50s SciHorror Movies
As seen on Svengooloie

Often these movies used stock military footage for aircraft. Having a scene with the fighters scrambled to fire on the monster or aliens was pretty common.

Details found at: impdb.org/

Deadly Mantis:
- Lockheed WV-2 Warning Star
- Douglas C-124C Globemaster II
- Douglas C-47 Skytrain
- Cessna LC-126R (with skis)
- Lockheed F-94C Starfire
- F-86D Sabre Dog . The SabreDog is not listed on the impdb page for Mantis, but that is the plane that attacks the monster and that actually crashes into it.

Tarantula
- Lockheed P-80B Shooting Star, 1952 Cessna 170B

Them!
- Cessna 170A, NA B-25 Mitchell, Sikorsky H-5H

Beast from 20k Fathoms
- 1943 Studebaker M-29 'Weasel'

It Came From Outer Space
- Bell 47D (without the famous "bubble" cockpit)

Fiend Without a Face
- Lockheed F-94B Starfire
- North American F-86F Sabre
- Boeing B-52B Stratofortress
- Boeing B-47E Stratojet

The Crawling Eye
- English Electric Canberra. Markings are pretty clear in the footage.

Creature with the Atom Brain
- Lockheed F-94 Starfire
- Douglas DC-6 & Douglas DC-3
- Lockheed A-29 Hudson
- Hiller UH-12