Specifications That Created a Category
• Range: 6,297 km (3,400 nm): transatlantic with reserves;
• Speed: 850 km/h (459 knots): Mach 0.80 maximum;
• Capacity: 13 - 16 passengers in three cabin zones;
• Cabin: 15.19 m length, 2.11 m width - longest in large cabin;
• Engines: Two Rolls-Royce AE3007 (7,953 lbf) - reliable, efficient.
The first thing you notice is the cabin.
It is long, wide and divided into three zones. Embraer could do that because it started with an airliner fuselage rather than a conventional corporate-jet cabin. The Legacy 600 was designed for 13 passengers in the standard executive concept, with layouts varying by aircraft.
Then look at what Embraer did to the fuel system. Additional tanks were installed in the fuselage, including areas forward of the wing and behind the baggage compartment. Winglets and a drag-reduction program were added as well. That is how the original ERJ-135 platform became a business jet capable of around 3,400 nm with a lighter passenger load.
There is another useful detail. The Legacy 600 is certified to 41,000 ft, compared with 37,000 ft for the airline version of the ERJ-135.
So this was not an ERJ-135 with leather seats.