PlanePhD

PlanePhD LLC is an aviation intelligence platform for aircraft buyers, sellers, owners and brokers in general aviation and business jets. Founded in 2014, it has its main office at 8 Wright Street, Suite 107, Westport, Connecticut, with satellite teams in Dallas and Portsmouth. The site states that it tracks 313,048 aircraft across 1,294 models and 11,962 model years.

What it offers

• Aircraft marketplace: for-sale listings across general aviation and business jets, filtered by category, price, hours and location
• Aircraft research center: specifications, ownership cost breakdowns, value retention, damage history and market availability by aircraft type
• Valuations from PAPI, the company's pricing engine, which it says is computed from 8.7 million asking price observations over three decades, refreshed monthly, and which breaks each aircraft down by model, variant, equipment and condition factor
• Operating cost figures built from maintenance labour tables, fuel burn and insurance data per model and year
• My Hangar: a tool that suggests aircraft for a pilot's hours, ratings and mission and compares what they cost to own
• Seller tools: market valuations and reach to buyers; the company says it earns from pre-buys, valuation certificates and broker introductions rather than from access to the numbers
• N-number tracking and model comparisons for owners

Team

The team listed on the site includes Adam Webster, Chief Revenue Officer, a flight instructor and corporate jet pilot who pioneered The Air Charter Directory and a contract pilot marketplace; Michael Cohen, Chief Technology Officer, with more than 30 years of software engineering experience at Amazon, BMC BladeLogic and IBM/Netezza; Dan Mastromarco, Chief Legal Officer, with more than 35 years in corporate governance and regulatory compliance; and Tyler Chapman, Chief Operating Officer, an aerospace engineer who worked on NASA and NSF CubeSat and sounding rocket programmes.

Contact

Description from the company's website (October 2026). Not a Cirrus Aircraft authorized service center. Is this your company? Claim this page to add photos and keep your details up to date.