How a private jet designer can turn a pre-owned airframe into a ready-to-fly, capital-efficient alternative to a long delivery slot.
Buyers who want a large-cabin jet today face long factory queues. Robb Report’s October 18, 2026 coverage of the trend reports that owners can update pre-owned jets for a fraction of the cost of a factory-fresh one, and buyers can take delivery in months instead of years. Whether that holds for a given aircraft depends on how well the design, engineering and scheduling are planned, which is where a private jet designer comes in.
The factory queue is real, though it varies by model
According to GlobalAir.com’s analysis of General Dynamics’ second-quarter 2026 results, Gulfstream is taking in orders faster than it can produce jets, with a book-to-bill ratio of roughly 1.5 to 1. The same analysis notes that this sets up delivery-slot conversations measured in years rather than months. Robb Report quotes top private jet designer Sarah Larranaga on the longest waits: for a Falcon 10X, “2030 is what they’re saying now.” The magazine adds that new-jet pricing can reach $75 million before any customization begins.
The wider market looks somewhat different. Global Jet Capital’s Q1 2026 market brief, as summarized by Just Helicopters, reports that industry-wide lead times have settled between 18 and 24 months.
So the wait depends heavily on the manufacturer and the model, but in both accounts it is long.
The pre-owned market is tight too
Turning to used aircraft is not a shortcut to easy shopping. AMSTAT’s Q2 2026 data, reported by GlobalAir.com, shows 6.5% of the jet fleet for sale, against an 8.1% long-term norm, with only 5.2% of heavy jets listed. Broker jetAVIVA’s mid-year update adds that deal cycles remain well above historical averages, partly because pre-purchase inspections uncover maintenance items that need hard-to-source parts.
For buyers, the practical result is that the right aircraft is rarely a perfect one. It is often sound mechanically but dated in the cabin, the connectivity, or the exterior. That gap is where an overhaul earns its place.
Where capital efficiency comes from
GlobalAir.com’s recent analysis of used jets versus factory slots makes two useful points. First, an older aircraft can release more capital, but it brings greater repair, financing and resale uncertainty. Second, a used jet only beats the factory queue if it can fly soon after closing.
That second point is a scheduling problem as much as a financial one. In a GlobalAir.com feature, top private jet designer Sarah Larranaga outlines planning figures she uses: roughly 4 to 5 weeks for exterior paint, 10 to 16 weeks for a meaningful interior refurbishment, and 1 to 3 weeks for a connectivity installation. She also notes that some top high-speed connectivity equipment currently has a 12 to 16 week lead time, and that the bigger issue is often getting a slot, since the right completion center may be unable to take the aircraft for six months. Taking those figures at face value, a six-month wait for a slot followed by a 16-week interior program lands at roughly ten months, which sits inside the 18 to 24 month range reported for new deliveries. She describes full interior and exterior refurbishments as typically running from $1.5 million to $6 million, and cautions that costs vary widely with aircraft size and scope. Any comparison with a new-build price should therefore be made aircraft by aircraft.
Design decisions that protect resale value
Independent analyst Rolland Vincent warns in Robb Report that highly customized changes will almost certainly shrink the resale market and the price an aircraft commands. Sarah’s approach in the GlobalAir feature responds to that risk: An overhaul is an asset decision, not just a styling exercise. In the same feature, Sarah recommends timeless materials and finishes, such as quality leather and updated plating, that suit a broad range of future owners. She suggests that personal touches such as crests or logos be easy to remove or swap out, because a cabin that cannot be undone narrows the buyer pool. She also stresses professional oversight covering weight, certification and quality control, since problems caught during the work cost far less than problems found after delivery. Her view that connectivity has become a baseline expectation is supported by the technology itself. Gogo’s Galileo FDX, built for business aviation, is described as delivering download speeds up to 195 Mbps throughout the cabin. Robb Report also quotes her saying that modern technology can make a used aircraft almost stronger than when it was first built.
A completed example: Verdant Sky | Dassault Falcon 2000
Sarah Larranaga Aviation Design completed Verdant Sky, a fully upgraded Dassault Falcon 2000. The project, carried out with West Star Aviation as the completion center, combined Starlink high-speed Wi-Fi, a Rockwell Collins Venue cabin management system, Alto sound and Prism lighting with bespoke emerald-gloss cabinetry and hand-stitched seating. According to the International Yacht & Aviation Awards organizer, design et al lists it as shortlisted for the 2026 Private Jet Design Award. Sarah Larranaga won the 2026 International Design Pioneer Award for Verdant Sky. It shows how a mid-size, previously flown airframe can be rebuilt around modern technology and a cohesive design without waiting for a new delivery.
Robb Report’s 2026 Best of the Best issue spotlighted Sarah among nine innovators transforming the luxury landscape, in its Wings category as “The Cabin Master.” The magazine notes she has delivered more than 100 aircraft from Gulfstream, Dassault, Bombardier, Boeing and Airbus over about 20 years, from a Los Angeles studio that handles work from initial concept to refurbishment.
What to take from the data
Factory backlogs and tight used inventory mean most buyers will compromise somewhere. A pre-owned aircraft with a carefully scoped overhaul lets the owner decide where. The strongest results come from fixing what buyers and passengers notice most, leaving room for the next owner, and booking design, engineering and completion slots early.
Owners weighing a pre-owned purchase or a refresh can talk through scope, sequencing and slot planning with Sarah Larranaga Aviation Design before committing to a private jet.