Sheet updated September 2026
The Slingshot Project Drag UHM Mast 80 is an 80 cm ultra-high modulus carbon mast for downwind and offshore riding. Slingshot developed it with Trent Carter and Edo Tanas, focusing on one goal: going faster and further with less effort. Its profile tapers towards the fuselage, and the One-Lock connection eliminates any play between your board and the foil. You can get it with two mast head options: Tuttle, or Pedestal for track-mount boards.
KEY INFORMATION
SLINGSHOT ONE-LOCK PROJECT DRAG UHM CARBON MAST 80 - Ultra-high modulus carbon foil mast, Tuttle or Pedestal
What we like
- Ultra-high modulus carbon: This mast is stiffer than standard carbon of equal thickness. Power transfers directly from the foil to you on those long downwinds.
- Tapered profile: The mast thins towards the fuselage, right where hydrodynamic DRAG matters most. Your foil goes faster, and pumping becomes easier.
- Controlled flex: The fiber orientation expertly manages flex and torsion under load. This means the mast remains stable even when you're pushing hard.
- Two mast heads: Choose Tuttle for a rigid, direct connection, or the four-screw Pedestal for track-mount boards.
- Screwless One-Lock: The One-Lock bottom connection significantly reduces DRAG at the fuselage.
- 80 cm: Slingshot considers this the ideal compromise between efficiency and carving ease.
Use
Downwind • Race / speed • Wingfoil freeride
Available sizes
Color
Black
Included / Not included
✓ Included: Mast, bag, screw set for the chosen head
✗ Not included: Fuselage, Front Wing, stabilizer, board
DETAILED DESCRIPTION
A race mast for open water
The Project Drag UHM Mast was developed with Trent Carter and Edo Tanas, who use it for their open-ocean runs. Slingshot made it for downwind, wingfoil freeride, tow, and parawing. The brand claims a clear difference from an HM mast: it's a bit stiffer, and significantly faster and freer.
UHM carbon
Ultra-high modulus carbon offers the best stiffness-to-weight ratio, according to Slingshot. For the same thickness, the mast flexes less than a standard carbon mast. Power transfers from the foil to you without the flex that can undermine confidence on a long downwind run. The lamination controls flex and twist to keep the mast stable under load.
A race profile that tapers
The profile gradually narrows as it descends towards the fuselage connection. This design means less material in the water where DRAG is highest. Your foil glides faster, and pumping requires less resistance between strokes. At the bottom, the screwless One-Lock platform limits DRAG at the junction with the fuselage.
Tuttle or Pedestal
Two versions, same mast. The Tuttle head, with its steel collar, provides a rigid and direct connection with a board that has a Tuttle box; it comes with five M6 barrel nuts. The Pedestal version attaches with a four-screw M6 x 25 mm plate and four T-nuts, perfect for a track-mounted board. Both versions include their own bag.
SIZE GUIDE
| Version | Length | Mast head | Construction |
|---|---|---|---|
| Tuttle | 80 cm | Tuttle, steel collar | Ultra-high modulus carbon |
| Pedestal | 80 cm | 4-screw M6 plate, T-nuts (tracks) | Ultra-high modulus carbon |
TECHNICAL SPECIFICATIONS
| Specifications | |
|---|---|
| Type | Foil mast |
| Length | 80 cm |
| Construction | Ultra-high modulus carbon, controlled flex layup |
| Profile | Low drag race profile, tapered towards the fuselage |
| Mast head | Tuttle with steel collar, or Pedestal (4-screw plate) |
| Fuselage connection | One-Lock screwless |
| Tuttle delivery | Mast, bag, 5 M6 barrel nuts |
| Pedestal Delivery | Mast, bag, 4 M6 x 25 mm screws, 4 M6 T-nuts |
FAQ - SLINGSHOT PROJECT DRAG UHM MAST 80
This mast is for riders who do downwind and offshore sailing. It's also for those who want a faster mast for wingfoil freeride, tow, or parawing.
Your choice depends on your board. If you have a board with a Tuttle box, grab the Tuttle version; it comes with five M6 barrel nuts. For a board with tracks, opt for the Pedestal version, which includes four M6 x 25 mm screws and four T-nuts. The mast itself, its length, and its construction are identical across both versions.
Slingshot says this mast is slightly stiffer. It is also significantly faster and freer. This is due to the ultra-high modulus carbon and the profile, which tapers towards the fuselage.
Rinse your mast with fresh water after every session, paying special attention to the One-Lock connection and the mast head. Always check the screw set tightness, store it in its bag, and protect the leading and trailing edges from impacts.
We're a dedicated kite, wing, and foil shop in Pornichet, and we assemble Slingshot One-Lock foils all year round. If you're unsure about the mast head or compatibility with your board and wings, give us a call or stop by the shop. We'll answer all your questions with the actual equipment in hand.
▶ Need advice?
GlissEvolution, 2c avenue du Gulfstream, 44380 Pornichet (Loire-Atlantique)
09 62 64 74 77 | WhatsApp: 07 83 28 39 94, Tuesday to Saturday, 10am-1pm / 3pm-7pm
Test center available by appointment
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