Correct answer is... 1179 kg. It is equal to 2600 lbs. Empty weight of Spectrum SA-550 is total weight of the airframe, engine, avionics and all other systems installed by manufacturer. It is higher weight then empty speed of other aircrafts of a similar size. Average is about 774 kg (1706 lbs).
The biggest civil aircraft has empty weight of 250,000 kg (628,000 lb), so Spectrum SA-550 has 0% percent of it's weight. Typical jet airliner has about 39,500 kg (87,100 lb), so in the comparision Spectrum SA-550 has 3% of aircrafts like B737 or A320.
Disclaimer: Our articles and data connected to empty weight of Spectrum SA-550 are based on public data from various sources. We are very picky to select an reliable data providers, but we cannot guarantee that everything is 100% error-proof. We recommend for any serious purpose - as a rule of thumb - to request offical data about empty weight from manufacturer of Spectrum SA-550.