Don Greer wrote: >>I believe that the only flexible hoses which will get the nod from your inspector are the MS28741 series rubber hose assemblies. <<
My DAR inspector, and I suspect most, wouldn't say a word about flex lines, as long as they are properly installed and routed, and aren't el-cheapo rubber fuel line from the parts store....especially to the level of what MS spec they meet. Most would probably like to see some kind of fire-sleeve installed too, but mine didn't care. I used Earl's Pro-Lite 350 hose because it's high quality hose with a pedigree, is light, uses standard AN fittings, and is proven in the racing industry. I've had zero problems with it or the fittings. The big problem with barbed fittings is that they are just about impossible to get off once installed. I started out with barbed fittings on my instrument static and pitot connections, thinking I'd never have to remove them. Thirty seconds after installation I discovered I needed to remove one, and it probably took ten minutes, and I destroyed the fitting in the process. I ripped it all out and put in plastic screw fittings instead, which I've disconnected/reconnected probably 50 times over the years playing around and modifying that system. Barb fittings are not worth the pain... Mark Langford ML at N56ML.com website at http://www.N56ML.com --------------------------------------------------------