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It finally happened!

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engineerguy3737(at)yahoo.
Guest

Posted: Wed Sep 20, 2006 7:00 am Post subject: It finally happened!

It finally happened. After 8 months of being packed

away from my move, I was able to get my kit out and

start drilling some holes!



I was planning on scratch building the rest of my

plane. Whats the cheapest place for aluminum these

days? I know I could save on shipping by going with

Wicks since there is one nearby, but I don't know if

the cost of shipping is compareable to what I would be

saving by going somewhere else.



Thanks,

Dan Lykowski

Dynon Avionics



Do Not Archive



__________________________________________________

pacificpainting(at)comcas
Guest

Posted: Wed Sep 20, 2006 7:16 am Post subject: It finally happened!

Dan,



Does the Dynon Avionics after your name mean you work there or you are using 

their stuff?



Dave in Salem



do not archive

---

randy(at)n344rb.com
Guest

Posted: Wed Sep 20, 2006 7:28 am Post subject: It finally happened!

I'm scratch building...  I bought all of my aluminum sheeting from Yarde 

Metals.  They were by far the cheapest I found.  For smaller pieces of stock 

you'll need, I'd recommend using Speedy Metals.



I'll paste URL's for both, the system my kick them out, but I'll try 

anyways:

Speedy Metals: http://stores.ebay.com/SPEEDY-METALS-1-888-744-4140

Yarde Metals: http://www.yarde.com/



Thanks,



Randy

XL Wings - Plans Only

http://www.n344rb.com

Do Not Archive

---

ggower_99(at)yahoo.com
Guest

Posted: Wed Sep 20, 2006 9:43 am Post subject: It finally happened!

Hello Dan,  

   

  Just to know...   Not relevant.  Just what plane is it?   601 or 701...

   

  And where are you located?  Could be in your signature.

   

  Well,  good for you that you started,  hope to hear soon about your first flight...

   

  Lets all keep debouring, the most interesting part of building 

   

  Saludos

  Gary Gower

  Flying from Chapala,  Mexico.

  701 912S

  Building a 601 XL.

  Do not archive.



Dan Lykowski <engineerguy3737(at)yahoo.com> wrote:

   	  Quote: 	
		  --> Zenith-List message posted by: Dan Lykowski 



It finally happened. After 8 months of being packed

away from  my move, I was able to get my kit out and

start drilling some holes!



I was planning on scratch building the rest of my

plane. Whats the cheapest place for aluminum these

days? I know I could save on shipping by going with

Wicks since there is one nearby, but I don't know if

the cost of shipping is compareable to what I would be

saving by going somewhere else.



Thanks,

Dan Lykowski

Dynon Avionics



Do Not Archive



	


  [quote][b]

engineerguy3737(at)yahoo.
Guest

Posted: Wed Sep 20, 2006 10:39 am Post subject: It finally happened!

I am building a 601. I've had the tail kit for just over a year now. Between the move and just being busy I haven't had a lot of free time to work on it.



I live in the north Seattle area. The Wicks I am talking about is on the Arlington airport. (Location of EAA NW fly-in)

They told me they were willing to bring up whatever I need in their supply truck as long as I don't mind waiting a few weeks. 



I work for Dynon Avionics as a software engineer, so feel free to ask questions. I will do my best to answer them, or find someone who can.



Thanks,

Dan Lykowski

Dynon Avionics



Do Not Archive

 [quote][b]

Gig Giacona

Joined: 10 Jan 2006
Posts: 1416
Location: El Dorado Arkansas USA

Posted: Wed Sep 20, 2006 1:33 pm Post subject: Dynon and Covair

Glad to have you in the forum and sorry to hijack the thread but William Wynne praised the Dynon products and mentioned that you guys might be coming out with a probe kit for his Corvair engine. Any word on the status of that.

[quote="engineerguy3737(at)yahoo."]



I am building a 601. 



<SNIP>

I work for Dynon Avionics as a software engineer, so feel free to ask questions. I will do my best to answer them, or find someone who can.



Thanks,

Dan Lykowski

Dynon Avionics



Do Not Archive

  	  Quote: 	
		  [b]

_________________
W.R. "Gig" Giacona
601XL Under Construction
See my progress at www.peoamerica.net/N601WR

engineerguy3737(at)yahoo.
Guest

Posted: Wed Sep 20, 2006 2:18 pm Post subject: It finally happened!

We don't plan on coming out with a probe, he did misquote a little.



For those who don't know what this is about.. 

WW's feeling is that directly coupling the tach input onto the coil is a bad idea that could cause the engine to stop, if the coil shorted to ground.



Our electrical engineers suggest attaching a very large resistor between the Dynon and the coil, attached directly to the coil.

This would work, and should by all means be safe to fly. The only possibility of fault is if the reisistor shorts which is highly unlikely.

Even if the wires break, the resistor will still not allow enough current to flow to stop the engine.



But, the research I am doing (since I am the one with the Corvair engine) is looking in to inductive coupling off of a spark plug wire.

The Dynon requires very very little current to drive the tach, in the millivolts if I remember correctly. 

I am planning on using an Op amp to amplify the inductive signal picked up off the wires to the correct voltage that I need. Since the Dynon is just looking for a square wave it should be a pretty straight forward circuit.



Dan Lykowski

Dynon Avionics

---

craig(at)craigandjean.com
Guest

Posted: Wed Sep 20, 2006 2:45 pm Post subject: It finally happened!

Why not use the MSD GMR pick-up? Electrically isolated and easier to use

than a gear tooth pick-up.



"Convert tachometer signals without cutting or splicing. These MSD tach

signal GMR pickups simply attach, with no splicing or cutting, to a

current-carrying wire, and turn that information into a 12 V rpm signal.

That signal can then be used to activate a shift light, rpm activation

switch, or tachometer."



www.msdignition.com/2006/06-22.htm



Part number MSD-8918 at www.summitracing.com



-- Craig

p.mulwitz(at)worldnet.att
Guest

Posted: Wed Sep 20, 2006 3:18 pm Post subject: It finally happened!

Hi Dan,



I read your description of a tachometer pickup and had a thought or 

two for you to consider.



First, I wouldn't bother with the op amp - it sounds like too much 

trouble.  I would make an inductive pickup of a couple of turns of 

wire around your source (spark plug wire?) and adjust the number of 

turns until you get the desired voltage.  I would also recommend a 

clamping diode across your coil to prevent your signal from going 

negative - that could hurt your input circuit big time (ask your EE 

friends to explain latch-up for you).  Also, if you are worried about 

over-voltage you could use a zener diode in parallel with the 

clamping diode to limit the maximum voltage.  In all cases, your 

circuit should not experience much power at all.



The above protections would probably be a good idea for input to your 

op-amp or for direct input into the display system.



Good luck,



Paul

XL fuselage

At 03:17 PM 9/20/2006, you wrote:

[quote]



We don't plan on coming out with a probe, he did misquote a little.



For those who don't know what this is about..

WW's feeling is that directly coupling the tach input onto the coil 

is a bad idea that could cause the engine to stop, if the coil 

shorted to ground.



Our electrical engineers suggest attaching a very large resistor 

between the Dynon and the coil, attached directly to the coil.

This would work, and should by all means be safe to fly. The only 

possibility of fault is if the reisistor shorts which is highly unlikely.

Even if the wires break, the resistor will still not allow enough 

current to flow to stop the engine.



But, the research I am doing (since I am the one with the Corvair 

engine) is looking in to inductive coupling off of a spark plug wire.

The Dynon requires very very little current to drive the tach, in 

the millivolts if I remember correctly.

I am planning on using an Op amp to amplify the inductive signal 

picked up off the wires to the correct voltage that I need. Since 

the Dynon is just looking for a square wave it should be a pretty 

straight forward circuit.



Dan Lykowski

Dynon Avionics

---

601zv(at)ritternet.com
Guest

Posted: Wed Sep 20, 2006 5:59 pm Post subject: It finally happened!

For those of us that aren't very electron literate, what size resister is 

"very large"? And please keep us updated on the inductive coupling!



---

engineerguy3737(at)yahoo.
Guest

Posted: Wed Sep 20, 2006 10:12 pm Post subject: It finally happened!

Craig,

  That is exactly what I was looking for. I pick one

up and give it a shot. I'll let everyone know what I

find.



Oh.. And I know about using a zener. (I'm a software

guy with just enough EE to be dangerous  ) But, if

this pickup that Craig pointed out works, I won't have

to do anything other than post a link. Thanks for the

info guys.



Dan Lykowski

Dynon Avionics



--- Craig Payne <craig(at)craigandjean.com> wrote:



 	  Quote: 	
		   

 <craig(at)craigandjean.com>

 

 Why not use the MSD GMR pick-up? Electrically

 isolated and easier to use

 than a gear tooth pick-up.

 

 "Convert tachometer signals without cutting or

 splicing. These MSD tach

 signal GMR pickups simply attach, with no splicing

 or cutting, to a

 current-carrying wire, and turn that information

 into a 12 V rpm signal.

 That signal can then be used to activate a shift

 light, rpm activation

 switch, or tachometer."

 

 www.msdignition.com/2006/06-22.htm

 

 Part number MSD-8918 at www.summitracing.com

 

 -- Craig

 

 



 browse

 Subscriptions page,

 FAQ,

 http://www.matronics.com/Navigator?Zenith-List



 Web Forums!

 Admin.



 

 

 

 


	




__________________________________________________

naumuk(at)alltel.net
Guest

Posted: Thu Sep 21, 2006 2:42 pm Post subject: It finally happened!

Dan-

    Forgive my ignorance, but speaking of pickups, does the Dynan connect to 

a standard pitot/static tube, something task dedicated, or is it totally 

independent?

Bill Naumuk

HDS Fuselage

Townville, Pa

engineerguy3737(at)yahoo.
Guest

Posted: Thu Sep 21, 2006 6:44 pm Post subject: It finally happened!

Bill,

 The Dynon needs to be connected to a pitot/static

system. Which brand/kind of system is up to you.

However, if you want to get angle of attack, you have

to use the pitot that we sell.



Dan Lykowski

Dynon Avionics



--- Bill Naumuk <naumuk(at)alltel.net> wrote:



 	  Quote: 	
		   

 <naumuk(at)alltel.net>

 

 Dan-

     Forgive my ignorance, but speaking of pickups,

 does the Dynan connect to 

 a standard pitot/static tube, something task

 dedicated, or is it totally 

 independent?

 Bill Naumuk

 HDS Fuselage

 Townville, Pa 

 

 

 



 browse

 Subscriptions page,

 FAQ,

 http://www.matronics.com/Navigator?Zenith-List



 Web Forums!

 Admin.



 

 

 

 


	




__________________________________________________

601zv(at)ritternet.com
Guest

Posted: Fri Sep 22, 2006 3:30 am Post subject: It finally happened!

What do you do if you want heated pitot? Hook heated pitot to Dynon and use 

separate alternative AOA? (Since Dynon hints of developing a heated AOA 

pitot but declines to project what year it might be available).



---

Gig Giacona

Joined: 10 Jan 2006
Posts: 1416
Location: El Dorado Arkansas USA

Posted: Fri Sep 22, 2006 12:04 pm Post subject: Re: It finally happened!

Actually I misquoted him what he wrote was...



http://www.flycorvair.com/hangar0706.html

On the horizon, the highly reputable Dynon company has said they're willing to develop a Corvair specific EIS unit. 



--------------------------------------------------------------------

But I'm glad to hear that you are going to use the Corvair. It'll be nice to have someone inside Dynon. I've been researching systems like yours for 3 years now and IMHO Dynon has the best bang for the buck. Which is the same reason I'm going with a Corvair.



Now we just have to make sure they play well together.



Just for the record the most recent announced updates really pushed you guys to the front of the line. 

 	  engineerguy3737(at)yahoo. wrote: 	
		  We don't plan on coming out with a probe, he did misquote a little.

---

_________________
W.R. "Gig" Giacona
601XL Under Construction
See my progress at www.peoamerica.net/N601WR

engineerguy3737(at)yahoo.
Guest

Posted: Fri Sep 22, 2006 1:37 pm Post subject: It finally happened!

Gig,

 I know what WW site says on his site.. 

I believe what was said was, "Dynon does not officially support the Corvair engine, but is willing to help anyone who wants to get it working."

But I would have to dig up the actual email.



But yes, since I am building a Corvair, I am looking in to it.

I think the best bet so far is the link that was posted a few days ago..

http://www.msdignition.com/2006/06-22.htm



I will be ordering one to try out as soon as my wife lets me have some money.



Dan Lykowski

Dynon Avionics



---

naumuk(at)alltel.net
Guest

Posted: Fri Sep 22, 2006 2:22 pm Post subject: It finally happened!

Dan-

    Good news. Now I don't have to putty up all the holes I drilled in my 

outboard wing for the pick-up tubes! I figure a the weight saving of a Dynon 

system will offset all those extra A5 instead of A4 rivets.

Bill Naumuk

HDS Fuselage

Townville, Pa

---

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