potential for quiet, roomy, fast, fundamentally efficient personal aircraft is many times beyond typical estimates, in which the above has been far out of reach.

Synergy and its progeny are the future our great-grandparents built 20,000 rural airports for, but the irony is that its capabilities hand a forgotten industry the largest business challenge it has ever seen. Even with Synergy’s ultra-simplified modular design, the latent demand acquired during half a century of waiting for affordable personal flight to arrive cannot be met as quickly as mass markets require. We are tackling that problem foremost by developing scalable methods for low cost mass production and by making the case for massive societal investment in this overlooked opportunity.

Unrealistic business thinking has consistently led to predictable and spectacular prior business failures in aviation; thereafter to a deserved lack of capital. Yet society needs a solution so badly that rosy investment pitches for the next ‘gung-ho failure in progress’ seem never-ending. It’s not a healthy ecosystem in which to float a legitimate solution.

Many today confuse the relatively tame technological risk of new airplane development with this epic business risk. To finally succeed will require that participants learn where they really have been until now and where they are really going… especially to not repeat the mistakes of the many who came before. Flexible, adaptive, strategically focused leadership is required.

To steward such potentially profound innovation safely toward broad adoption, Synergy Aircraft founders continually refined a comprehensive, far reaching plan…even since before beginning any design work. To help offset the technology risk, in the wake of its debut, more than a thousand Team Synergy volunteers and financial supporters from around the world united behind John McGinnis and his small team of visionary partners to help build the prototype Double Boxtail™ aircraft… starting, naturally, in his father’s garage!

This intentionally ‘grassroots effort’ permitted thousands of engineering challenges to be met without the risks, distractions, or ‘shortcut-itis’ brought by premature business hoopla. New facilities, contracts, licensing, and investment are helping us to continue building that momentum; we’re already in the black.

Now is the time when we gather the people and resources to transition into a high growth startup company. Now is when we want to hear from those who want to see it happen. Soon, Synergy Aircraft will reveal a team and a scalable production vision of the same caliber as the product …and begin working with industry to make history.

It’s been more than a lifetime since aviation captured our collective attention.  It will take a perceptive long-term effort, in well-managed phases, to deliver its true potential. Making it possible in this case is a product concept with the required demand and profitability to reward large scale investment at each level of adoption, and a tenacious, inspiring vision. We invite your interest with appreciation.

General Aviation, the Next Generation

Fuel Efficient

Synergy is three times more fuel efficient than most General Aviation aircraft.


Synergy uses brilliant physics to achieve twice the expected speed for a given horsepower.


Due to its turbocharged rear engine, laminar-flow aerodynamics, and submarine-like tail fan, Synergy is far quieter than other aircraft.


Synergy has a spacious six-seat interior, yet a smaller total size than a two-seat trainer.

Feed the Team!

How on EARTH are you doing this?

Designing and building a completely new aircraft prototype from scratch is slow and expensive. Far too slow to offer reasonable business timelines when done as a cash-burning investment from the very beginning. But not nearly so expensive when done as a family project, by an amazing group of people who’ve made themselves TEAM SYNERGY. Although volunteers and donors still power this adventurous movement forward, please note our  permanent thanks for having launched a profitable, cashflow-positive company no longer dependent upon crowdfunding for daily operations. Donations going forward will be used to help meet the needs of our student interns and your fellow volunteers, and are augmented by Synergy Aircraft and the McGinnis family to good effect. You can be very proud of what you’ve accomplished together.

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A spammer has sent out bogus emails to vendors serving the aerospace industry, claiming to be from Synergy Aircraft. Don't open the attachment. ... See MoreSee Less

5 days ago  ·  

Our friend Curtis Kirksey, a 92 year old visitor to Synergy from Wallkill, NY, doesn't hear anymore, but he can see and he can read (and ask all the right questions, too!) His phenomenal life story of self-sacrificing service is way more valuable, important, and noble than this project he likes, thus his personal visit was very inspiring and motivating. A high honor and a privilege, Kirksey. Thank you. -John ... See MoreSee Less

2 months ago  ·  


Synergy CFD now available to all

Big news! The same incredibly powerful Computational Fluid Dynamics capabilities used by Synergy are now available to outside clientele.


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John McGinnis Speaks at TEDx Whitefish

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It was an honor and a privilege to speak about Synergy’s effect on the Regional Group Transportation problem at TEDx… Read More