Mailing List flyrotary@lancaironline.net Message #62767
From: steve Izett <flyrotary@lancaironline.net>
Subject: Re: [FlyRotary] Re: [Non-DoD Source] [FlyRotary] Update
Date: Fri, 26 Aug 2016 23:18:43 +0800
To: Rotary motors in aircraft <flyrotary@lancaironline.net>
Hi Luis
Yes, with you.
I tried this some time back, but will try it again for high power static testing.
I just plugged the gear hole with towels. I’m sure we could do a better job.

Thanks
Steve
> On 26 Aug 2016, at 10:18 PM, Luciano, Luis I CIV NUWC NWPT <flyrotary@lancaironline.net> wrote:
>
> Steve - if you are interested in testing cooling performance with the hole plugged up, can you use aluminum foil duct tape to temporarily cover that hole, then do your same test?
>
> R/
> Luis Luciano
>
> -----Original Message-----
> From: Rotary motors in aircraft [mailto:flyrotary@lancaironline.net]
> Sent: Friday, August 26, 2016 9:20 AM
> To: Rotary motors in aircraft
> Subject: [Non-DoD Source] [FlyRotary] Update
>
> Hi Guys
> Got back to the hangar today and thought some of you might like an update.
>
> After fixing some small leaks in the cooling system we proceeded to test the cooling system.
> OAT was only about 20C or 68F.  Engine coolant was already approx 140F after some testing with the cowls off.
>
> Put the cowls back on for a stationary test - Course pitch and 2200RPM she took over 25mins for the H2O to get to 195F and Oil about 8F cooler when I shut it down.
> Having some pitch on the Prop makes a big difference with the cooling.
>
> I have no base comparison as I don’t know how other peoples setups compare but I came away a little optimistic that she might actually cool in the air.
> She is retractable so presently on the ground she has one rather large hole in the bottom of the cowl.
> What happens when that hole gets plugged is unknown, I’m hoping pressure in the cowl drops and cooling increases, but we’ll have to wait and see.
>
> Engine ran silky smooth on B, less so on A, so Ive got some investigating to do.
>
> Hoping next week to do a fine dynamic balance of the prop and maybe taxi her and see what that does to the cooling.
> I’ve attached a frame from a movie I took today. (The prop looks pretty bent!)
>
> Cheers
> Steve Izett
> Glasair Super II RG EC2 EM3 RD1-C
> --
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