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From: "Ed Anderson" <eanderson@carolina.rr.com>
To: "Rotary motors in aircraft" <flyrotary@lancaironline.net>
References: <list-5068559@logan.com>
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Subject: Re: [FlyRotary] Re: Back to Phase 1 testing
Date: Sat, 30 Jul 2011 09:47:10 -0400
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The old nose is pretty sensitive to some things - paths could have been out 
from around the spinner/prop shaft, cowling seams, sheet metal seams, holes 
in firewall, etc.

 Distinguishing between fiberglass and electrical smells helps the pucker 
factor a bit.  I recall when I popped my canopy after my departure off the 
runway with brake fluid fire - that I immediately knew my wheel pant was on 
fire due to the resin smell.  Even before my favorite nephew popped his head 
in to tell me " Uncle Ed... you're on FIRE!"

Ed

--------------------------------------------------
From: "Tracy" <rwstracy@gmail.com>
Sent: Saturday, July 30, 2011 8:32 AM
To: "Rotary motors in aircraft" <flyrotary@lancaironline.net>
Subject: [FlyRotary] Re: Back to Phase 1 testing

> Yeah, it was kind of a yawner.  Except for the burning smell.  Wasn't sure 
> if it was fiberglass or electrical for a minute there.   Haven't removed 
> the dead coils yet but I'm pretty sure they are the culprits.   Still 
> haven't found how the smell migrated to the cockpit though.
>
> I think the rotor 3 went (actually rotor 1 but I labeled my EGTs front to 
> back) because they were at the end of the cooling plenum farthest from the 
> blast tube.  This was also the hottest day that I have done an extended 
> climb at high power.  I have a temperature probe near those two coils and 
> I noticed the ambient around them got as high as 170 F.  Need to do some 
> testing to determine if that blast tube is furnishing enough air.  Oil and 
> water temps stayed below  200 the whole time.  They dropped into the 125F 
> range during the descent to landing.
>
> Tracy
>
>
> Sent from my iPad
>
> On Jul 29, 2011, at 5:22 PM, "Ed Anderson" <eanderson@carolina.rr.com> 
> wrote:
>
>> Gee, two rotors to come home on doesn't provide much excitement, Tracy.
>>
>> Sort of reminds me way back in the old days of using the Rx-7 ignition 
>> coils and ballast resistors blowing on them.  For some reason seems like 
>> that only happened to you and me.
>>
>> We are all awaiting some performance numbers for that RV8-3R, so next 
>> time take your bottle and give those Ls1 coils a real try out.
>>
>> Ed
>>
>> --------------------------------------------------
>> From: "Tracy" <rwstracy@gmail.com>
>> Sent: Friday, July 29, 2011 2:13 PM
>> To: "Rotary motors in aircraft" <flyrotary@lancaironline.net>
>> Subject: [FlyRotary] Re: Back to Phase 1 testing
>>
>>> Was finally getting around to doing hot weather cooling and altitude 
>>> performance testing in the RV-8 yesterday.   Cooling was good during a 
>>> high power climb to 14500 ft where I leveled out ( I had forgotten to 
>>> put the Ox bottle in the plane).   Throttled up to WOT to see where the 
>>> speed topped out at but.   After less than a minute I felt some engine 
>>> roughness and noticed rotor 3 EGT went above alarm threshold so I 
>>> throttled back to low power.   #3 EGT then went low off scale and I 
>>> could tell that the engine was only running on 2 rotors.   I then 
>>> smelled a faint electrical burning smell that lasted about 2 minutes. 
>>> Engine was surprisingly smooth for having a dead rotor and still had 
>>> more than enough power for cruise flight but obviously it was time to 
>>> get back on the ground and find out what went wrong.   did all the usual 
>>> diagnostics on the long glide down with no joy.
>>>
>>> Made normal landing, poped off the cowl and coil diagnostics test 
>>> revealed that both coils on rotor 3 were dead.   I had done the coil 
>>> disable tests prior to takeoff so I know they were both good then.  I'm 
>>> using RX-8 coils and there have been too many failures for me to feel 
>>> good about them any longer.   I ordered a set of LS-1s to replace them.
>>>
>>> Tracy
>>> --
>>> Homepage:  http://www.flyrotary.com/
>>> Archive and UnSub: 
>>> http://mail.lancaironline.net:81/lists/flyrotary/List.html
>>
>> --
>> Homepage:  http://www.flyrotary.com/
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>
> --
> Homepage:  http://www.flyrotary.com/
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>