Models
| Model | Type | Registered | Valid | Built |
|---|---|---|---|---|
| G 103 TWIN II | Glider | 30 | 30 | 1980-1984 |
| G-103A TWIN II ACRO | Glider | 26 | 26 | 1980-1986 |
| G-109B | Glider | 25 | 25 | 1983-1985 |
| G103C TWIN III ACRO | Glider | 7 | 7 | 1989-1992 |
| G103C TWIN III SL | Glider | 4 | 4 | 1992-1993 |
| G103 TWIN ASTIR | Glider | 4 | 4 | 1977-1979 |
| GROB G115C | Fixed wing single engine | 3 | 3 | 1994-1995 |
Grob aircraft in the FAA registry
The Federal Aviation Administration (FAA) lists registered aircraft under the manufacturer name "BURKHART GROB." As of October 16, 2026, the FAA registry contains 99 valid registrations for this manufacturer. These registrations represent seven distinct models. The majority of these aircraft are gliders, with 96 units recorded. The remaining three are fixed-wing single-engine aircraft.
Most of the registered Grob aircraft were built between 1977 and 1995. Half of these aircraft were built in 1984 or earlier. The fleet consists of 88 aircraft in the standard airworthiness class and three in the experimental class. Reciprocating engines power 28 of the registered aircraft.
The registered Grob aircraft are distributed across several states. California holds the highest number of registrations with 16 aircraft. Pennsylvania follows with 12 registrations, and New Mexico has 7.
The most numerous registered models are the G 103 TWIN II, the G-103A TWIN II ACRO, and the G109B. There are 30 G 103 TWIN II aircraft on record, built between 1980 and 1984. The G-103A TWIN II ACRO has 26 registrations, with production spanning from 1980 to 1986. The G109B model accounts for 25 registrations, built between 1983 and 1985. The G103C TWIN III ACRO has 7 registrations, built from 1989 to 1992. The G103C TWIN III SL and G103 TWIN ASTIR each have 4 registrations.
Type certificate data sheets (TCDS) provide the technical specifications for these models. The TCDS G39EU, held by Fiberglas-Technik Rudolf Lindner GmbH & Co. KG, covers the G 103 TWIN II, G-103A TWIN II ACRO, and G103C TWIN III ACRO. The TCDS G57EU, also held by Fiberglas-Technik Rudolf Lindner GmbH & Co. KG, covers the G103C TWIN III SL.
Grob Aircraft SE, formerly Grob Aerospace, is a German aircraft manufacturer specializing in gliders and general aviation. Since its foundation in 1971, the company has produced a range of aircraft. Initially focusing on gliders, it expanded into other markets. The company has delivered over 4,500 airframes that have cumulatively flown over seven million hours.
Figures from the FAA registry file as of Oct 16, 2026. Company background: Wikipedia, Grob Aircraft.