So I got my RZ-2 A-wing the other day. I thought I'd share a picture of LEGO's interpretations of the three generations of interceptors. And a little bit of in-universe history. (from Wookiepedia)
Delta-7 Aethersprite-class light interceptor
The Delta-7
Aethersprite-class light interceptor was a starfighter model designed by Kuat Systems Engineering and used by the Jedi Order before and during the Clone War. It was designed specifically with the Jedi in mind. The Delta-7's designers worked with the Jedi Order to create a starfighter with fewer internal systems than other starships and focused on making the controls as responsive as possible due to the Jedi's Force-sensitive capabilities. It contained an astromech droid, but unlike later starfighter models, the wings were too thin for a full astromech socket. Instead, a modified astromech was hardwired into a socket on the vessel's wing, with its dome remaining intact but its components plugged directly into the ship's computer. The droid, therefore, would play an important part in assisting the pilot with navigation, damage control, and hyperspace travel coordinates. Unlike most ships in the galaxy, the Delta-7 Jedi starfighter did not feature a built-in hyperdrive but instead relied on external hyperspace transport rings that attached to the starship, allowing it to enter hyperspace. Despite this, the ship could still attain speeds of 1,260 kph in realspace.
Behind the scenes
The starfighter was originally conceived as a "Stormtrooper Fighter", which would have linked both the Prequel and Original trilogies together. If I had to guess it's a nod the original "Stardestroyer", which was fighter craft in an early draft of 'The Star Wars', and the not the large ship we know.
RZ-1 A-wing interceptor
The RZ-1 A-wing starfighter was manufactured by Kuat Systems Engineering, of Kuat. The RZ-1 was based off the original R-22 prototype developed by Kuat as a replacement for the Republic's
Aethersprite starfighter. Rejected by the Empire, Rebel cells acquired several R-22s and stripped them down to boost the fighter's speed and acceleration to counter the Empire's new TIE/IN interceptor, making the first RZ-1. the RZ-1 was equipped with dual Novaldex J-77 Event Horizon sublight engines mounted on the stern and unlike its predecessor came equipped with a hyperdrive. The fighters were armed with two Borstel RG-9 laser cannons and Dymek HM-6 Concussion Missile Launchers with six concussion missiles each.
Behind the scenes
The A-wing appears in
Star Wars: Episode VI
Return of the Jedi. Designed by Ralph McQuarrie, they were originally colored blue but had to be changed due to the limited bluescreen technology at the time. The original coloration of the A-wings makes its first appearance on the A-wings of Phoenix Group in the second season of
Star Wars Rebels.
RZ-2 A-wing interceptor
The RZ-2 A-wing starfighter rose out of the stunning performance of the Rebel RZ-1 during the Galactic Civil War. With the original RZ-1 based on Kuat Systems Engineering's original R-22 Spearhead, the company resurrected its forgotten prototype to create the RZ-2. The RZ-2 incorporated and standardized years of Rebel field modifications made the chassis slimmer for more speed and featured generations of improvements to its many systems. The RZ-2 was part of the demilitarized New Republic Defense Fleet by seven years after the Battle of Yavin. By the time the RZ-2 was used by the Resistance during their war with the First Order, it was already decades-old, With the New Republic cutting A-wing production to a minimum, the Resistance acquired several fighters to be used for everything from reconnaissance patrols to bomber escort missions. As with the previous generation of Rebels, Resistance pilots took pride in proving they had the skills and daring to master the ultra-fast, yet temperamental, starfighter.
Behind the scenes
Much like it's in-universe history. The RZ-2 seems to have come about as a more literal interpretation of Ralph Mcquarrie's concept art.