Diamond DA-40 headroom

My recollection was that I saw cruise speeds in the mid to high 130s
but not as high as 140kts (If I average my upwind & downwind
performance). I wasn't really pushing it though with a high speed
cruise, since I wasn't going far. On a different topic, does anyone
know what Diamond changed in the DA40XL to achieve the upgraded
performance numbers? I believe they are claiming a cruise of 158kts on
the XL. I'm assuming this required a 200hp engine, a different prop, or
something significant. The basic plane is pretty clean aerodynamically
so there doesn't seem to be significant potential in cleaning it up to
get it to go faster.


On Dec 31, 12:24 pm, "BT" wrote:
Was that 135IAS? last I flew a DA-40-180, we had 145KTAS at 10,500MSL
BT

wrote:
....On a different topic, does anyone
know what Diamond changed in the DA40XL to achieve the upgraded
performance numbers? I believe they are claiming a cruise of 158kts on
the XL. I'm assuming this required a 200hp engine, a different prop, or
something significant. The basic plane is pretty clean aerodynamically
so there doesn't seem to be significant potential in cleaning it up to
get it to go faster.


New wingtips (winglets), new 3-bladed scimitar prop, powerflow exhaust.
Same engine.

Steve

Thanks, sounds like they pulled some impressive speed improvements out
of those modifications. Is Diamond planning on bringing the DA40tdi
version to the US anytime soon? I know they had delays in the DA42 with
the diesels, but those are flying in the US now and there are quite a
few of the DA40tdi flying in Europe. I believe they were working on
ensuring service centers were in place before selling too many diesels
in the US, but those plans were started quite a while ago. Does anyone
know if there is a timetable on the DA40tdi?

On Dec 31, 8:13 pm, "Steve C" wrote:
New wingtips (winglets), new 3-bladed scimitar prop, powerflow exhaust.
Same engine.

Steve

Steve C wrote:
wrote:
...On a different topic, does anyone
know what Diamond changed in the DA40XL to achieve the upgraded
performance numbers? I believe they are claiming a cruise of 158kts on
the XL. I'm assuming this required a 200hp engine, a different prop, or
something significant. The basic plane is pretty clean aerodynamically
so there doesn't seem to be significant potential in cleaning it up to
get it to go faster.


New wingtips (winglets), new 3-bladed scimitar prop, powerflow exhaust.
Same engine.

Steve

It will be nice if the powerflow exhaust can be available in existing
DA models,
as a factory installed option. I would like to avoid rerouting the
pipes that my
life will depend on in a 3rd party shop.