From: "steve Izett" <flyrotary@lancaironline.net>
Received-SPF: pass
 receiver=logan.com; client-ip=209.85.220.46; envelope-from=steveize@gmail.com
Content-Type: text/plain; charset=utf-8
Content-Transfer-Encoding: quoted-printable
Subject: Update on Glasair build
Message-Id: <8ACFCF70-D9ED-4352-8816-A6F68766F267@gmail.com>
Date: Sat, 3 Sep 2016 16:42:17 +0800
To: Rotary motors in aircraft <flyrotary@lancaironline.net>
Mime-Version: 1.0 (Mac OS X Mail 9.3 \(3124\))

Hi Guys

Did some further engine runs and final dynamic balance of the prop =
yesterday.
With a little fiddling around we had the prop balanced to below 0.9ips =
so I=E2=80=99m happy with that.

Did some power runs, the engine feels very smooth and predictable now =
though still haven=E2=80=99t done any mode 1 / 9 tuning of the EC2.
It seems to be pretty close throughout the rev range with a few =
corrections of the manual mixture. May try using the autotune feature.

The OAT was only about 17C - 63F.
Ran her up and found the H2O temp stabalised at ~200F and the Oil at =
~190. This was at at around 2000RPM (700 Prop RPM)
If I ran it up full noise for 20 seconds temps would rise but then =
settle back to those numbers a few minutes latter.
Not sure how that will translate when the OAT is 36C - 97F! Will it =
stabilise at a higher temp or runaway.

On the cooling side, since I can=E2=80=99t safely retract the gear while =
doing some power runs, I=E2=80=99m planning to seal off the=20
retractable nose gear door hole with cardboard and tape and see how this =
effects the cooling.

We were going to taxi it for the first time yesterday as e=E2=80=99ve =
heard from others that a little forward movement makes a difference to =
cooling=20
airflow, but found the right brake was spongy so this will have to wait. =
If we can fix the brakes, I hope to have it moving under its own power=20=

for the first time next week.

Cheers

Steve Izett
Glasair Super II RG
Renesis 4 port RD1-C EC2 EM3