Bomma
Ork Bommas or Bommers are an entire family of aircraft dedicated in blowing those puny gitz to smithereens. Bommas come in all shapes and sizes but they all excel at their job. They are not to be confused with the Fighta-Bommer who is more of a transitional vehicle than a dedicated Bommer. The list of Bommas include the Blitza-Bommer, Heavy Bommer, Blasta Bommer and Burna-Bommer.
Blitza-Bommer
The Blitza-Bommer AKA accidental Kamikazes is an Ork dive bomber suitable for the bravest and most mentally unhinged/unstable of Flyboys. These aircrafts 'aim' their bombs by diving at the target, releasing their Boom Bomb at the very last moment possible which is something that tends to panic the onboard Grot Gunner. They often perform 'Blitz' runs where an entire squadron of these guys start peppering a targeted enemy with a barrage of bombs, hence their name.
Like every Ork mentality, you go much faster when plummeting downwards and if you paint it red you go even faster. Some Orks completely forget to pull out of their dive and end up smashing into the ground. Once they've blown everything up (and hopefully not themselves) then there's a pair of supa shootas ready to mop up any stray or squishy targets.
Blitza-Bommers are typically armed with a pair of Supa Shootas and a Grot-manned Big Shoota. Their payload consists of a pair of heavy types of bombs known as Boom Bombs.
Heavy Bommer
As their name implies, Heavy Bommers are one of the largest available Bommers in use of the Orks meant for long sustained heavy bombardment. Due to their size, Heavy Bommers can carry a much bigger payload then their smaller cousins. They are also far more noisier which complements the Ork ideas of BIG BADDA BOOM! The main problem is that there aren't many Orks willing to pilot them either because the controls are unusually small or the cockpit is cramped, so most of the crew consist of Gretchins who have the dangerous duty of pushing the unstable bombs off the rear ramp.
Sometimes of course, the bombs malfunction and accidentally blow up inside the Bommer creating a spectacular fireball of Fail.
Blasta Bommer
A sub-category of Heavy Bommers called Blasta Bommers. The Blasta Bommers are meant for low-flying ground attacks after they do their initial bombing run, therefore they are usually armed with a plethora of shootas, Zzap guns, and rokkits.
Apparently the Blasta Bommer was inspired by Imperial Marauders and (in)famous Ork philosopher and Ork Mek Boy Orkimedes came up with that idea during the Third War for Armageddon.
Burna-Bommer
The Burna-Bommer is an type of Ork attack aircraft. For some Flyboyz, guns might not be as fun as flamethrowers. Orks love fire and it was therefore inevitable that someday a Mek would think of attaching canisters of volatile promethium to the underside of an Ork Bommer, thus the Burna-Bommer was born. And like their Blitza-Bommer cousins, this aircraft performs its attack runs at as low an altitude as possible. Such a technique is, predictably filled with potential [Fail]].
Burna-Bommers usually feature a twin-linked Supa Shoota and a Grot-manned defence turret, armed with a twin-linked Big Shoota. Their payload includes two Burna Bombs and up to six incendiary Skorcha Missiles