JetZero’s changed Z4 BWB, Part 3: the business plan

JetZero’s changed Z4 BWB, Part 3: the business plan Subscription required By Bjorn Fehrm July 13, 2026, © Leeham News: After analyzing JetZero’s updated Z4 blended wing-body (BWB) to extract performance data and then develop operational fuel consumption and cash operating cost last week, we now use our Aircraft Performance and Cost Model (APCM) to develop a business plan for the updated Z4, which we refer to as the Z4U. A business plan requires that we estimate the development and production costs for the Z4U and then compare these to the net revenue at aircraft delivery to generate the payback time for the program at different net price curves. Figure 1. The updated JetZero in a tanker configuration. Source: JetZero. Though we have over 10 years of experience analyzing new aircraft programs using the APCM, we are not aiming for a 100% accurate analysis of the Z4U program, but to better understand the economics of the program and if JetZero’s published estimates for development time and Entry Into Service (EIS) are reasonable. To read the rest of the article Login or Subscribe today. Category: air force tanker, Aircraft Certification, Aircraft Development, Artificial Intelligence, Blended Wing Body, BWB, JetZero, JetZero Z4, Middle of the Market, New Midmarket Aircraft, NMA, Premium Tags: AI development support, BWB, Digital Twin, JetZero Z4, NMA