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clojan(at)sbcglobal.net
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 Posted: Fri Apr 28, 2006 9:29 pm Post subject: worst landing of my life |
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Ok Ron: Here is the report. First let me say that 8830c is usable again! My airplane partner, Steve, and I started out early this morning at Chandler-Fresno and got the plane all ready to go. I did a couple of high speed taxi tests again and everything was fine except no one could hear me on the radio. Back to the hanger to find the problem and started taking off the top skin. 2 hours later Steve found a loose connector and that seemed to be the problem. Around noon I took "charlie" to the runway and decided that all was good to go. I decided this was going to be the real thing and no crow hops. Nerves in check, I applied full power and by the time I found the airspeed instrument again it was at 60mph and back I pulled. I gotta tell you that quite a relief came over me when the little plane started to go where I pointed. By now I was pretty sure that I was not going to veer off to one side and crash. The climb out was fast! No heavy left wing felt but really really
pitchy. My plan was to turn crosswind quickly and stay over the airport but by the time I thought about it I was quite a ways out. Durning the climb my eis warning light started flashing and I determined that the cause was CHT. The limit was set to 375 and I was getting close to 400. On downwind I pulled the power hoping to lower the temp . I had to get the plane on the ground fast! I did not panic but I really didn't want to fry $15000 for lunch. My plan was to be able to fly around the pattern several times and get a feel for the plane before landing. Instead I was going to have to land after only a couple minutes of flight. Everything was feeling right on base and final until I got over the fence and I thought I got into turbulence but it got worse. I suspect that I probably fell into some pilot induced oscillation but it was quite a rollie pollie ride to the ground. I wanted to give it power and go around but I wasn't sure that the jabiru would not cook it's heads.
I think the tail tie down finally stopped the oscillation because I did hear it scrape and then mains planted firm. I have never scraped a tie down in thousands of landings ,even in my student days, and I got to say that this was the worst landing of my life. Of course, everybody in the restaurant had to be watching. Steve told me later that he wasn't worried because he was laughing pretty hard after watching it. He said it just looked like one of the student pilots that fly tomahawks out of our airport. After inspection of the plane we found no damage except for a small scrape on the bottom of the tie down. What a strong little design Chris has made! How flimsy this thing was sitting on my bench during construction but it has proven that it can take some abuse.
This next week we will be working on the cooling issue and I can't wait to fly it again. This time the landing will be like a butterfly with sore feet! Jack in Los Osos CA
P.s Steve and I would like to thank this list for all of the help that we received over the last 3 years of building. I have been so busy lately that I haven't had much time to answer questions of new builders but now it is time to pay back what we have received. THANK YOU!!
P.s.s. I do have a video from the pilots view which I hope to get posted if I can figure out how to do it.
do not archive
Ron Lendon <rlendon(at)comcast.net> wrote:
Hope all went well. It's now 9:30 pm esdt. Give us a reoprt.
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Ron Lendon, Clinton Township, MI
Corvair Zodiac XL, ScrapBuilder
Do Not Archive
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armyret(at)mchsi.com
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| Posted: Sat Apr 29, 2006 5:33 am Post subject: worst landing of my life |
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Jack- Great story- Congrats on the first flight!! You and Steve must be
very excited. Much luck on all all future flights.
Al Young
XL-jab
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JAPhillipsGA(at)aol.com
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| Posted: Sat Apr 29, 2006 6:42 am Post subject: worst landing of my life |
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Jack, we are all very happy to read about your successful first flight and
great landing. Those of us that have built and flown really understand. I was
not too concerned for my safety I just did not want to bend the plane and I'm
sure you were exactly the same. Almost like having a baby. Ha. We look forward
to many more success stories from Mr. Chuck. Best regards, Bill of Georgia
N505WP 601XL-3300
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naumuk(at)alltel.net
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| Posted: Sat Apr 29, 2006 7:05 am Post subject: worst landing of my life |
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rstone4(at)hot.rr.com
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| Posted: Sat Apr 29, 2006 12:20 pm Post subject: worst landing of my life |
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Jack,
Check your baffling and cooling ducts and I am sure this is where you
will find the problem. Just make sure the installation instructions have
been followed to the letter. I am building an XL also and no where close to
complete but I have a friend who built one and had the same problem you
describe and he found on examination the cooling ducts were not properly
aligned. When they were properly aligned, the problem disappeared.
Bob Stone, Harker Heights, Tx
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Tim Juhl
Joined: 21 Mar 2006
Posts: 488
Location: "Thumb" of Michigan
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| Posted: Sun Apr 30, 2006 10:07 am Post subject: Re: worst landing of my life |
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Just a question..... do Jab cylinder head temps run a little hot during break-in?
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_________________
______________
CFII
Champ L16A flying
Zodiac XL - Jabiru 3300A
Almost done! It'll fly in spring! |
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clojan(at)sbcglobal.net
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| Posted: Sun Apr 30, 2006 11:42 am Post subject: worst landing of my life |
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Tim: I believe that most do. I have an advantage in that the west coast Jabiru dealer is located at my home airport at Chandler-fresno. He set the max cht to375 deg. I am now working to tweak the cooling with him. Jack
Tim Juhl <juhl(at)avci.net> wrote:
Just a question..... do Jab cylinder head temps run a little hot during break-in?
--------
CFII
Champ L16A flying
Zodiac XL - awaiting kit
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rstone4(at)hot.rr.com
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| Posted: Sun Apr 30, 2006 4:34 pm Post subject: worst landing of my life |
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Tim,
It's normal for any new engine to run a little on the hot side during
break in because of tight fitting parts.
Bob Stone, Harker Heights, Tx
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