Additional Information; Demonstrated Crosswind Performance; Gliding Performance - DG Flugzeugbau DG-1000 Flight Manual

5.3 Additional Information

5.3.1

Demonstrated crosswind performance

The demonstrated crosswind velocity is 15 km/h (8 kts) according to the
airworthiness requirements.
5.3.2

Gliding performance

1 kts= 1 km/h / 1.852, 1 m/s= 197 ft/min.= 1.94 kts, 1 kg/m²= 0.2048 lbs/ft²
Performance data with 20 m span (S = 17,53 m²)
wing loading
minimum sink
at
best glide ratio
at
Performance data with 18 m span (S = 16,72 m²)
wing loading
minimum sink
at
best glide ratio
at
With winglets on the 18 m wing tips (optional) the best glide ratio is increased
by 0.5 points.
With 17,2 m span (S = 16,30 m²) the best glide ratio decreases by 1.5 glide
points, compared to 18 m span without winglets.
A variation in speed by ± 10 km/h (5 kts.) from the above will decrease the best
glide angle by 0.5 glide points and increase the min. sink rate by 1 cm/sec. (2
ft/min).
The polar curves can be seen on the next page.
For optimum performance, the aircraft should be flown with a C.G. towards the
rear of the allowable range. This especially improves thermalling performance.
However the aircraft will be more pitch sensitive.
The wing fuselage joint, wing parting and the tailplane fin joint should be taped
up and the aircraft thoroughly cleaned to obtain maximum performance.
The polars apply to a "clean" aircraft.
With dirty wings or flight in rain, the performance drops accordingly.
Issued: February 2016
Flight manual DG-1000T
kg/m²
m/s
V [km/h]
/
V [km/h]
kg/m²
m/s
V [km/h]
/
V [km/h]
TN1000/25
28 35 42
0,51 0,56 0,62
79 88 98
45,9 46,3 46,6
93 104 120
30 36 45
0,60 0,65 0,72
84 90 100
41,5 41,7 42
100 110 123
EASA app. 5.5