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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: DM5PR18MB1548.namprd18.prod.outlook.com X-MS-Exchange-CrossTenant-Network-Message-Id: a39c9475-43a3-482e-c629-08d8c47e4377 X-MS-Exchange-CrossTenant-originalarrivaltime: 29 Jan 2021 17:49:44.8162 (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: KWmMrUIgqywcCYK/yz8BLH8NxiDpw26ViK6yrlp4VS1z7DTSR4DpcD6F2GASUFseDCgAS6G226ZFuIhq8iVFvg== X-MS-Exchange-Transport-CrossTenantHeadersStamped: DM6PR18MB2572 Matt there are airplanes out there with side exit louvers ... the Beech Cra= ft Bonanza and the Carbon Cub for two examples. There's a guy with a Murph= y Moose and an LS3 engine using cowl louver exit exclusively ... here's a l= ink to his video ... https://www.youtube.com/watch?v=3DQyiEAcwhirg .... Due to some of my cooling issues, I adapted some louvers into my cowlings l= ast summer ... here is a link to my experimentation video ... https://www.y= outube.com/watch?v=3DkhG0J6zGVl0 ... Jeff 13B, RD1-C, EC2, 186 hrs Le Roux, I have talked with Alex a bunch over exit louvers on the side. We = are hoping to tune the exhaust dumping better to help pull air out of the b= ottom of the cowl. I don't see too many exit louvers though on planes. Any = reason for it?