From: "Jeff Whaley jwhaley@datacast.com" <flyrotary@lancaironline.net>
Received-SPF: none
 receiver=logan.com; client-ip=40.107.96.42; envelope-from=jwhaley@datacast.com
To: Rotary motors in aircraft <flyrotary@lancaironline.net>
Subject: RE: [FlyRotary ] Exhaust broke again
Thread-Topic: [FlyRotary ] Exhaust broke again
Thread-Index: AQHXYqYxka6Iu2QRCEimV9ZsJAGjPA==
Date: Wed, 16 Jun 2021 11:53:16 +0000
Message-ID:
 <CO6PR18MB44516EDD2E9EAC90BC2E767CC40F9@CO6PR18MB4451.namprd18.prod.outlook.com>
References: <listdigest-91423@logan.com>
In-Reply-To: <listdigest-91423@logan.com>
Accept-Language: en-US
Content-Language: en-US
x-ms-exchange-antispam-messagedata-chunkcount: 1
x-ms-exchange-antispam-messagedata-0:
 =?us-ascii?Q?QdYOAgim12calQP7yQ9r73RX12ncqg8wtWfjIjWir0L880sBTgCyfsOMEEVH?=
 =?us-ascii?Q?fRtOuac3a5gXQvev6Np/lckKJe2+zQ5nWdEWQ/YEXrDvFdNmNr+Nl0ii8kII?=
 =?us-ascii?Q?UUNAC13V2+IIkfhU2s6IdsR6OSRQh0oj7FinQKfRFKQUZnTZ0TBaCLJthQ1v?=
 =?us-ascii?Q?9FXW30yZ4bJqdRSbiV5Cjar0AOvCNvD8MgHxirfYBA/wxzlj2cDicB0DaBI8?=
 =?us-ascii?Q?KF0CcOGwWUYdps0COmmAOzbZQFwnRX5u+4PBgeKMOvB+jOyEhWG0+pfWE1Yn?=
 =?us-ascii?Q?sJWSaMzoOPVYPEEmxUqpDMxMQLLgbmO6BZ99tyQNakfXQkIx9dQ/ibBGmgik?=
 =?us-ascii?Q?VuNWbWlf+xZDfDeAozr9mDlAFX7Lz8zFQLpJyGbysYzrpEixaAJZe8IGsYR6?=
 =?us-ascii?Q?BgrFlS9bCYl1zlAjQtazzNqhh8Th2VS1lL3WAJ9LV6h+dYDKTQd+ldOtw7Hq?=
 =?us-ascii?Q?GW9q3zJzEfFxLOqmw3OwpSgWmI8ERDYHdhc1XJwwf32S8oXjY0bMjDkKjVr4?=
 =?us-ascii?Q?RUZziCbDgofp5g8EkcC9s3jPRCcM8JP7SsQ0p+UrAeUZdqhoa+MF5UnIAliD?=
 =?us-ascii?Q?yr+35WuSoj4AsgdMU/hXFH8t38XETmm/phJEzZwj81XC18Wn40i8qeerktcp?=
 =?us-ascii?Q?bk/BYcUpECE4nSrnCGrQ1I/Tzgz9qAZrqmX8hlgZ3n83ceLmac9Iv+kdMXgt?=
 =?us-ascii?Q?EHpN66EcPOAMoEtribN4GWY3nReJ67OGmPEUQF7LJvB4XUmrT673kdk/KkjB?=
 =?us-ascii?Q?RagE+D1bqmm23TYuqTsXyboaOo6+N3V0pnQJFW33bg+m3CEhfcqsa2F6k3kg?=
 =?us-ascii?Q?r2b17iq0KE+QWjTOBwqEbtv045FqPdziwJVnf49KX7RkOmrsM/sHauxMj/Tw?=
 =?us-ascii?Q?HIUawVVuB5Iq1PmeYkiq0t5PCRPNzyBBXjGiZTFnXJ4VaGKbIHW5NjiPLRHH?=
 =?us-ascii?Q?DV3V/0IUt3VbOOQGcBelbIeaIudajRoEnLCAgudM6L5UPJYcWJBDQ+AIGX+B?=
 =?us-ascii?Q?8VuQQYAZcBRev8uK+Ykf2PEhCV2uE6DTTsGL0jOwmImD9CKvWlP2qz/gGrsg?=
 =?us-ascii?Q?SDWoGOgPI+/6Q/+kGC35S4YvyocavFka/c+Y6nW3/TxDAWQMAnXMHxGSIlkh?=
 =?us-ascii?Q?ZwwG4V70ONRPEwTpwtM7OptM1zGw1mn7KRJYSUXDzC+19byBS/BcavQsKReE?=
 =?us-ascii?Q?XUMC+alW1VmkTnZYhgY9ibBsPLKvBIb7pToX2UwIqPjPnO21oa60UQua6u1J?=
 =?us-ascii?Q?RPvyM1gWj0H2LljFZNtI9AC1F66PnCsWqHpIkHqrwQCwXWbC77kKOdNOIzVN?=
 =?us-ascii?Q?f7wZG1jlaVqS9HgPWrepeI0r?=
x-ms-exchange-transport-forked: True
Content-Type: text/plain; charset="us-ascii"
Content-Transfer-Encoding: quoted-printable
MIME-Version: 1.0
X-OriginatorOrg: datacast.com
X-MS-Exchange-CrossTenant-AuthAs: Internal
X-MS-Exchange-CrossTenant-AuthSource: CO6PR18MB4451.namprd18.prod.outlook.com
X-MS-Exchange-CrossTenant-Network-Message-Id: 011b34ae-5980-48f2-3d67-08d930bd5448
X-MS-Exchange-CrossTenant-originalarrivaltime: 16 Jun 2021 11:53:16.8876
 (UTC)
X-MS-Exchange-CrossTenant-fromentityheader: Hosted
X-MS-Exchange-CrossTenant-id: a07f70c7-0440-4b97-b25f-a93dca3f0980
X-MS-Exchange-CrossTenant-mailboxtype: HOSTED
X-MS-Exchange-CrossTenant-userprincipalname: 5lxVybdob09/TpMvIpjRTBnYODh9B0FIkhySI59FyoFtfKuckKrdRyzZHVt3w9rZtvHmrOkSCJ/84aZLBBuBPQ==
X-MS-Exchange-Transport-CrossTenantHeadersStamped: CO6PR18MB4516

Hi Matt, I could be wrong but your muffler looks like the one MISTRAL insta=
lled, failed, and brought down their test aircraft ... not sure why you are=
 going that route?
Yep, looks like the easiest, most compact design but why flog a dead horse.=
  Three or four feet downstream from the exhaust ports is a much safer plac=
e for a roll-your-own muffler.
My 2 cents worth ... Jeff

Exhaust broke again. You can see my design here
https://www.homebuiltairplanes.com/forums/threads/quiet-flight.6560/page-8#=
post-509393

and how it broke at the end of the thread.
https://www.homebuiltairplanes.com/forums/threads/quiet-flight.6560/page-9

I only used 0.050"thick 321ss for the inside perforated pipe. I'm guessing =
I should find thicker pipe, and add more holes for version: 14 ?


- Matt Boiteau