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Activity Stream
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Jbird added a post in a topic Another Checkride in the books
Nice work Joey, thanks and congrats .Rusty
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EDMO added a post in a topic Muffler insulation
Jon,
I am only repeating what an "exhaust expert" wrote in Sport Aviation or Kitplanes mags - He stated that "If you wrap your exhaust, it will fail". I cant verify this, but it sounds logical, since part of the job of the exhaust is to get rid of combustion heat.
I think you would be better served to make and install some sort of heat shield to go between the muffler and other stuff, if that is possible, or to try to move something.
EDMO
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Jon added a topic in Avid Flyer General Hangar
Muffler insulationOn my Avid Mark IV I finally have the muffler hung. It appears close to everything radiator lines (radiator on belly), firewall and cowling (I think I have the 1/2 inch clearance all around). I was at a gathering of Sonex planes and they had the exhaust fully covered with insulation wrap. My manual said nothing about a wrap but do any of you have a wrap on your exhaust? If you do, does it affect the integraty if the exhaust metal by holding in the heat? It may not if the Sonex guys do it. Also, did you use the high temp silicon on the muffler springs?
Thanks for all
Jon
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EDMO added a post in a topic Another Checkride in the books
Joey, Are you now going to change handles to "KC10Engineer"? Congrats again!
EDMO
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akflyer added a post in a topic Another Checkride in the books
Congrats mr!
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nlappos added a post in a topic Another Checkride in the books
Congrats, Joey! I can imagine how many technical details you have to be familiar with - nice going!
Nick
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dav8or added a post in a topic engine vibs & GSC prop
I would have to agree that shimming a blade does not sound like a good idea. I have found that The blade tip tracking changes slightly by starting the tightening sequence from a different side of the prop hub both in pitch adjustment and when mounting to the gearbox. Getting the individual blade angles exactly the same is a PIA but the GSC angle gauge is pretty simple and useful. My hangar mate has used the GSC angle tool to adjust his Warp Drive prop instead of the protractor.
The only prop I have run other than the GSC GA was a fixed pitch wood prop which was smoother but unfortunately had a little too much pitch and prop diameter for my 582. I ordered new blades for my hub last year to try an increase in diameter. I also noticed that the old blades were over 20 years old with only 250 hours on them. I am waiting until I find a deal on a Rotax C box before buying a new prop but will likely change to a full composite GA prop at that time.
Dan
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EDMO added a post in a topic Another Checkride in the books
Congrats on "Flyin Higher" Joey!
EDMO
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Av8r3400 added a post in a topic Another Checkride in the books
Congratulations, Joey!
What a diverse and interesting career you have had so far in the Air Force!
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C5Engineer added a topic in Avidfoxflyers General Hangar
Another Checkride in the booksThis time a professional one. I started my USAF KC-10A Flight Engineer school back in Jan. Spent a while doing academics and sims and after a sim check did 9 rides and a checkride in the jet. After 10 years aboard the mighty C-5A/B/C Galaxy I was ready for a change. I like this jet because it's operated just like the commercial carriers operated it. We are more of a third officer than an Engineer. Much more involved with the pilots than I was on the C-5 which fits my fresh instrument ticket and being a pilot myself nicely. This is the third USAF jet I've been qualified in and second crew position. Feeling extremely blessed.
Received my key to the jet in a handshake just after the ride.
The 10 can be a tanker or a receiver. Here's the ultimate formation flight. Close to a million pounds of metal getting ready to be physically connected at over 400 kts TAS.
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Av8r3400 added a post in a topic engine vibs & GSC prop
I won't fly behind a GSC. I don't trust the design. There have been too many thrown blades.
The idea of "shimming" a blade to make it track properly scares the hell out of me.
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C5Engineer added a post in a topic engine vibs & GSC prop
The last guy I knew that had one threw a blade and twisted his engine off the airplane in cruise. He was very very lucky.
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turboturner added a post in a topic engine vibs & GSC prop
Called GSC before sending them my blades & decided to re-install them from scratch. I had a tracking issue with one blade which I fixed by using shims inside the hub. Then I set the angle/pitch as accurately as I could (using a "level" app on my iPod) and the vibrations are all but gone. I was leaning on getting another Warp (same I had on my previous machine) but I'll hang onto the GSC for as long as I can. Only 300 hrs but built in '06 (9 yrs +). 3 blades.
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EDMO added a post in a topic engine vibs & GSC prop
I had never heard about an IFA GSC - Do they still make them?
EDMO
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Guest added a post in a topic engine vibs & GSC prop
Yes I have seen vibration problems with GSC. My buddy lived with them till he switched to Whirlwind. He was unable to do anything to get rid of vibration on his 80hp 912 with the GSC. Another friend was running a GSC on his 80hp 912 KF and it was smooth as butter. One of the smoothest props I've ever felt so it must be possible to get it right. Maybe the blades dry and warp or something depending on wood grain.
I ran an in flight adjustable GSC that was awesome. It had more vibration than IVO but wasn't bad, but the reliability, convenience and performance beat the IVO hands down. I have nothing bad to day about the GSC in-flight adjustable.
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EDMO added a post in a topic engine vibs & GSC prop
I think Jim Chuk came up with the ultimate pitch setting laser fixture for the WD -
I like the way the IVO adjusts better, but I have a WD.
EDMO
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C5Engineer added a post in a topic engine vibs & GSC prop
Ed the blades of the IFA and GA Ivo are identical. Only the front plate where the electric motor bolts on is different. To adjust the GA you just turn a big nut and all three blades move together. On the Warp the blades are independent and you have to use smoke and mirrors and lasers if you want to get it really accurate. The protractor tool they sell works fine but I suspect that was part of the reason it didn't run near as smooth as my Ivo
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Av8r3400 added a post in a topic Classic IV Restoration
A crappy photo of the floor, carpeted, in the cabin. Started stitching the wing today.
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EDMO added a post in a topic engine vibs & GSC prop
Leni and Joey,
Are you comparing the GA IVO or just the IFA IVO with Warp Drive and GSC?
I have seen some postings showing cracks and other faults that happened with GA (or other?) IVO - don't know how many out of all the IVOs running have had a problem.
I would not be afraid to try one instead of my Warp Drive, but you probably get less vibs with the 4 cyl/4cycle.
EDMO
P,S. Got to take my hat off to the guy who designed the IVO for building his own bird and prop and flying to freedom across the Russian border (East Berlin?) I was there when many people got shot trying to escape...
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akflyer added a post in a topic engine vibs & GSC prop
Gsc is a 5 year or 500 hr prop at best. They pull ok but no one I know of has ever said they run smooth lol. I love the classic look of the wood prop but the ivo is 100 times smoother running.
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akflyer added a post in a topic 2nd Annual RedHills Memorial Day Fly-In pics
Looks like a sweet day!
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C5Engineer added a post in a topic engine vibs & GSC prop
I vote for Ivo or Warp. Warp is a bit more involved to ground adjust than Ivo but the blades are beefier. I had good luck with a tapered tip warp for 300 hrs. The ivo I swapped to is a three blade runs super smooth.
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turboturner added a post in a topic engine vibs & GSC prop
thnx gents. Tracking is w/i a blade tip thickness. I will be shipping them to GSC for a balance check/fix. It only has 300 hrs.
What did u replace yours with HC?
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Luked added a post in a topic Classic IV Restoration
Great progress Larry!
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Luked added a post in a topic 2nd Annual RedHills Memorial Day Fly-In pics
Thanks for sharing Joey. Your trip reports always give me extra motivation to get on with the airplane project (unfortunately other things have been getting in the way of it lately). Great pictures!
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