Precision Objects · Handcrafted in Miami
Photographed at the Hoffmann Atelier · Miami, Florida
The R9's quiet authority doesn't come from any single tone — it comes from the way three of them sit together, with a fourth held in reserve for the parts that count most. Gold at the hub and across the propeller blades. Copper through the connecting links. Silver down the eighteen push-rods and across the valve caps. And, under the heads, a quiet silver-gold alloy on the pistons themselves — a finish that catches the light from one angle and disappears from another. Every surface is hand-finished in our Miami atelier and held to a single standard: built once, perfected once.
The propeller hub, the bullet cone, and the three propeller blades — finished in a warm gold tone, hand-polished one piece at a time. The lustre catches the light from every angle, and the propeller becomes the optical centre of the object. The first thing the eye finds.
Polished · WarmEighteen connecting links and rocker arms — finished in copper, hand-textured to read like forged metal at scale. Each link is seated and aligned by hand. No two sit exactly the same way. None are meant to.
Hand-textured · IndustrialEighteen push-rods run from the crankcase out to the cylinder heads — two per cylinder — finished in a cool, brushed silver, together with the valve caps that crown each head. Inside each cylinder, the pistons themselves carry a subtle silver-gold alloy finish. Cool against the warmth of the gold and copper above.
Brushed · Cool · Alloyed
Gold above. Copper between. Silver down the spine. Alloy at the heart.
From across the room, the R9 reads as a single object.
Up close, every tone speaks for itself.
Each Aero Mécanique R9 passes through over fifty hours of studio work — production, multi-stage hand-painting, controlled curing, individual assembly, and final inspection. There is no production line. Every unit is built one at a time at our Miami atelier.
The result is a precision object — a 9-cylinder radial engine arranged in star configuration, finished with a gold-toned hub and propeller, copper-toned connecting links, eighteen brushed-silver push-rods and valve caps, and silver-gold alloy pistons. Set on a carbon-textured composite base. Hoffmann Atelier produces, finishes, numbers, and certifies every unit personally.
The Aero Mécanique R9 — essentials
The full Hoffmann Atelier experience
Both editions share the same hand-finished precision object, the same numbered certificate, the same signed welcome letter, and the same technical blueprint. The Collector's Edition adds the premium archival display box and white-glove delivery. Each edition is limited to 100 numbered units — 100 Standard, 100 Collector's, 200 ever made.
Every unit receives a multi-coat hand-painted finish, individually cured and inspected. The surface treatment is what separates an Hoffmann Atelier piece from production replicas.
Each unit is unique, numbered, and certified. Hoffmann Atelier produces, finishes, and presents only one hundred units across both editions — closed permanently when complete.
Every Aero Mécanique R9 ships with a numbered Certificate of Authenticity, signed by Alain Hoffmann. The Collector's Edition adds a personalized welcome letter and technical blueprint.
Precision-engineered industrial polymer body. Gold-toned hub and propeller blades. Copper-toned connecting links and rocker arms. Eighteen brushed-silver push-rods (two per cylinder) and valve caps. Silver-gold alloy pistons. Carbon-fiber-textured composite base. Built for permanence.
The Collector's Edition arrives in a premium archival display box with white-glove delivery. The Standard Edition ships in protective packaging, ready for display from the moment it arrives.
One year on manufacturing defects of finish, assembly, and structural components — including base integrity. Direct atelier support, no intermediaries. Excludes user-caused wear and natural patina of the metallic tones.
Every dimension calculated. Every tolerance verified. Hoffmann Atelier production specifications.
Fully assembled, hand-finished engine
Numbered & signed by the founder
Personal letter, signed
Printed engineering schematic
Limited coverage on manufacturing defects
Both editions ship with the engine, certificate, signed letter, and blueprint. The Collector's Edition additionally includes the premium archival display box and white-glove delivery.
"Each piece carries the signature of its maker — a deliberate act of precision, the antithesis of the disposable, the mass-produced, the approximate."
I founded Hoffmann Atelier in Miami after fifteen years studying precision manufacturing across automotive and aerospace. The Aero Mécanique R9 is the first object I considered worthy of carrying my name — a sculpture that honours the radial engines that opened the early skies, rendered at one-eighth scale and finished by hand.
If you are interested in commissioning a custom piece or reserving a number in a future edition, write to me directly. I respond personally.
Hoffmann Atelier
When the run is complete, this edition closes permanently. No exceptions, no extensions.
Numbered editions are final sale — with one exception: a 14-day exchange window for shipping damage, with photographic evidence and unopened presentation packaging. Each unit ships fully insured via tracked, signature-required carrier (FedEx Priority worldwide; 5–7 business days domestic, 7–14 business days international). Customs and import duties are buyer responsibility.
