Embraer E175

The Embraer E175 is a member of the original E-Jet family, the aircraft that established Embraer in the mainline-regional market during the 2000s. Embraer launched the E-Jets in the late 1990s to move beyond its earlier ERJ regional jets, and designed a family of four sizes sharing a common fuselage cross-section and systems: the E170, the slightly stretched E175, the larger E190 and the longest E195. The E170 flew first, in 2002. The E175, a modest stretch of the E170 seating roughly 76 to 88 passengers, first flew in 2003 and entered service in 2005, with Air Canada among the early operators.

Its ICAO type designator is E75L, denoting the long-wing configuration that current examples use; an earlier short-wing variant carried the code E75S. Both are the first-generation E175, distinct from the later E175-E2.

The E175 sits at the top of the traditional regional-jet class. Its cabin is wider and taller than the Bombardier CRJ's, with four-abreast seating, larger windows and more overhead space, a difference passengers notice and airlines market. That relative roominess, combined with the aircraft's size, made it well suited to a particular commercial niche in the United States, and that niche is defined by scope clauses.

In the United States, pilots at the major airlines negotiate contracts that limit how much flying their employer may outsource to lower-cost regional affiliates. These clauses cap the regional fleet by aircraft size, typically to a maximum of 76 seats and about 86,000 pounds, roughly 39,000 kilograms, maximum take-off weight. The first-generation E175 fits within those limits while offering the largest cabin available in the category. As a result it became the default choice for United States regional fleet renewal, steadily replacing older 50-seat jets and winning orders over the competing CRJ900.

The consequence is that the E175 has become the backbone of United States regional jet flying, ordered in large numbers by the regional partners of American, Delta, United and Alaska. Embraer designed a second-generation successor, the E175-E2, with new engines and a new wing, but its greater weight exceeds current scope limits, so it has attracted no United States orders and the program has been effectively paused. Rather than replace the E175 with the E2, Embraer has continued building the first-generation aircraft specifically for the North American market, an unusual case of an older model outliving its intended successor because of a labour-contract limit. The E175 remains in production, and its longer-term future is tied closely to whether United States scope clauses are ever relaxed.

The E175's most consequential design choice is its cabin. Embraer gave the E-Jets a double-bubble fuselage cross-section that is wider and taller than the Bombardier CRJ's business-jet-derived tube, allowing four-abreast, two-plus-two seating with no middle seat, larger windows, and enough headroom and bin volume that passengers often perceive it as closer to a mainline jet than a regional one. This cabin advantage over the CRJ is central to the type's commercial appeal, and Embraer has marketed it to both airlines and their passengers.

Two General Electric CF34-8E turbofans are mounted conventionally on pylons under the wing, rather than at the rear fuselage as on the CRJ, and the tailplane is set low on the fuselage rather than in a T-tail. The wing is moderately swept and, on current long-wing E75L aircraft, fitted with angled winglets.

Because the United States market drove its configuration, most E175s are delivered in a two-class layout of around 76 seats, with a first-class cabin and often a separate extra-legroom economy section, arranged to sit within airline scope-clause weight and seat limits. The flight deck uses Honeywell Primus avionics with large displays. The aircraft shares a common pilot type rating with the rest of the first-generation E-Jet family, easing crew training and fleet flexibility for the regional operators that fly more than one E-Jet size.

In the United States the E175 is flown almost exclusively under the regional-affiliate model: regional companies such as Republic Airways, SkyWest, Envoy Air and Horizon Air operate the aircraft in the colours of American Eagle, Delta Connection, United Express or Alaska, under capacity-purchase agreements with those major carriers. This model, shaped by scope clauses, is why the E175 dominates United States regional fleets. Outside North America the type is also used, though in smaller numbers, by carriers flying it on regional and thinner mainline routes in Europe, Asia and elsewhere, sometimes in mainline rather than affiliate colours. Its role is to link smaller cities to major hubs and to add frequency on routes that do not need a full narrowbody, offering a cabin experience close to a mainline jet at regional-aircraft economics. The large United States order book means it is among the most numerous regional jets flying.

The E175 is best identified by its under-wing engines and conventional low tail, the features that most clearly separate it from the CRJ family it competes with. Where a CRJ900 hangs its engines on the rear fuselage under a T-tail, the E175 carries them on pylons beneath the wing and has its tailplane low on the rear fuselage. The E-Jet fuselage is rounder and deeper, with larger windows set higher on the side. Distinguishing the E175 from its family members is harder, as they share the same cross-section: the E175 is slightly longer than the E170 and clearly shorter than the E190 and E195, so window count, door count and overall length are the cues. Current E175s wear angled winglets at the wingtips.