This is the RealFlight Add-Ons CD Volume 4 from Great Planes.
**Not compatible with RealFlight G4.**

FEATURES: Add-Ons Volume 4 is compatible with all other versions of RealFlight except the RealFlight NexSTAR edition.
However, special effects such as high-resolution graphics and moving control surfaces will only be available when Add-Ons Volume 4 is used with RealFlight Generation 2 software.
14 New Airplanes:
Albatros, Harrier, Electro Streak, Ryan STA, Edge 540, 1/3 Pitts Special, P-40, Special Select, R/C Nobler, Tutor, Stuka, RV4, T-Craft 20
3 New Helicopters:
NOTE: Helicopter option will only be available when Add-Ons Volume 4 is used with RealFlight Deluxe and RealFlight G2 software. Kyosho Caliber 30, Kyosho Concept EP, Huey 4 New Flying Fields
Painted Canyon, Snow Park, Crescent Rock, Battle Ship
INCLUDES: One RealFlight Add-Ons Volume #4 CD Disc.
COMPUTER SYSTEM REQUIREMENTS:
All Add Ons volumes require that the RealFlight R/C simulator (Classic, Deluxe, or Generation 2 or 3) be installed first.
Operating System: Windows 95, 98 (First or Second Edition), Me, 2000, or XP
Local administrator access required for Windows Vista, XP and 2000
NOTE: Add Ons Volume 4 is not supported under Windows NT or the Macintosh platforms (this includes Windows emulators for the Mac)
Processor: Minimum processor speed of 300MHz with a STRONG RECOMMENDATION of 600MHz or faster for best performance Memory: 32MB RAM with STRONG RECOMMENDATION of 64MB RAM for best performance
Video Card: 3D accelerated video card with 8MB of dedicated video RAM with a STRONG RECOMMENDATION of 16MB of video RAM or more for best performance.
Storage: 40MB Hard drive space (RealFlight Classic/Deluxe) 300MB Hard drive space (RealFlight G2)