Paul, I have data comparing performance of SR 3000W 1625
with SR 2000 1625 on a 914 and clear advantage for latter.
Am skiing at present but when home will send you the full
analysis. The LAA will I believe not accept 1650, and I
suspect that Woodcomp would advise the 3 blader (but ask
them) for a 912 S as they did for my 914, otherwise at any
height you risk running out of propeller to take the
power.
Regards, David Joyce, G- XSDJ
"Europaul383" <europaul383@hotmail.com> wrote:
><europaul383@hotmail.com>
>
> Thanks to both (no pun intended, Christoph!),
>
> Christoph: I have just found our LAA limits (based on
>EASA CS-VLA) and it might be tricky getting 1650
>approved, but now the topic has opened up to 2 vs. 3
>blades and W vs. normal.
>
>Frans: do you have any data you may have recorded during
>testing/touring?
>
> Specifically, airspeed & RPM (presumably 5,500?) mapped
>to climb rates; and max speed at different weights.
>
> A bit of a long shot, but have you measured any data
>while normally-aspirated (turbo off)? If you need an
>excuse to go flying, maybe you might fancy trying some
>normally-aspirated climbs and cruises? [Wink]
>
> Thanks in advance,
>
> Paul
> XS Mono 912S
>
>
>
>
> Read this topic online here:
>
> http://forums.matronics.com/viewtopic.php?p=393776#393776
>
>
>
>
>
>
>
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