The Grampian Discovery 7.9 is a Canadian-built sailboat designed by the prolific Alex McGruer and produced by Grampian Marine from 1975 to 1977. Emerging as a refined evolution of the popular Grampian 26, the Discovery 7.9 aimed to offer a compact yet capable cruising experience. Known for its sturdy fiberglass construction, characteristic of Grampian Marine's ethos, this masthead sloop was conceived as a practical and accessible vessel for coastal cruising and weekend adventures, appealing to sailors seeking a reliable and stable platform.
Discovery 7.9 (Grampian) Information, Review, Specs
- Make
- Grampian
- Model
- Discovery 7.9
- Number Built
- Production Year(s)
- 1975 - 1977
The Discovery 7.9's history is closely tied to its predecessor, the successful Grampian 26. Designed by Alex McGruer, the Discovery 7.9 was a direct development, featuring a raised deck and coachroof that distinguished it from the earlier model. Grampian Marine, founded in 1962 by Jim Bisiker, was a Canadian pioneer in fiberglass boat construction, quickly gaining a reputation for durable and practical designs. During the mid-1970s, when the Discovery 7.9 was in production, Grampian Marine, despite facing its eventual closure in 1977, continued to focus on producing value-oriented sailboats.
Alex McGruer, the primary designer for many of Grampian's popular models, including the Grampian 26, typically aimed to create boats that were seaworthy, spacious enough for a family, and offered good headroom. The Discovery 7.9, built during Grampian Marine's later years, embodies this philosophy, providing a robust hull and a layout intended for comfortable use. Relatively few Discovery 7.9s were built, and some were even sold as hulls for owners to complete, reflecting a period of transition for the company.
Sailing Performance and Handling
The Grampian Discovery 7.9, with its fin keel and transom-hung rudder, is designed for balanced performance and stability. With a sail area to displacement ratio of approximately 17.59, the boat falls into a category suggesting decent all-around performance, capable of moving well in a variety of wind conditions without being an extreme light-air specialist or a heavy-weather slug. Its ballast to displacement ratio, a notable 0.45, indicates a high percentage of ballast relative to its overall weight, contributing significantly to its stiffness and stability, allowing it to stand up to a good breeze.
The displacement to length ratio of around 221.4 places the Discovery 7.9 in the moderate displacement category for a sailboat of its size. This suggests a comfortable motion in a seaway without sacrificing too much speed. Reviews indicate that the design incorporates a "slightly more speedy hull," compared to many similar sailboats of its era, suggesting a hull shape that prioritizes efficiency through the water. This combination of a stable platform and a relatively nimble hull design would likely result in a reassuring and enjoyable sailing experience for cruising.
Accommodations and Layout
Despite its modest length overall of 26 feet, the Grampian Discovery 7.9 was designed to offer practical and livable accommodations, consistent with Grampian Marine's focus on generous interior space. A key feature is its reported 6 feet of headroom, which is a significant advantage in a boat of this size and was a hallmark of McGruer's designs, such as the Grampian 26 on which it is based. 3, 14, builder article
While detailed interior diagrams are scarce, typical layouts for Grampian cruisers of this size generally include a V-berth forward, a head compartment, a salon with settees that often convert to berths, and a galley area. Given the era and builder's reputation, the interior likely features functional rather than luxurious finishes, with a blend of fiberglass liners and wood trim. The raised deck and coachroof, a distinguishing feature of the Discovery 7.9 over the Grampian 26, would further enhance interior volume and light, making the cabin feel more open and comfortable for extended stays.
Owner's Perspectives
Owners of Grampian sailboats, including the Discovery 7.9, benefit from a remarkably active and supportive community. Websites like "The Grampian Owners Marina" serve as central hubs for discussions, technical advice, and resource sharing, highlighting the enduring appeal and ownership experience of these vessels. While specific owner reviews for the Discovery 7.9 are less common due to the limited number built, the general sentiment among Grampian owners often praises the boats for their solid construction, reliability, and affordability on the used boat market., 17]
Common discussions in owner forums for Grampian boats of this vintage often revolve around routine maintenance for vessels that are several decades old, such as addressing potential leaks around deck fittings or the condition of original rigging and engines. The Discovery 7.9, as a solid fiberglass boat, is generally appreciated for its inherent durability, making it a sound choice for those willing to undertake common maintenance tasks associated with older fiberglass yachts. The enthusiastic owner community provides a valuable network for new and existing owners, helping to sustain the legacy of these practical Canadian cruisers.
Measurements
Construction & Hull
- Construction Material
- Fiberglass (Solid)
- Hull Type
- Monohull Sailboat
- Keel Type
- Fin
- Rudder
- 1x Transom-Hung
- Ballast
- 2300 lbs
- Displacement
- 5100 lbs
- Water Capacity
- -
- Fuel Capacity
- -
Engine
- Engine Make
- —
- Engine Model
- —
- Engine Type
- —
- Engine HP
- —
- Engine Count
- 1
- Drive Type
- —
- Fuel Type
- —
Rig & Sails
- Rig Type
- Masthead Sloop
- P (Main Luff)
- 28 ft
- E (Main Foot)
- 10 ft
- I (Foretriangle Height)
- 33.25 ft
- J (Foretriangle Base)
- 11 ft
- Forestay Length (est)
- 35.02 ft
- Main Sail Area
- 140 sqft
- Foretriangle Sail Area
- 182.88 sqft
- Total Sail Area (Reported)
- 318 sqft
- Total Sail Area (Calc)
- 322.88 sqft
Dimensions
- LOA
- 26 ft
- LWL
- 21.75 ft
- Beam
- 8.33 ft
- Draft
- 3.75 ft
- Max Headroom
- -
- Air Draft
- -
Calculations
- Hull Speed
- 6.25 kn
- Pounds per Inch Immersion
- 647.37