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Flight manual DG-800B
2.7
Mass (weight)
Maximum Take-Off mass:
18 m wing span
525 kg,
1157 lbs
15 m wing span
480 kg,
1058 lbs
525 kg,
1157 lbs
Max. mass without waterballast:
WNLP
=
max. mass of all non lifting parts
see below
Wwings
=
actual mass of the wings
Maximum landing mass: 525 kg, 1157 lbs all wing spans
Caution: It is recommended to dump the waterballast before landing on
airfields. Dump the ballast before an outlanding in any case.
Maximum mass of all
non lifting parts
=
320 kg
=
338kg
Maximum mass in baggage
compartment
=
15 kg
Caution: Heavy pieces of baggage must be secured to the baggage
compartment floor.
The max. mass secured on one half of the floor (left and right of fuselage
centre line) should not exceed 7.5 kg (16.5 lbs).
Maximum waterballast
in the wings
=
100 kg
Warning: Follow the loading procedures see sect. 6.
The respective take off mass is not to be exceeded.
2.8
Center of gravity
Center of gravity range in flight is
238 mm (9.37 in.) up to 383 mm (15.08 in.) behind datum.
datum
= wing leading edge at the rootrib
reference line
= aft fuselage centre line horizontal
C.G. diagrams and loading chart see sect.6.
Issued: February2001
TN 873/23
self launching
tow launching
W=WNLP + Wwings
(705 lbs) up to serial no 8-190
(745 lbs.) from serial no. 8-191 on
( 33 lbs)
(220 lbs)
App. 2.7
Flight manual DG-800B
2.9
Approved manoeuvres
This sailplane is certified for normal gliding in the "Utility" category.
Simple aerobatics are approved but only without waterballast and with the
engine retracted.
The following aerobatic manoeuvres are approved see sect. 4.5.12:
Manoeuvre
recommended
Spins
Inside Loop
Stall Turn
Chandelle (climbing)
2.10 Manoeuvering load factors
The following load factors must not be exceeded:
Airbrakes retracted:
at manoeuvering speed VA
+ 5.3
at max. speed
VNE + 4.0
Airbrakes extended:
at max. speed
VNE + 3.5
Wingflaps in landing setting:
at max. speed
VFE =
150 km/h
2.11 Flight crew
max. load in the seat
110 kg
min. load in the seat
see placard in cockpit and weighing report
page 6.5
With these loads, the C.G. range given under 2.8 will be kept in the limits
if the empty weight C.G. is in its limits.
see loading chart in sect. 6.
Caution: With low pilot weights lead ballast must be added to the seat.
Ballast put on the seat (lead ballast cushion) must be fastened at
the safety belt anchorage points.
Installation for removable trim ballast see sect. 7.16.1.
Note:
For Australia the lower limit for the min. load in the cockpit
should not exceed 66 kg (146 lbs). A provision for removable
ballast see sect. 7.16 is mandatory.
2.12 Kinds of operation
A)
With waterballast
Flights according to VFR (daylight)
Selflaunching
Aerotow
Winch- and auto-launching
Issued: November 1997
entry speed IAS
km/h
kts
/
/
180
97
180
97
180
97
-2.65
-1.5
+4.0
242 lbs
App. 2.8
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