Section 908
Airtow Hook
Page Date: 20. April 2002
908 - 7
Pilot´s Operating Handbook
EXTRA 300L
CLIMBRATE
Conditions:
Power: 2500 Rpm and full throttle, mixture rich,
Speed of the aircraft tow: 76 KIAS = 140 Km/h,
Weight of the towing aircraft: m = 820 Kg (1808 lb), (1 Pilot = 86 kg, Acro & Center Tank
full 38 L, Wingtank 30 L)
Tow force: glider with m = 350 kg (772 lbs)
PA
0°C (32°F) OAT
10°C (50°F)
20°C (68°F)
30°C (86°F)
ft (m)
ft/min
m/s
ft/min
m/s
ft/min
m/s
ft/min
m/s
• _ _
SL
1610
8.2
1540
7.8
1480
7.5
1410
7.2
1000 (305)
1540
7.8
1475
7.5
1410
7.2
1345
6.8
2000 (610)
1475
7.5
1400
7.1
1340
6.8
1275
6.5
3000 (914)
1400
7.1
1335
6.8
1270
6.4
1210
6.1
4000 (1219)
1330
6.8
1265
6.4
1200
6.1
1140
5.8
5000 (1524)
1260
6.4
1195
6.1
1130
5.7
1070
5.4
6000 (1829)
1190
6.0
1130
5.7
1065
5.4
1000
5.1
7000 (2134)
1120
5.7
1060
5.4
995
5.1
935
4.7
8000 (2438)
1050
5.3
990
5.0
925
4.7
865
4.4
Tow force: glider with m = 600 kg (1323 lbs)
PA
0°C (32°F) OAT
10°C (50°F)
20°C (68°F)
30°C (86°F)
ft (m)
ft/min
m/s
ft/min
m/s
ft/min
m/s
ft/min
m/s
___
SL
1280
6.5
1210
6.1
1150
5.8
1080
5.5
1000 (305)
1210
6.1
1145
5.8
1080
5.5
1015
5.2
2000 (610)
1140
5.8
1080
5.5
1010
5.1
950
4.8
3000 (914)
1080
5.5
1005
5.1
940
4.8
880
4.5
4000 (1219)
1005
5.1
935
4.7
870
4.4
810
4.1
5000 (1524)
935
4.7
870
4.4
800
4.1
740
3.8
6000 (1829)
865
4.4
800
4.1
735
3.7
675
3.4
7000 (2134)
800
4.1
730
3.7
670
3.4
605
3.1
8000 (2438)
730
3.7
670
3.4
600
3.0
545
2.8
Tow force: glider with m = 765 kg (1687 lbs)
PA
0°C (32°F) OAT
10°C (50°F)
20°C (68°F)
30°C (86°F)
ft (m)
ft/min
m/s
ft/min
m/s
ft/min
m/s
ft/min
m/s
___
SL
920
4.7
850
4.3
785
4.0
725
3.7
1000 (305)
850
4.3
780
4.0
720
3.7
655
3.3
2000 (610)
780
4.0
715
3.6
650
3.3
585
3.0
3000 (914)
710
3.6
645
3.3
580
2.9
515
2.6
4000 (1219)
645
3.3
575
2.9
510
2.6
450
2.3
5000 (1524)
575
2.9
505
2.6
445
2.3
380
1.9
6000 (1829)
505
2.6
440
2.2
375
1.9
310
1.6
7000 (2134)
435
2.2
370
1.9
305
1.5
240
1.2
8000 (2438)
365
1.9
300
1.5
235
1.2
180
0.9
_
Page Date: 16. March 2009
Summary of Contents for 300L
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