KR> Landing Helper Idea

2011-07-15 Thread David Boyer
This is a basic idea to give you the distance from touching down and if 
you dipping a wing.

http://www.backupsensorshop.com/Car_Backup_SD2.asp

This is a basic backup alarm with the ability to measure distance.

On your final leg you would turn it on and get a visual distance and 
audible tone all the way to landing.

This would be simply to do, just hook the wire that goes to reverse wire 
to a power switch and turn it on.

Since we flare to land (depending if your a taildragger) you can mount 
the sensors at a countered flare angle or put them

on a ball mount so they always hang down regardless of the plans angle.

I think this would be helpful for the landing gear slammers and the 
occasional miss judge landings.

If the sensors are wing mounted then you can see if you dipping a wing 
upon landing.

I hope this is helpful for us new guys. Thanks, David Boyer


KR> Simply Folding Wing

2011-06-21 Thread David Boyer
I have been talking with badbob0007  (Bob Johnson) and we both would 
like the ability to fold our wings up and directly over the top of the 
canopy for transport.
This is a basic idea on a double pivot design so the wing can have 
enough clearance to fold.

http://i1081.photobucket.com/albums/j354/davidpob/wing.jpg

I hope this will be useful. Thanks  David Boyer



KR> Zenith Carbs and source reference

2010-04-08 Thread David Boyer
Ok, we all know what Cam, crank and setup to use for our corvairs. Mark 
Langford and William Wynne have gone through a lot of trouble doing the 
R for us and I wish to thank them. However when it comes to 
carburetors for the corvair there is some questions that need answered. 
The certified carbs are very expensive and hard to find while Harley CVO 
carbs and Zenith carbs are available and reasonable.  So I'm looking 
hard at the Zenith Carb and what the numbers really mean. On forums the 
Zenith 1821 carb is being called a number 68 and 267 Here is a chart to 
show you the size engines for these carbs. Just click on the updraft 
carb 68 or 267 to see the specs.

http://www.leklein.com/Zenith-Fuel/index.htm

Now here is a chart to see how these carburetor numbers are related:

http://www.lotus-equip.com/Zenith%20Parts%20Reference.htm

The numbers you are after is 13922, 14992, 14995 and 14998 depending on 
your engine setup and size. These updraft carbs are dirt simple and can 
be adjusted easily to run your corvair. If you live in the woods like I 
do then here is the cross reference chart to get a carb from a tractor 
dealer:

http://www.lotus-equip.com/zenith.htm

Now here is a dealer like www.greatplains.com 
<http://www.greatplains.com/> that carries Zenith carbs for aircraft:

http://www.hummelengines.com/pricelist.pdf

And a small article on  carbs that contains good information:

http://users.lmi.net/~ryoung/Sonerai/Carbs.html

http://clubs.hemmings.com/clubsites/DurANT/Tech/Zenith-updated.PDF

These updraft carburetors don't like ram air or high pressure and need 
to be setup with available carb heat for flight safety.

Here is the cheapest I found them:

http://clubs.hemmings.com/clubsites/DurANT/Tech/Zenith-updated.PDF

I hope this helps out in trying to find a carburetor for your project. 
David Boyer


KR> Great Landing Gear

2009-11-08 Thread David Boyer
This idea is from Norman Michaud who had this setup on his Kr2s. I'm posting 
the info for builders who need land gear.
The leaf spring from 1985 Chevy astro or GMC Safari are fiberglass and make 
great landing gear. They are light, cheap
and available almost anywhere. Each spring is 60" long and tapers to the middle 
and will male a set of landing gear per spring. 
So a set of springs is around  $60.00 and makes two sets of gear. They mount on 
the spar like normal Diehl gear and much cheaper.
This setup is what i'm doing with my large plastic easter eggs i'm using for 
wheel pant molds.David Boyer