Roladen-Schneider LS-4a Sailplane
The "4" or "Three Whiskey" as it is also known, is CSA's only single seat sailplane. It is a fairly high performance sailplane and is a joy to fly both locally and cross-country. Three Whiskey is CSA's primary cross-country sailplane and many members fly it in pursuit of SSA badges. The LS-4a is a very docile, and comfortable sailplne to fly for long periods and many members have achieved their 5-hour Silver badge duration flight in this sailplane. LS-4s are widely used in European clubs because of it's flight characteristics and comfortable cockpit which make it suitable for even lower-time club members.
| CSA LS-4a Information | |
|---|---|
| CSA Crew Chief: | David Houlton |
| Squawks | View/Add |
| Registration: | N30SZ |
| Contest ID: | 3W |
| Serial No.: | 4473 |
| Documentation: | CSA LS-4a Uesr Guide |
| Flight Manual | |
| Type Certificate Data Sheet | |
| Maintenance Manual | |
| Checklist | |
| Review Test | |
| EDS Oxygen Delivery Manual | |
| Dittel Radio | |
| Zander SR940 Manual | |
| Zander SR940 Manual Update | |
| Zander GP940 Flight Recorder Manual | |
| Zander PC Software | |
The following data is from SailplaneDirectory.com and represents optimum, ex. factory specifications with weights adjusted per the CSA Sailplane Data page.
| General Details | |
|---|---|
| Manufacturer: | Roladen-Schneider |
| Country Of Origin: | Germany |
| Designer: | Wolf Lemke |
| No. of Seats: | 1 |
| No. Built: | ~600 |
| Design | |
| Aspect ratio: | 21.4 |
| Airfoil: | Wortman Mod |
| Structure: | GFRP foam sandwich |
| Performance | |
| L/D Max: | 40.2 @ 102 kph / 55 kt / 63 mph |
| MinSink: | 0.60 m/s / 1.97 fps / 1.17 kt |
| Specifications | |
| Span | Area | Empty Weight | Payload | Gross Weight | Wing Load | Water Ballast | |||||||
| m | ft | sq.m | sq.ft | kg | lb. | kg | lb. | kg | lb. | kg /sq.m |
lb. /sq.ft |
kg | lb. |
| 15 | 49.2 | 10.5 | 113 | 270 | 595 | 202 | 445 | 472 | 1040 | 44.9 | 9.21 | 140 | 308 |
Updated 05/13/2024