VJ
The Diamond Twinstar which I tested is a far better aircraft than its underpowered brother it replaced with the new AG300 diesels.
See Below
VJThe 336hp make for impressive acceleration, which unsurprisingly is noticeably increased in comparison with the basic DA42. With the engines delivering 100 %Take Off power, the nose is raised to 12° and it climbs at 90 KCAS burning 9.4 US gal per hour per engine with the variometer oscillating between 1,100 and 1,300 fpm. That is truly impressive. Five minutes after Take Off we are retarding to max continious power of 92% and still get a climb rate of approximately 1,100fpm. The fuel flow meter is indicating 8.5 USgal/h now.
Levelling off at 12,000 ft and the power indication still at 92% we are accelerating to 145 KCAS which leads to a true airspeed of 183 kts. The service ceiling is 18,000 ft and it can maintain 14,000 ft with one engine out. We are engaging the autopilot and enjoying the luxury of the GFC 700 with its yaw damping system. Bringing the power back to a more normal 75 % power, the engines are burning 6.8 US gal per engine and delivering 175 KTAS, which is magnificient for just 51 l of Jet A1 per hour
If your looking for a low running cost twin aircraft ???