Today's Message Index:
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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
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| Subject: | Re: Any Ultra Prop / Competition Aircraft experience or reviews? |
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
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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
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Another good story!! Sounds like fun.. in that no one was killed!! LOL
On 2021-07-06 2:20 pm, Richard Pike wrote:
> <thegreybaron@charter.net>
>
> 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
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| Subject: | 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.
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