X-Junk-Score: 0 [] X-Cloudmark-Score: 0 [] X-Cloudmark-Analysis: v=2.3 cv=LuPsNUVc c=1 sm=1 tr=0 a=dZ999rAERPaN1ClzR8ro2w==:117 a=x7bEGLp0ZPQA:10 a=K7ySfSCCDxUA:10 a=sTwFKg_x9MkA:10 a=o1OHuDzbAAAA:8 a=Ia-xEzejAAAA:8 a=7g1VtSJxAAAA:8 a=Y5SgwCqpOTT0pUaNErMA:9 a=QEXdDO2ut3YA:10 a=Qa1je4BO31QA:10 a=gvSQh4r-fQ0A:10 a=FOi7l-NkSxRZmE-0unIA:9 a=KQbX5Tn0dwwMzo75:21 a=5YQ6H4ZxyGn-KoBYtt8s:22 a=Urk15JJjZg1Xo0ryW_k8:22 a=grOzbf7U_OpcSX4AJOnl:22 From: "Matt Boiteau mattboiteau@gmail.com" Received: from mail-ej1-f45.google.com ([209.85.218.45] verified) by logan.com (CommuniGate Pro SMTP 6.2.14) with ESMTPS id 263562 for flyrotary@lancaironline.net; Thu, 21 May 2020 16:28:37 -0400 Received-SPF: pass receiver=logan.com; client-ip=209.85.218.45; envelope-from=mattboiteau@gmail.com Received: by mail-ej1-f45.google.com with SMTP id j21so10463836ejy.1 for ; Thu, 21 May 2020 13:28:38 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=mime-version:references:in-reply-to:from:date:message-id:subject:to; bh=wba+zqB+FvEXd65C6aKxtR3Qh4wNK6E5kePGu4g2mK4=; b=KK7jSIkhI7RS6HNbkK4i077SrW0EaJsZbUtxMdx0bVHAlXHO6r6E+FbI/8VCIFpJNG 4wp/kq97ykfvatuoINNoG/AsEZn/iITRUbB7sEdTcoc3fNpd0ia2dVnLq3PaUL4v0LZA tdGDHRswPUGVCA4u1gCW1Dv1cnJQvrSxUu0c00ZKRAyROIDEvsGdViUK4zEW6GdN2Qy/ xLMpdDz/oow+0YGa1nsnpRr5GTfX1EeW9YjkTcSRb9jMhsKhxN5ZNaPvKt/08CohxdGC iDkfv35GMrDNDKV9FNiFhku9rsRwVcuQJVkZ8/zShXeRT0GaIlQG/4dVpn1oWCFAFsUG pG5A== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to; bh=wba+zqB+FvEXd65C6aKxtR3Qh4wNK6E5kePGu4g2mK4=; b=LuvCJJeNITA9xjEpNAFqj5nlNOzWrOEBXFn5qCLpADOn+p1jOKC0aGW4w3AT+0h4Wx ID6wEZrrJTCBjhf8Wfqk/FpbdpHmUk0ek9kFh9cH65WGMtIZbQs8j6M9gGMFvwpBhU93 T1CbAFwEZm51rdCIh7buKrwkkU++Rq4F/Dbt6/f8TNvLLO+kBL+vpnSGq5FgzSo1trvq QUt5W/XGMZqUYsev1pelufE2ybUS0Z/JASz6lzd60XkCMk3rSPqDI/p8jUSjeo+wZYQf l+7uppjOKVhIjEuAYTbBU2cweyq1aQSwR8f5d1IZJdk35z33I9IFRKseGw9t6O/CpHY1 e17Q== X-Gm-Message-State: AOAM533sUvpb1JZPvmJHD1M6PQcE41cspAR2H95JDggdJm5xz2El5FQB 5O+OXLXv9xCLlD3iJJ2/9BH44caGys51Zjl6ovv3ADOM X-Google-Smtp-Source: ABdhPJzqgeqlpjuQ0xdWtwylYC/6JPUhzsIQySRb0c+oQ9BRYhksZDrYLEc3u/co59WuXCcCCFuNNUg1FpHwe1lloHM= X-Received: by 2002:a17:906:55c4:: with SMTP id z4mr5530261ejp.332.1590092899748; Thu, 21 May 2020 13:28:19 -0700 (PDT) MIME-Version: 1.0 References: In-Reply-To: Date: Thu, 21 May 2020 16:28:07 -0400 Message-ID: Subject: Re: [FlyRotary] First engine run -- prop or not? To: Rotary motors in aircraft Content-Type: multipart/alternative; boundary="0000000000007311c505a62e5ad4" --0000000000007311c505a62e5ad4 Content-Type: text/plain; charset="UTF-8" I've put over 10hrs on the bench without a prop on. Kept the revs under 5000. No issues here, good for debugging and modifications on the fly. You have the psru on, fly wheel, water pump, alt, so a bit of a load anyways. There are some Mazda manuals on break in procedures in cars. Basically don't sit at one rpm for a long time. Everyone will give you their opinion on breaking procedures. Some say to start it up and drive it like you stole it, some say to baby it. - Matt Boiteau On Thu, May 21, 2020, 09:24 Finn Lassen finn.lassen@verizon.net < flyrotary@lancaironline.net> wrote: > 1) Without prop any vibration will be from engine and PSRU and can > inspect engine (leaks, etc.) with no fear of prop. > > 2) With prop less chance of over rev and some cooling air through rads > and oil cooler. > > What do you think? > > Finn > > > > -- > Homepage: http://www.flyrotary.com/ > Archive and UnSub: > http://mail.lancaironline.net:81/lists/flyrotary/List.html > --0000000000007311c505a62e5ad4 Content-Type: text/html; charset="UTF-8" Content-Transfer-Encoding: quoted-printable
I've put over 10hrs on the bench without a prop on. K= ept the revs under 5000. No issues here, good for debugging and modificatio= ns on the fly. You have the psru on, fly wheel, water pump, alt, so a bit o= f a load anyways.

There are so= me Mazda manuals on break in procedures in cars. Basically don't sit at= one rpm for a long time. Everyone will give you their opinion on breaking = procedures. Some say to start it up and drive it like you stole it, some sa= y to baby it.



- Matt Boiteau

On Thu, May 21, 2020, 09:24 Finn Lassen <= a href=3D"mailto:finn.lassen@verizon.net">finn.lassen@verizon.net <<= a href=3D"mailto:flyrotary@lancaironline.net">flyrotary@lancaironline.net> wrote:
1) Without prop any v= ibration will be from engine and PSRU and can
inspect engine (leaks, etc.) with no fear of prop.

2) With prop less chance of over rev and some cooling air through rads
and oil cooler.

What do you think?

Finn



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