Lorenz is building LAPP — the Lorenz Airspace Protocol — an open coordination framework that uses heading-based altitude stratification and market-priced slot auctions to manage dense eVTOL traffic safely and efficiently.
Joby, Archer, Lilium, and dozens of other companies are racing to certify eVTOL aircraft for urban air mobility. But every one of them assumes someone else will solve the airspace coordination problem — the question of how hundreds of vehicles share the same low-altitude sky safely, efficiently, and at scale.
Today, that altitude band (500–2,000 feet above ground) is essentially unstructured. No protocol defines how aircraft select altitudes, resolve route conflicts, or allocate scarce airspace during congestion. The FAA's UTM framework provides architecture but not the protocol. EASA's U-space defines service levels but not allocation logic.
Lorenz is filling that gap.
LAPP is an open coordination protocol — analogous to TCP/IP for internet traffic — that defines how eVTOL vehicles share low-altitude airspace. Any aircraft implementing the LAPP stack can operate in LAPP-managed airspace, regardless of manufacturer.
Eight altitude layers, each assigned to a compass octant. Aircraft select cruise altitude from their direction of travel. Head-on conflicts eliminated by convention, not computation.
Turn-point contention resolved by sealed-bid second-price (Vickrey) auctions. Scarce airspace goes to the aircraft that values it most. Revenue funds the infrastructure.
Emergency and public-safety aircraft receive absolute priority at zero cost. Commercial auction revenues fund this capacity. The market is real, but safety isn't for sale.
LAPP is proposed as an open protocol. Lorenz operates the reference implementation and ledger infrastructure — the exchange, not the traders.
Protocol parameters derived from agent-based simulation. Optimal lane tolerance identified at 5–7°. Auction vs. FCFS tradeoffs quantified. Results published in the whitepaper.
40% protocol operator. 30% infrastructure fund. 20% regulatory compliance. 10% access subsidy. Airspace coordination that funds itself.
The Aeroboticar is the first aircraft designed from the ground up around the LAPP protocol — engineered to meet the climb rates, energy profiles, and communication requirements that the airspace standard demands.
It is the Pixel to LAPP's Android: reference hardware that proves the protocol works in physical flight. Currently in 1:5 scale prototype, with full-scale development underway.
Lorenz is looking for aerospace engineers, air traffic management researchers, aviation regulators, and eVTOL operators interested in contributing to the development of an open airspace coordination standard.