two (2) rotax 185's with nacelle's and adjst props

Lazair Parts for sale

Postby JPXman » Tue May 10, 2005 6:19 pm

check it out pioneer or dead-rotaxers:

Pair ot 185's with nacelle's and ground adjustable props
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Postby Guest » Tue May 10, 2005 6:28 pm

Boy that is crank failure in the making for sure. Those are small crank engines. Look at those engine mounts ! Holes everywhere ! Swiss Cheese !
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Postby ozzie » Wed May 11, 2005 4:28 am

not knowing anything about the rotax 185, i take it that there are two types obviousley big and small crank is there any easy way to tell between the two without tearing them down? serial nos or such. not that there are many here in oz but i am looking at replacements for the pioneers and don't want to buy a dud or two as they turn up on several sites occassinally i saw one at the airflow site just today. thanks ozzie :o
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Postby Guest » Wed May 11, 2005 10:56 am

Oh come on. I can't believe you haven't seen this ?

Look in the crankshaft section

http://www.lazairforce.central5.com./
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Postby daffy1029 » Wed May 11, 2005 2:20 pm

Hi ozzie,
Would your wings be strong enough to support the Rotaxes? Did you have the through bolt modification done on your plane? If so, that would really increase the performance of your plane. With redrives even more.
I heard you did some test flights recently, so does it fly well? Always nice to hear new/old Lazairs back up in the air. I am hoping to get mine back up into the air after about 17 years. Daffy :D
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Postby ozzie » Wed May 11, 2005 4:28 pm

hi daffy. yes thru bolts were done years ago i also added a section of .020 over the .015 from the root to 18inches past the engine mount point on the L/Edge. if i added rotaxes i'd do the spar and root rib mods as well. the test flights went ok but i have to find a more suitable strip than the one were i'm at at the moment it has no outs lots of turbulance and uphill all the way. great hanger tho. rebuilding the trailer now. not having rotaxes i havn.t paid much attention to there probs the smallest rotaxes here in oz are the 277 ozzie
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Postby flyalaz » Wed May 11, 2005 4:45 pm

The carb caught my eye with the filter attached (?) somehow to it, and that tube on the top which kind of looks like a vent or possibly a primer attachment.
Anybody else have that kind of arrangement on their motors? That setup is new to me.

Karl
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Postby Chappy » Sat May 28, 2005 9:09 pm

FYI, guys, the two place Lazair prototype used an original, stock Series 1 wing - the one with the .016" skinned D-tube spar! IIRC, only the .020" cap mod was done under the engines to the root. I flew it with 185 Rotaxes, NGL Westlakes and electric start KFMs. Dale Kramer talked me into going up with him back in 1983 in horrible winds - he was testing carb mods on the KFMs and wanted to fly it "right now". He claimed he needed "ballast", and I was the only warm "ballast" available. That flight was one of the roughest, bouncing around flights I've ever experienced in ANY airplane. After that day, I've never had any concerns about my light, series 1 wings!

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