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| Building, Repair, and The Details - Tips and Tricks Talk about building, painting, covering, repairing, and tricking out your models. |
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03-15-2008, 05:10 PM
| #1 (permalink) |
| Bad-ass Super Contributer!   Join Date: Nov 2007 Location: Port Orchard, WA Age: 59
Posts: 4,792
 |  Dodged a Bullet on my Aviation Models Extra
So I pull the cowl off of my Aviation Models Extra 260 to do some engine tuning on it's DL-50 and just happen to notice this!! Turns out the POS aluminum angle supplied with the plane wasn't strong enough for the torque of the DL. No doubt that one more flight would have pulled the firewall out. I went to the LHS and got some thicker 3/4" angle and replaced it. Whew!!! That was a close one.
__________________ Primadonna #2, I Try Harder!! Al Lewis AMA #821623 http://www.southeastrcengines.com Remember every second of every day there are thousands of men and women giving of their lives to keep you safe. Never forget them for they never forget you!! |
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03-15-2008, 05:20 PM
| #2 (permalink) |
| Mother Huckin'  Join Date: Jan 2006 Location: Caguas, Puerto Rico Age: 23
Posts: 3,569
 | Re: Dodged a Bullet on my Aviation Models Extra
Wow Al, that was close! One more flight and disaster. Glad you found out about it before it was too late. Chinaminium is not good.  (I crashed my 260 today  )
__________________ Proudly Sponsored by: Aircraft International Aerohobbies B&E Graphics Jersey Modeler |
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03-15-2008, 05:25 PM
| #3 (permalink) | ||||||||||||||||||
| Bad-ass Super Contributer!  Join Date: Feb 2006 Location: Durango Colorado Age: 18
Posts: 1,789
| Re: Dodged a Bullet on my Aviation Models Extra
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03-15-2008, 05:25 PM
| #4 (permalink) |
| Bad-ass Super Contributer!  Join Date: Jun 2006 Location: Washington Age: 38
Posts: 422
| Re: Dodged a Bullet on my Aviation Models Extra
Nice Catch Al, that was a close one....it looks like the firewall had no glue to the side frames, is that true ? was the aluminum bracket the only thing holding it together?
__________________ ____________________________________________ WWW.FLYRCEXTREME.COM "We are the Extreme in R/C" What am I flying Now ?: Quique Aircraft Company - Python and Yak on Hacker A100 Converting all my Giants to Electric in 2008!!!!  |
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03-15-2008, 05:27 PM
| #5 (permalink) | ||||||||||||||||||
| Bad-ass Super Contributer! Join Date: Jun 2006 Location: Washington Age: 38
Posts: 422
| Re: Dodged a Bullet on my Aviation Models Extra
__________________ ____________________________________________ WWW.FLYRCEXTREME.COM "We are the Extreme in R/C" What am I flying Now ?: Quique Aircraft Company - Python and Yak on Hacker A100 Converting all my Giants to Electric in 2008!!!! | ||||||||||||||||||
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03-15-2008, 05:49 PM
| #6 (permalink) |
| Independent Thinkers Guild  Join Date: Jun 2006 Location: OCOEE
Posts: 2,396
| Re: Dodged a Bullet on my Aviation Models Extra Wow !! I'm pulling my cowling tonight!! Thanks for posing Al !
__________________ Viva La Revolution! Gassn' er' up again! RED AERO RC  www.RedAeroRC.com markc@redaerorc.com |
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03-15-2008, 06:24 PM
| #7 (permalink) |
| Bad-ass Super Contributer! Join Date: Nov 2007 Location: Port Orchard, WA Age: 59
Posts: 4,792
| Re: Dodged a Bullet on my Aviation Models Extra
Awwww Vic!!! Sorry to hear that man!!! Is it repairable??? The firewal was originally installed, after cutting the box to length, with the angle and epoxy. The epoxy broke of course as did the angle. Everytime I think about the NEXT flight it scares me as I only have one way to take off...straight up!!! http://www.flyinggiants.com/gallery/...hp?photo=40186
__________________ Primadonna #2, I Try Harder!! Al Lewis AMA #821623 http://www.southeastrcengines.com Remember every second of every day there are thousands of men and women giving of their lives to keep you safe. Never forget them for they never forget you!! |
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03-15-2008, 09:28 PM
| #8 (permalink) |
| Mother Huckin' Join Date: Jan 2006 Location: Caguas, Puerto Rico Age: 23
Posts: 3,569
| Re: Dodged a Bullet on my Aviation Models Extra
Thanks for caring guys. All the info and pics are in the dumb thumbd forum. Dont wanna hijack Al's thread. Sorry bud.
__________________ Proudly Sponsored by: Aircraft International Aerohobbies B&E Graphics Jersey Modeler |
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03-15-2008, 09:39 PM
| #9 (permalink) | ||||||||||||||||||
| Bad-ass Super Contributer! Join Date: Jan 2006 Location: Pennsyvania Age: 36
Posts: 832
| Re: Dodged a Bullet on my Aviation Models Extra
Actually it probably had nothing to do with the torque of the engine. Vibration kills aluminium angle, specially if it is bent alum. Albert
__________________ Carden Aircraft | ||||||||||||||||||
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03-16-2008, 08:02 PM
| #10 (permalink) |
| Bad-ass Super Contributer!    | Re: Dodged a Bullet on my Aviation Models Extra
Actually it looks like window framing aluminum and that stuffs about as strong as chewing gum. Seriously if it was decent quality alloy and bent it would still be stronger that that extruded stuff. The only load that stuffs designed to take is the wind rattling the glass. Good catch AL: Just goes to show that pulling that cowling off every once in a while has value. ARF´s are not fly and forget models. You need to maintain them just like anything else. |
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03-16-2008, 08:47 PM
| #11 (permalink) |
| Bad-ass Super Contributer!  Join Date: Jan 2006 Location: Austin, TX, USA
Posts: 283
| Re: Dodged a Bullet on my Aviation Models Extra
Where is the top of the engine box?
__________________ Bob S Austin, Tx "You're not drunk if you can lie on the floor without holding on." |
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03-16-2008, 09:01 PM
| #12 (permalink) |
| Flyin Higher  Join Date: Jan 2006 Location: HARTWELL,GEORGIA Age: 52
Posts: 253
| Re: Dodged a Bullet on my Aviation Models Extra
Good Catch, I always Gorilla Glue my firewall, install the alluminum, and drill and pin the sides into the firewall. I am running a 30% w/ 55CS, a 35% w/ 106cs, and a 40% w/ 170cs all Aviation Models, never had an issue. I think the metal is weaker (thinner) in later models. Great heads Up for fellow pilots Thanks
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