THE MACHINIST

THE MACHINIST added a post in a topic Airspeed drastic change with decreased AOA 21 Sep 2016

On my first crow hop the airspeed was inoperative so I took the hose off and blew it out from the inside out. (With gauge disconnected) didn't see anything bad come out but couldn't blow through it before with my mouth after using compressor on it then I could
I didn't see a small hole in the second tube but I may have missed it. I only see one line running from the wing into fuselage so it may be just for strength. I posted a picture of the dash so you guys could see if you're running the same airspeed gauge. I only saw one tube going into that as well so maybe the static port is just a hole in the back of the gauge. I didn't think about it being too far rearward. That seems plausible as well.

Thanks again for for all your thoughts

Jamie

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THE MACHINIST added a topic in Avidfoxflyers General Hangar 21 Sep 2016

Airspeed drastic change with decreased AOA

second flight of my c model last night trying to figure out why my airspeed is within 10% during climb out at 30 degree angle or more (verified on gps by flying a box). As soon as I lower the nose it is off 20-30%. Not sure if a static port is plugged or....................?
joey said he only has a pitot tube on his wing not a second tube which I am assuming is static and his is very accurate

thanks for any input

jamie

26 replies
2,367 views

THE MACHINIST added a post in a topic SkyRaider 1 kit 16 Sep 2016

I would be interested in the wheel penetration skis if you want to sell them separate

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THE MACHINIST added a post in a topic C model back in the air! 14 Sep 2016

Thanks again for the help jim

trying to get ahold of Lenni to go look at some parts for me

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THE MACHINIST added a topic in Avid fox flyers pics and vids 11 Sep 2016

C model back in the air!

Got my tw endorsement and flapperon repaired so finally time to test her out. Instructor crow hopped her a couple times then we both did Blowing 20 gusting 30 saw some nice ground speed at least in one direction Thankfully mostly in line with runway. After that we stayed close over a large box field near the pattern for an hour or so To check things out overall very happy! Just have some air in the right brake line I need to get rid of then more testing and transition training. The GoPro is My sons It is pretty amazing if you're smart enough to work it. I meant to shoot video but only got a couple still frames So will try to get that figured out next flight. Thanks again to Jim and Joey for hooking me up. Jamie

3 replies
987 views

THE MACHINIST added a post in a topic Parting out MK4 Avid 11 Sep 2016

Any skis or floats or cargo bag available?

thanks
jamie

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THE MACHINIST added a post in a topic Installed extended baggage 8 Sep 2016

Very cool

is the weight and balance calculator something you made or an online app?

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THE MACHINIST added a post in a topic Installed extended baggage 8 Sep 2016

My baggage area states 30lbs. What are you able to put in yours weight wise?

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THE MACHINIST added a post in a topic Replacement o ring for fuel drains? 5 Sep 2016

It says c76 on the side but I couldn't find a drain with that model Curtis was my guess as to maker but didn't see that model
i will give cleaning a try

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THE MACHINIST added a topic in Technical tasks 5 Sep 2016

Replacement o ring for fuel drains?

anyone know the correct size O ring for the fuel drains? I'm assuming they can be replaced? Mine are seeping

thanks
jamie

7 replies
3,523 views

THE MACHINIST added a post in a topic Broken Flaperon mount? 5 Sep 2016

Thanks someone sent me a link to that. I elected to use slightly wider plywood and double it
Today I fit a new wider rib cap to give more area to re-glue my fabric

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THE MACHINIST added a post in a topic Broken Flaperon mount? 3 Sep 2016

Today I used MEK and peeled back the tape then slit the fabric along the rib cap.
i decided I couldn't to a good enough job with the wing on the plane so off it came.
I had to cut the lower rib cap so I will put a wider one in to replace it so I have more area to tie the fabric back into
in order to keep the tension on the trailing edge cable I needed to be able to run from the spar to the cable so I used one piece of plywood on the right side of the rib. In order to replace the rib I had to slit it to the point of the cable then I put a short section on the left to tie in my splice. I used scotch weld 2216 to bond it all together.
Should be stronger than before

thanks again Jim Chuk for the plywood

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THE MACHINIST added a post in a topic Broken Flaperon mount? 28 Aug 2016

When one looks up piss poor in the dictionary a picture of this repair would be its definition.
Whatever glue was used never even made it to the tip their were no fasteners of any kind used and it was only a couple inches long. I'm sure it was just a bandaid to sell it. Grrrrrrrrrr.

The up side is there was no rot and structurally all looks well aside from this isolated damage.
Does anyone have any info on how the repair is made in England using the aluminum sandwich.

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THE MACHINIST added a post in a topic Broken Flaperon mount? 26 Aug 2016

I guess I will order the hysol what size do you think I need to repair both sides with the counter balance (one on each wing) by sandwiching aluminum on both sides?

thanks

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THE MACHINIST added a post in a topic Broken Flaperon mount? 26 Aug 2016

Jim

thanks

I called you back but it rang and rang
is there any substitute for hysol 9460 that I could buy at Home Depot or Lowes? I can't find hysol locally and was hoping to do the repair this weekend.

Thanks

jamie

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THE MACHINIST added a post in a topic Broken Flaperon mount? 25 Aug 2016

My plan is to cut out the damaged wood and put in new wood and sandwich that with aluminum

jim
edmo is exactly right that is my plan

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THE MACHINIST added a post in a topic Broken Flaperon mount? 25 Aug 2016

Does anyone have a STOL wing open they could take measurements of the triangle to the tail of the flapperon so I can cut some aluminum to fit in and sand which my splice. My plane is an hour away and was hoping to get the aluminum cut before I get there. I think I will reinforce both sides where the counter balance is.

Thanks

jamie

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THE MACHINIST added a post in a topic Broken Flaperon mount? 22 Aug 2016

Edmo
think I will try to sandwich it as well. How long ago did you do your repair and any issues since? If I use a poly system solvent to peel back the tape can it cause any damage if it isn't a poly system product?

jack. It moves smoothly throughout its range of travel. All I can figure was hangar damage. Repaired poorly and maybe stressed by trailering.

I hope it doesn't break again One with rot caused a crash in the Midwest. I think the guy ended up in a river I think
Thanks guys

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THE MACHINIST added a post in a topic Broken Flaperon mount? 22 Aug 2016

Unfortunately it is cracked through and moves

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THE MACHINIST added a topic in Technical tasks 22 Aug 2016

Broken Flaperon mount?

Sadly on my first pre-flight I found a broken flapperon mounting point above the anti flutter counter balance. It looks to have been repaired before. I have read of several ways to repair it my question is what fabric system system was being used or recommended by avid in 1990. That is what the aircraft logbooks say they used what the factory manual recommended.

Thanks in advance

Jamie

30 replies
9,446 views

THE MACHINIST added a topic in Technical tasks 20 Aug 2016

Rotax 582 c box Gearbox oil amount?

Need to replace my gearbox oil.
not finding the correct amount.

I found this nice article as well as many others but doesn't mention if the engine is mounted normal or inverted.

http://www.rotax-owner.com/en/rotax-forum/1-2-stroke-technical-questions/4629-c-gearbox-oil-change

Mine is inverted