From: "Bobby J. Hughes" <flyrotary@lancaironline.net>
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thread-topic: [FlyRotary] taxi testing at home video
thread-index: AdMau8ZlBh+lDASeSh2bts+/hemIfA==
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Subject: Re: [FlyRotary] taxi testing at home video
Message-ID: <00EDF6FC-DD58-4E2A-811C-7BA7A493F957@qnsi.net>
Date: Mon, 21 Aug 2017 15:26:30 -0500
References: <list-10033082@logan.com>
To: "Rotary motors in aircraft" <flyrotary@lancaironline.net>
In-Reply-To: <list-10033082@logan.com>


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Good looking airplane Todd. Sounds good for not being tuned.=20

Bobby=20

Sent from my iPhone

> On Aug 21, 2017, at 2:24 PM, Todd Bartrim <flyrotary@lancaironline.net> wr=
ote:
>=20
> I made a video yesterday of a little constricted taxi testing in my drivew=
ay. I thought I'd share for fun and maybe a little inspiration for those tha=
t are still building.=20
>   The EC2 has been reset to original programming (from Tracy's RV4 Otter, I=
 believe) with no tuning whatsoever, so this is how it started and ran under=
 those settings. It's pretty rich so didn't idle well so that's why I'm runn=
ing a higher rpm at the start. The only adjustments made in this video is wi=
th the mixture control.=20
>   Towards the end of the video the idle is pretty rough until I got it smo=
othed out by leaning the mixture. I'm guessing the knocking that is heard du=
ring this rough running is from the PSRU not being happy with the torque rev=
ersals. This noise is not really all that noticeable from inside the cockpit=
 but from the camera it is quite obvious and does not sound healthy at all.=20=

>    Knowing this, I will get this tuned today, so as to avoid any further r=
unning in this condition so to eliminate this stress on the psru.
>=20
> https://goo.gl/photos/r4T5DaMX11FbBd6g8
>=20
> Comments welcome!
>=20
> Todd Bartrim
>=20
> Ps.   Forest fire smoke is quite heavy here today but on the days the nort=
h wind clears it away, I have the Lockheed Electra waterbombers flying direc=
tly over my house when taking off heavily loaded. There are currently 4 of t=
hem based here and depending on where they are going and how long the turn-a=
round time is, there is one as often as every 5-10 minutes. While this incre=
ased activity is preventing me from moving my plane up to the airport where I=
 have more room to taxi test, it has also provided me with some entertainmen=
t. When loaded heavy, those 4 big props beat the air pretty loudly.=20
> A couple of pics here. The fire retardant stains are quite visible on the b=
elly.
> https://goo.gl/photos/6QP4PYr4sXXkTh6S7
> https://goo.gl/photos/bcDMY3Kcsc1yZzuc6

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