---------------------------------------------------------- Kolb-List Digest Archive --- Total Messages Posted Tue 07/06/21: 4 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 08:54 AM - Re: Any Ultra Prop / Competition Aircraft experience or reviews? (rdbkr99999) 2. 11:20 AM - Re: More crud (Richard Pike) 3. 01:45 PM - Re: Re: More crud (1957grnchev@bluemarble.net) 4. 02:31 PM - Re: Ultra Prop / Competition Aircraft experience or reviews (Edward Bonsell) ________________________________ Message 1 _____________________________________ Time: 08:54:57 AM PST US Subject: Kolb-List: Re: Any Ultra Prop / Competition Aircraft experience or reviews? From: "rdbkr99999" The only experience I have is with a 2 blade ultra prop 2 on my friends J3 Kitten with a 447 and a 2.58:1 gearbox. It runs very nicely with the 9 degree pitch blocks but we may try to 10 degree blocks instead. I would think 3 blades would be enough to use all the horsepower of a 582 on a 66" prop. Maybe with the 3.0:1 it could use 4 blade though. I'm not really sure on that. Read this topic online here: http://forums.matronics.com/viewtopic.php?p=502721#502721 ________________________________ Message 2 _____________________________________ Time: 11:20:57 AM PST US Subject: Kolb-List: Re: More crud From: "Richard Pike" Nephew & I set a 5 gallon steel bucket WAAAY out in the field, pointed the devices down, surrounded it with cinder blocks and covered it with chain link fence. Had a bunch of scrap wood soaking in kerosene all day, packed into the bucket around the devices, set it on fire and got back. The two 10 gauge shotgun shells went off after about 15 minutes, good thing we had the chain link fence over everything, the base of the launcher was screwed into the 4x4 with 3/16 wood screws, it sheared them off, and bounced the launcher off the chain link, knocked a pretty good dent in it. The slug went through the bottom of the bucket and is about 11" deep in the ground. About 15 minutes later the rocket went off with a loud WOOF, it also penetrated the bucket, I cleaned up the mess this morning, took these pictures. Quite thankful now that the shotgun shell device did not fire Sunday night, since it sheared the screws. Once again the Lord protected his idiot preacher, not to mention the neighbors who were off to the side. -------- Richard Pike Kolb MKIII N420P (420ldPoops) Kingsport, TN 3TN0 Forgiving is tough, being forgiven is wonderful, and God's grace really is amazing. Read this topic online here: http://forums.matronics.com/viewtopic.php?p=502724#502724 Attachments: http://forums.matronics.com//files/p1010554_medium_116.jpg http://forums.matronics.com//files/p1010555_medium_186.jpg http://forums.matronics.com//files/p1010558_medium_861.jpg ________________________________ Message 3 _____________________________________ Time: 01:45:39 PM PST US From: 1957grnchev@bluemarble.net Subject: Re: Kolb-List: Re: More crud Another good story!! Sounds like fun.. in that no one was killed!! LOL On 2021-07-06 2:20 pm, Richard Pike wrote: > > > Nephew & I set a 5 gallon steel bucket WAAAY out in the field, pointed > the devices down, surrounded it with cinder blocks and covered it with > chain link fence. > Had a bunch of scrap wood soaking in kerosene all day, packed into the > bucket around the devices, set it on fire and got back. > > The two 10 gauge shotgun shells went off after about 15 minutes, good > thing we had the chain link fence over everything, the base of the > launcher was screwed into the 4x4 with 3/16 wood screws, it sheared > them off, and bounced the launcher off the chain link, knocked a > pretty good dent in it. The slug went through the bottom of the bucket > and is about 11" deep in the ground. > > About 15 minutes later the rocket went off with a loud WOOF, it also > penetrated the bucket, I cleaned up the mess this morning, took these > pictures. > > Quite thankful now that the shotgun shell device did not fire Sunday > night, since it sheared the screws. Once again the Lord protected his > idiot preacher, not to mention the neighbors who were off to the side. > > -------- > Richard Pike > Kolb MKIII N420P (420ldPoops) > Kingsport, TN 3TN0 > > Forgiving is tough, being forgiven is wonderful, and God's grace > really is amazing. > > > > > Read this topic online here: > > http://forums.matronics.com/viewtopic.php?p=502724#502724 > > > > > Attachments: > > http://forums.matronics.com//files/p1010554_medium_116.jpg > http://forums.matronics.com//files/p1010555_medium_186.jpg > http://forums.matronics.com//files/p1010558_medium_861.jpg > > > ________________________________ Message 4 _____________________________________ Time: 02:31:26 PM PST US From: Edward Bonsell Subject: Kolb-List: Re: Ultra Prop / Competition Aircraft experience or reviews In 1983 I bought an Advanced Aviation Cobra. After flying it for a while I bought a 3 blade Ultra Prop. I thought it was great. It was smoother than the 2 blade wood prop. It was easy to change the pitch blocks experimenting with it. After I sold the Cobra the owner later experienced a rock strike that took a chunk out of one blade that was at least a quarter inch deep and half inch long in the leading edge of one of the blades. He worked some PC7 into it, filed it back to the original shape, and flew it like that for a few years before he sold it. ------------------------------------------------------------------------------------- Other Matronics Email List Services ------------------------------------------------------------------------------------- Post A New Message kolb-list@matronics.com UN/SUBSCRIBE http://www.matronics.com/subscription List FAQ http://www.matronics.com/FAQ/Kolb-List.htm Web Forum Interface To Lists http://forums.matronics.com Matronics List Wiki http://wiki.matronics.com Full Archive Search Engine http://www.matronics.com/search 7-Day List Browse http://www.matronics.com/browse/kolb-list Browse Digests http://www.matronics.com/digest/kolb-list Browse Other Lists http://www.matronics.com/browse Live Online Chat! http://www.matronics.com/chat Archive Downloading http://www.matronics.com/archives Photo Share http://www.matronics.com/photoshare Other Email Lists http://www.matronics.com/emaillists Contributions http://www.matronics.com/contribution ------------------------------------------------------------------------------------- These Email List Services are sponsored solely by Matronics and through the generous Contributions of its members.