Now then, lets take a look
Invisible Plane
Wonder Woman's invisible plane represented the peak of Amazon engineering. When it was decided that Wonder Woman would venture forth into the modern world of mankind, the Amazons provided her with an invisible stealth plane that could make Transatlantic flights without the need for refueling. Although the plane itself was entirely invisible to the naked eye, its pilot and occupants were still very much visible, giving the illusion of a group of people sitting in the sky. Wonder Woman could interact with the invisible plane via telepathy and sometimes used electronic devices within her tiara to command the plane's course and flight patterns.
One legend has it that the invisible plane was once a Pegasus that had been given to Princess Diana by the Gods of Mount Olympus, provided that she had the skill to tame it. As science overtook sorcery, the concept of the flying Pegasus evolved into the invisible plane.
Blackbird
Professor Xavier somehow gained at least one working version of the RS-150 Blackbird from SHIELD after the X-Men's Stratojet had been destroyed by Count Nefaria. Soon after the X-Men acquired this 7-seat version of the Blackbird, it was upgraded with Shi'ar technology, including a cloaking device. Later, it was rebuilt and remodeled by Forge.
Helicarrier
The Helicarrier, an aircraft carrier specifically designed to be itself capable of independent powered flight in addition to the standard functions of aircraft carriers, is the world headquarters and signature capital ship of the extragovernmental intelligence/defense agency S.H.I.E.L.D..
Built by Stark Industries and designed by Tony Stark, Dr. Reed Richards, and former X-Man Forge. In addition to housing a wing of fighters and other aircraft, the Helicarrier bristles with advanced weaponry, including an intercontinental ballistic missile.
The first Helicarrier was proposed by Stark Industries as a political compromise among the signatories of the treaty in response to fears that any nation hosting the Directorate's main headquarters would be subject to attack by organizations such as HYDRA with domestic political fallout sure to follow immediately thereafter.
Constructed in secret there are at least eight Helicarriers have been built over the decades, and at least two have been in simultaneous service in the last decade on several occasions.
Quinjet
Used primarily by the Avengers for transportation, the quinjet is first designed by the Wakanda Design Group, headed by Black Panther, T'Challa. Each one is equipped with VTOL capability and turbojet engines. A quinjet can reach Mach 2.1. Two highly specialized ultra-large Quinjets were used to transport various superheros through space in the Infinity Crusade mini-series.
When the New Avengers were formed, Iron Man reveals that he has three new-model Quinjets that had been in beta testing when the Avengers disbanded. One was destroyed on their first outing to the Savage Land. When Iron Man left the team during the Civil War, he brought his Quinjets with him. They are currently at the disposal of his Mighty Avengers.
Leapfrog
After the deaths of their parents at the hands of the Gibborim, the Runaways acquired the Leapfrog but it was quickly taken by the Avengers after they were separated by Social Services. However, Leapfrog met up with the Runaways when they fled their respective homes, having escaped with its cloaking device. Since then, Leapfrog had been the Runaways' transportation.