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jackak added a post in a topic Lost a Good Friend Today 6 Jun 2015

Randy,
So sorry to hear about Jay. He was a great guy and a good friend.

Jack

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SuberAvid added a topic in Avidfoxflyers General Hangar 6 Jun 2015

A sad day for me today; a good friend and pilot who has been a great teacher and mentor for me here was killed yesterday from a prop hitting him. A retired AF fighter pilot, commercial airline pilot and owner and operator of Alaska Cub Training Specialists here on Wolf Lake; also one of my closest flying safety nets. He brought my spare prop to me just last summer after I took it out and stranded myself in the middle of the Matanuska River. I always knew if anyone could get to me he could, and he would be ready to help any time; just as he did for many others. Jay Baldwin; a great pilot, instructor, family man, poet and friend; he will be missed by many.

Fly safe friends, and especially fly saved.

Randy

10 replies
1,276 views

EDMO added a topic in Hangar Talk 6 Jun 2015

AMPHIB FLOATS FOR CHRIS !

KOOL IDEA Chris,
Put floats on your Kayak Hauler, so you can load your boat on land, unload at the boat dock, and go down the rapids - load it up and fly off of water and home to the hanger ! KOOL
You don't even have to remove your nosewheel !
EDMO

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537 views

EDMO added a post in a topic 582 charging 6 Jun 2015

The larger alternator pulley should slow down the rpms of the alternator, so it gets less wear, less chance of overrev - Right?
EDMO

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Guest added a post in a topic 582 charging 5 Jun 2015

The oversize pully makes a lot of sense. You can easily figure out the RPM the Alt will be turning by doing a pully ratio calc to make sure the alt won't be over reved with the large pully. I'm sure specs are available for the alternator design RPM.

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Av8r3400 added a post in a topic Classic IV Restoration 5 Jun 2015

Panels behind the seat carpeted and installed.

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EDMO added a post in a topic 582 charging 5 Jun 2015

Chris,
I have 2 Subaru engines - one has a heavy-looking Nippon standard-looking alternator, (I think), and the one for the plane has a light weight Nippon alternator with a factory skeletonized body - haven't bothered to weigh each of them - just planning on using the light-looking one that came with the engine that looks like the one I have a bid on. Hope this makes sense - confused me to read it again! Ha!
EDMO
Still wondering about the oversize pulley - read about doing that somewhere before because of high 4000+ cruise rpms, compared to average 2000 rpms for car travel at 55 mph.

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Guest added a post in a topic 582 charging 5 Jun 2015

So what are you building that needs anything bigger that a small alternator? Keep it light weight!

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Guest added a post in a topic 582 charging 5 Jun 2015

i didn't answer your question.....I don't know. look close at the output curve of your alternator. 35A may actually be fine. I bet the 50A breaker is a LOT of money )

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Guest added a post in a topic 582 charging 5 Jun 2015

The breaker should be the next size bigger than the alternator output amperage, and the wire should be big enough not to melt down at the apperage rating of the breaker. So lets say you have a 30 amp alternator. Choose a 40 amp breaker and wire the alternator with wire that will not melt or quickly catch on fire with 40 amps passing thru it momentarily. If you use a wire rated for 30 amps continuous without generating too much heat, it should also work fine to carry 40 amps long enough not to melt before the breaker blows. That way if the alternator runs away you can pull the breaker and disconnect as quickly as you figure out what happened. If the alternator should short circuit, the wire will not melt before the breaker blows automatically from the battery being shorted to ground thru the alternator.

So you end up with manual overvoltage protection and automatic alternator short circuit protection.

Did that meke sense?

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EDMO added a post in a topic 582 charging 5 Jun 2015

Thanks Chris,
      Next Question - I am sure you have answers - Spruce lists breakers to 35 amp - then 50 to 100 amp - Where do I find a 40 amp pull-type breaker - How much is it ?
      I may have a 40 amp regular breaker in my Piper parts, and have the split Cessna master switch - Guess this wont work? I could add a heavy toggle or pull switch to the 40 amp breaker circuit.
      I really APPRECIATE all the good info you have posted.
BTW: I have a $50 bid right now on a Nippon alternator - So will have one spare heavy Nippon alternator, and a lightweight spare if you ever need another, if I get the bid.
      There is another Nippon small alternator on ebay with a large 3 3/4" pulley - Do you think a larger pulley is needed with high rpm auto engines, or is the stock pulley OK?
I may also have a Rotax regulator if someone needs it - (little flat square thingy?)
Thanks,
EdMO

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Guest added a post in a topic Full Lotus type FLOATS - MAKE OFFER 5 Jun 2015

What is the weight rating on these? I don't know much about FL floats, but would LOVE to learn buy doing. The Flat Avid I would install them on is 1250 gross.

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Guest added a post in a topic Overhaul time! 5 Jun 2015

That video is hillairous!

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Guest added a post in a topic 582 charging 5 Jun 2015

For Ed- If you do a switchable breaker like I did it goes on the big output wire of the alternator. It will allow you to manually disconnect the alternator from the system if it runs away, and will also protect the rest of the electrical system in the plane automatically if the alternator should fail in a total short circuit to ground as opposed to failing in a runaway mode.

For Dusty- Grab that free Rotax regulator and install it. Make sure you have a small load on the system like position lights so it will regulate properly. They are bombproof regulators. I would be super surprised if you ever see an overvoltage again. You do have a battery right? How big is it?