Ground-Adjustable Pitch Propulsion

One
Prop.
Any
Altitude.

Drone operators spend hundreds of dollars solving a problem caused by a $20 propeller. Mettle Labs makes it a $20 problem again — one hub that replaces your entire pitch inventory.

Ø 710 SERIES
GAP HUB v3.3
PITCH: ADJUSTABLE
7–10 IN BLADE
MTL-LABS-2026
PROTO-4 / ACTIVE
Blade Diameter Range
7–10
710 HUB FAMILY
SKUs Replaced
N1
SINGLE ADJUSTABLE HUB
Pitch Positions
CONTINUOUS GROUND-ADJUST
Design Stage
P4
PROTO 4 — 710 COREMETAL

Fixed pitch is a
design constraint
disguised as
a product.

Every drone optimized for sea level underperforms at 9,000 ft (2,740 m). The $20 propeller forces operators to design around it — stocking multiple pitch SKUs (Stock Keeping Units), over-speccing motors, and accepting degraded efficiency on every mission that deviates from the design condition.

At scale — millions of attritable defense platforms — the logistics burden becomes a program manager's problem, not a pilot's complaint. Six propeller SKUs per base, forward-deployed, across every operating altitude.

Drone operators are spending hundreds of dollars to solve a problem caused by a $20 propeller.

PROPELLER AS % OF DRONE BOM
~0.5%
OF TOTAL SYSTEM COST
PERFORMANCE CONSTRAINT
100%
OF THE MISSION ENVELOPE
ROOT CAUSE CHAIN
01 // Fixed pitch optimized for one altitude and payload condition
02 // Performance degrades at any deviation from that condition
03 // Operators stock multiple pitch SKUs per platform
04 // Inventory, logistics, and design cost compound across every unit

GAP (Ground-Adjustable Pitch)
Propulsion System

One hub assembly. Pre-set before flight. Consistent detent positions across every motor on the aircraft. No in-flight risk. No proprietary blade lock-in. No inventory problem.

01 //
One Hub, Any Pitch

The 710 CoreMetal hub accepts 7", 8", 9", and 10" blade SKUs via a single blade mount standard. Set pitch on the ground. Not at the factory.

02 //
Altitude-Optimized Geometry

Designed from aerodynamic first principles for a broader angle-of-attack range — not backward from existing tooling constraints. Performs at sea level and at 14,000 ft (4,267 m) with the same hardware.

03 //
Structural Counter-Position

Gemfan and HQProp depend on consumable fixed-pitch volume. Offering adjustable pitch would cannibalize their core business model. That's a structural moat — not a feature comparison.

Ground
adjustable.
Flight
certain.

01 //
Assess Mission Profile

Operating altitude, payload, flight time target. Parameters that never changed — now you can act on them.

02 //
Dial to Target Detent

Discrete feedback positions ensure consistent pitch across all motors. No interpolation. No guesswork. Repeatable every time.

03 //
Fly with Optimal Geometry

The blade sees the angle of attack it was designed for. Motor draws rated current. Efficiency holds.

04 //
Redeploy Anywhere

Same hub. Different altitude. Different payload. Adjust again. One SKU across your entire operation.

PARAMETERVALUE
DESIGNATION710 CoreMetal
DESIGN REVProto 4 v3.3
BLADE DIAMETER7–10 in / 178–254 mm
COMPONENTS4 Primary Machined
HUB MATERIALAl6061 / POM / SS304
BLADE MATERIALGF-Nylon / CF (dev)
ADJUSTMENT TYPEGround — Pre-Settable
NEXT HUB FAMILY1315 — 13/15 in Blades
IP STATUSProvisional Filed
MFG (SCALE)Injection Mold — RFQ Active

Validated first.
Scaled through defense.

Defense drone technology has consistently proven in the commercial market first. Cinematographer validation is the legitimate first step — not a consolation prize.

STAGE 01 — ORIGIN MARKET
Cinematographers

Global mobile operators flying across dramatic altitude variation. High feedback density, fast cycle testing, real operating conditions. The ICP (Ideal Customer Profile) that sharpens the problem statement before defense engagement.

ACTIVE — CUSTOMER DISCOVERY
STAGE 02 — SCALE MARKET
Defense / UAS

At 1M+ attritable platforms per year, six propeller SKUs per forward operating base is a program manager's logistics problem. One adjustable hub is a procurement argument. Replicator initiative and Ukraine-Russia conflict have shifted DoD (Department of Defense) posture on attritable autonomous systems.

PENDING COMMERCIAL VALIDATION
STAGE 03 — EXPANSION
GIS / Commercial

Survey fleets, agricultural operators, inspection services. Multi-geography operations with altitude-variable terrain. Manufacturing economics from defense volume unlock this market's price sensitivity.

FUTURE — POST DEFENSE ENTRY
Early Access

First hardware.
Field-ready 2026.

Beta slots are limited to operators with genuine altitude-variable mission profiles. If that's you, let's talk.

METTLELABS.TECH — BOULDER, CO — ZACH@METTLELABS.TECH