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Saint-Hyacinthe Aerodrome (CSU3) is a small general-aviation field about three nautical miles west of Saint-Hyacinthe, Quebec, notable for combining a paved runway with a man-made water basin used almost exclusively by floatplanes. It is a privately managed field that reflects the diversity of general aviation activity in the region, making it an interesting stop for VFR pilots exploring the area southeast of Montreal.
Saint-Hyacinthe Aerodrome is a general aviation facility situated close to the town of Saint-Hyacinthe, Quebec. It is privately managed and is described as an example of the diversity found in general aviation, with almost all floatplane traffic using a purpose-built water basin alongside the conventional runway. This mix of landplane and seaplane operations at a single site gives it a distinctive character for visiting VFR pilots.
The aerodrome lies approximately 3 nautical miles (5.6 km) west of the town of Saint-Hyacinthe, Quebec, Canada. No specific controlled airspace classification, FIR boundary detail, or nearby controlled fields are given in the available sources, so pilots should consult current Canadian aeronautical charts for the applicable airspace class and any adjoining control zones.
The aerodrome has two physical runways. Runway 02/20 is 3,810 feet long, has a hard surface, and is lit. A second runway, 02R/20L, is 1,694 feet long, has a water surface, and is also lit; this is the man-made water basin used by the aerodrome's floatplane traffic.
The aerodrome uses an Aerodrome Traffic Frequency (ATF) of 123.2 MHz. No navaids or published instrument approach procedures are noted in the available data, indicating that operations are conducted visually.
No specific joining procedures, circuit heights, or noise abatement restrictions are given in the available sources; pilots should broadcast on the ATF of 123.2 MHz and follow standard uncontrolled-aerodrome circuit practice, taking care to remain alert for floatplane movements on the water basin alongside fixed-wing traffic on the hard runway.
No specific visual reference points are documented in the available sources.
Saint-Hyacinthe Aerodrome has developed under private management and is noted as an example of the diversity that characterises general aviation, distinguished in particular by the presence of a man-made water basin on which almost all floatplane traffic at the field operates, alongside its conventional hard-surface runway.
The aerodrome continues to operate under private management, supporting a mix of landplane and floatplane activity, with floatplanes making almost exclusive use of the man-made water basin. No specific fuel availability, operating hours, or PPR requirements are stated in the available sources.
