I just got a Sig Sundancer Giant scale. The Specs are

Specifications:
Wing Span: 71.5 in 1816 mm
Wing Area: 1688 in² 108.90 dm²
Fuselage Length: 66 in 1676 mm
Flying Weight 17 - 18 lbs 7710 - 8165 g
Engine Required: 3.2 to 4.2 in³ (52 - 68 cm³) Gas
Radio Required: 4 channel, 8 servos

Thin the DL-50 would pull it OK ?

I am a total newbie to gassers.... but have heard many good reviews on this motor !