@boscomantico wrote:
What I still don’t understand is how a 2/2.3 ton aircraft with 2×180 hp can be a good performer in the takeoff and climb department. I mean, a Piper Seminole also has 2×180 hp and weighs 1.7 tons at MTOW and is not an exceptional performer… a Seneca, which has the same MTOW has 2×220hp….
Isn’t the wingspan (15m !) the reason here ? 
Edit: we would need to know what are comparative Vr for DA62 and PA34.
Edit2: it seems that Vr is 78kt for DA62, and 71kt for PA-34
Reaching higher speed with less power within a shorter distance… I join bosco here.
with 7 onboard what´s is the range?
Inbrunodias wrote:
with 7 onboard what´s is the range?
Max takeoff weight = 2300 kg
Empty weight = ~ 1680 kg
Useful load = 620 kg
7 standard adults ~ 78 kg = 546 kg
So that’s 74 kg of fuel, Jet A1 weight .8 kg / litre so you can carry 92.5 litres
That’s just over an hour with reserves.
In reality 7 adults would be fairly uncomfortable, they probably wouldn’t enjoy it much!
I think 5 adults is comfortable for longer trips, you’d then have close to full tanks and almost 5 hours endurance.
Real world, full tanks (326l) would allow 4 adults, bags and TKS. It then depends upon how quickly you want to burn fuel.
We tend to operate at 73-75% when looking for a sensible range/time which gives us 6hrs endurance and, allowing for 45 minutes reserves, a useable still air range of 850nm (10000ft, 170 KTAS). If you bring the power back to 42% (10000ft,138KTAS) you’ll get further (about 1100nm) but that will take you 8hrs. Push the levers forward to 95% (Max Continuous Power) and you’re now at 185KTAS but reduced airborne time to 4:45, which equates to 740nm before reserves.
Jump up to 15000ft with oxygen and you can add about 10kts to all those speeds giving you still air ranges of 1080nm@75%,1180nm@42% and 925nm@95%.
Nice video of a DA-62 basking in the sun over Colorado, which made me think of Dave Phillips. RIP.
Beautiful sights, sad reminder of DP. He mentions the video was shot between Breckenridge and Freemont pass, the end (populated area) looks to me like Golden, CO with lights sprawling towards Denver.
