Wiktionary
a. 1 Between planes 2 Between the wings of a biplane
Usage examples of "interplane".
Rebecca Furness, who was now dropping on their second target, said on the interplane frequency just as Patrick switched back to normal radio.
On the interplane frequency, he said, "Three-Zero flight, Two-Zero flight is in fingertip in the anchor at one seven thousand block one eight thousand.
It may be too late already, sir, what with their interplane frequency being jammed like that.
Sivarek's wingman, flying in an identical F- 16C, responded on the interplane frequency.
On the interplane frequency, he called out, "Sila Zero-Two, bandits are at your twelve to one o'clock, thirty miles and closing at five hundred eighty knots.
He double-checked that the MASTER ARM switch was OFF, selected AIM-9 on the weapons panel, got a flashing SHOOT indication in his heads-up display, then called out on interplane, "
On the new secure interplane frequency, he radioed, "Stalkers, Stalkers, this is Stalker One, your bandit is now two-twoone degrees bull's-eye, range three-one miles, level at angels three-one, turning right, possibly racetracking around for another pass.
On interplane frequency, he yelled, "Home plate, Kitchen, Kitchen, I am tracking two fast-movers passing angels fifty, speed Mach two"
ABOARD THE CV-22 PAVE HAMMER TILT-ROTOR, OVER THE GULF OF OMAN THAT SAME TIME The CV-22 Pave Hammer tilt-rotor aircraft's refueling probe had no sooner nestled into the HC-130P Hercules tanker's lighted basket of the refueling drogue and transferred a few hundred pounds of JP-7 fuel when the navigator aboard the HC-130P Hercules called on secure interplane, "Hammer Zero-One, Peninsula Shield Skywatch is reporting a single helicopter, designate Target Seven, leaving the deck of the Khomeini.