1977
Year
C-GEMS — 1977 Pitts S-1D
C-GEMS is an amateur-built 1977 Pitts S-1D based in Regina, Saskatchewan, listed on the Transport Canada Civil Aircraft Register (serial 374).
Experimental / homebuilt
Category
Saskatchewan
Based
1
On CA register
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The aircraft
Year built1977 · 49 years old
Airframe typeWhether Transport Canada classes it as an aeroplane, a helicopter, a glider, a balloon or a gyroplane.Aeroplane
Engine typeHow the engine makes power. Piston engines run on avgas like a car engine; turboprops and jets burn turbine fuel, cost far more to overhaul, and are usually reserved for bigger or faster aircraft.Piston
Engines1
Max take-off weightMaximum take-off weight: the heaviest the aircraft may legally be when it starts its take-off roll, including fuel, people and baggage. It's the number that decides what licence and ratings you need, and what it costs to park.521 kg · 1,149 lb
Where it's based
BasedThe city or airport Transport Canada holds as the aircraft's base. Where the field holds a four-letter code like CYXE, that's the airport's ICAO identifier.Regina, Saskatchewan
Transport Canada officeThe Transport Canada regional office that administers this registration. It follows the owner's address, so it isn't always the nearest office to where the aircraft actually sits.Winnipeg
Identity
Serial numberThe manufacturer's own number for this individual airframe, stamped on a plate. Unlike the registration, it never changes. It identifies the aircraft across every country it's ever been registered in.374
ManufacturerThe full legal name of the company that built it, which is often not the name on the tail. A Cessna 172 built in 2022 was made by Textron Aviation.E.V. Stacey
Built inWhere the aircraft was manufactured. Most of Canada's fleet was built in the United States.Canada
ICAO 24-bit addressA unique 24-bit number your transponder broadcasts with every Mode S and ADS-B message. Flight trackers key on it rather than the tail number. Canada's block runs C00000 to C3FFFF, which is why Canadian aircraft nearly all start C0 to C3. Transport Canada assigns it against the registration, so it changes if the aircraft is re-registered.C05083
Registration
Registration typePrivate, Commercial or State. Commercial means the registration permits use for hire or reward, like charter, flight training or aerial work. It describes the registration, not who owns the aircraft.Private
AirworthinessAmateur-built: the owner built at least half of it themselves, under Transport Canada's homebuilt standard. It cannot be flown for hire or reward, so no charter, no rental and no paid flight training.Special Certificate of Airworthiness Amateur Built
Basis of registrationThe rule the aircraft is registered under. Most are registered against a type certificate, meaning they're a factory design approved by the regulator; amateur-built and ultralight aircraft come in under their own standards.CAR Standard 549 - Amateur Built Aircraft
Registered sinceWhen the current registration took effect. A recent date usually means the aircraft changed hands or was re-registered. It isn't the year it was built.12 January 2001
Where C-GEMS is, and how to track it
C-GEMS transmits ADS-B under the 24-bit address C05083. Trackers key on that address rather than the tail number, so it finds the aircraft even on flights flown under a different callsign. Transport Canada assigns the address against the registration, so it changes if the aircraft is re-registered.
Most private aircraft spend most of their time on the ground. If a tracker shows nothing, it's probably just parked.
The owner of record and the certificate history are on Transport Canada's own lookup: see C-GEMS on the Transport Canada register →
How rare is C-GEMS?
The Pitts PITTS S-1D is very rare in Canada. There are 1 on the register.
- Half of Canada's experimental / homebuilt aircraft were built before 2001. C-GEMS is older than most.
- Canada has 61 Pitts aircraft of all models.
- Canada has 4,126 experimental / homebuilt aircraft, 195 of them in Saskatchewan.
- 91 aircraft are based in Regina. See them all →
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Canadian Civil Aircraft Register, current to September 17, 2026. Aircraft data reproduced and distributed with the permission of the Government of Canada. MarketPlane.ca is not affiliated with Transport Canada.