Grob G103 Twin Astir: Difference between revisions
reverted unsourced changes, it is not a four seater! |
|||
| Line 36: | Line 36: | ||
|met or eng?=<!-- eng for US/UK aircraft, met for all others. You MUST include one or the other here, or no specifications will show -->met |
|met or eng?=<!-- eng for US/UK aircraft, met for all others. You MUST include one or the other here, or no specifications will show -->met |
||
|crew= |
|crew=one |
||
|capacity= |
|capacity=one passenger |
||
|length m=8. |
|length m=8.1 |
||
|length ft=26 |
|length ft=26 |
||
|length in=7 |
|length in=7 |
||
|span m=17.5 |
|span m=17.5 |
||
|span ft=57 |
|span ft=57 |
||
|span in=5 |
|span in=5 |
||
|swept m=<!-- swing-wings --> |
|swept m=<!-- swing-wings --> |
||
| Line 57: | Line 57: | ||
|width ft=<!-- if applicable --> |
|width ft=<!-- if applicable --> |
||
|width in=<!-- if applicable --> |
|width in=<!-- if applicable --> |
||
|height m=1. |
|height m=1.60 |
||
|height ft=5 |
|height ft=5 |
||
|height in=3 |
|height in=3 |
||
|wing area sqm=17. |
|wing area sqm=17.9 |
||
|wing area sqft= |
|wing area sqft=193 |
||
|swept area sqm=<!-- swing-wings --> |
|swept area sqm=<!-- swing-wings --> |
||
|swept area sqft=<!-- swing-wings --> |
|swept area sqft=<!-- swing-wings --> |
||
| Line 69: | Line 69: | ||
|volume ft3=<!-- lighter-than-air --> |
|volume ft3=<!-- lighter-than-air --> |
||
|aspect ratio=<!-- sailplanes -->17.1 |
|aspect ratio=<!-- sailplanes -->17.1 |
||
|empty weight kg= |
|empty weight kg=390 |
||
|empty weight lb= |
|empty weight lb=860 |
||
|gross weight kg= |
|gross weight kg=610 |
||
|gross weight lb=1, |
|gross weight lb=1,345 |
||
|lift kg=<!-- lighter-than-air --> |
|lift kg=<!-- lighter-than-air --> |
||
|lift lb=<!-- lighter-than-air --> |
|lift lb=<!-- lighter-than-air --> |
||
| Line 94: | Line 94: | ||
|max speed kmh=250 |
|max speed kmh=250 |
||
|max speed mph= |
|max speed mph=160 |
||
|max speed mach=<!-- supersonic aircraft --> |
|max speed mach=<!-- supersonic aircraft --> |
||
|cruise speed kmh=<!-- if max speed unknown --> |
|cruise speed kmh=<!-- if max speed unknown --> |
||
Revision as of 01:39, 3 July 2014
 | This article includes a list of references, related reading, or external links, but its sources remain unclear because it lacks inline citations. (December 2012) |
| G 103 Twin Astir | |
|---|---|
| |
| A G 103 Twin Astir landing | |
| Role | Sailplane |
| National origin | Germany |
| Manufacturer | Grob Aircraft |
| First flight | 31 December Template:Avyear |
| Number built | 291 |
The Grob G 103 Twin Astir was a two-seat sailplane developed in Germany in the 1970s by Grob Aircraft AGas a counterpart to the single-seat G 102 Astir then in production. Construction throughout was similar, although to preserve the balance of the design, the wings were given a slight forward sweep. While many two-seat derivatives of single-seat sailplanes have fixed undercarriage, due to the added space restrictions created by the second seat, Grob devised a novel retraction system for the Twin Astir. The single wheel was designed to rotate 90° sideways before retracting "flat" under the rear seat, resulting in a rather unusual seating position. This was only incorporated in early examples, later on, the wheel was fixed. Options offered to customers included whether the front seat should be equipped with flight instruments, and whether water ballast capacity should be installed.
Production continued until around 1980, when it was replaced in production by the Twin II, a new and not directly related design originally designated G 118 but later redesignated the G 103a.
Specifications
General characteristics
- Crew: one
- Capacity: one passenger
- Aspect ratio: 17.1
Performance
- Maximum glide ratio: 38
See also
References
- Taylor, Michael J. H. (1989). Jane's Encyclopedia of Aviation. London: Studio Editions. p. 441.
- Hardy, Michael (1982). Gliders and Sailplanes of the World. Shepperton: Ian Allan. p. 49.
- Coates, Andrew (1978). Jane's World Sailplanes and Motor Gliders. London: MacDonald and Jane's. p. 61.