Roger L Vavra
  • Male
  • West Bend, WI
  • United States
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Roger L Vavra's Blog

50 Hrs On My 601XLB

Posted on February 8, 2011 at 9:04am 2 Comments

I have 50 hrs on my 601 since the upgrade. I like it more and more. Have done some short cross countries with my wife and she just loves flying and taking picutures. The lycoming 0235C1B is running great with the addition of the Rotex throttle body carb. coupled with the E-Mag electronic ignition the engine starts instantly.I keep pushing the envelope on manuvers and the 601 responds great. The attached photo was taken by my wife over the cranberry marshes at harvest time near Tomah Wi.… Continue

Engine Specs.

Posted on November 20, 2009 at 10:06am 0 Comments

Type Engine Installed Lycoming 0235 C1B
E Mag Electonic Ignition, Warp Drive 3 Blade Ground Adjustable Prop.
2 Batteries, 2 Electric Fuel Pumps, Remote Oil Filter

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At 3:41pm on February 13, 2011, Terry Pender said…


Thanks for the W&B info. I'm guessing mine will be in that neighborhood. I'll let you know when I get the wings on.

Been working on the cowling for the last week or so. Should finish with the baffling tomorrow or next day.




At 11:34am on February 9, 2011, Terry Pender said…

Hi Roger

Thanks for the reply. And when you get to the airport I would like to know what your W&B sheet says. Was that weight after the mods?

I have not changed my starter yet, it has the 60 alternator, and I plan on using the McCauley prop (weight 19 lbs.) if I can. Do you know the weight of the Warp Drive, I could not find any info at their site about the weights.




At 6:03am on February 9, 2011, Terry Pender said…

Hi Roger

I'm using the o235-c2c and hope to fly early spring. My engine and prop was from a Grumman AA1B.

I have about 2 hrs. in the AMD 601 over at Holland, MI. and plan on getting another couple before I fly mine.

What did you W&B (nose, mains) come it at?




At 8:57am on May 24, 2010, David New said…
Hi Roger
I have been flying my 601HDS with Subaru for 6 years now. Am going to convert to 0235 lyc.
Was hoping to pick your brain about prop and performance. What diameter is you prop and your cruse and climb performance.
At 10:44pm on May 23, 2010, David New said…
Can you tell me what diamenter prop you have?
At 8:16pm on December 21, 2009, Roger L Vavra said…
William I live in West Bend Wi. However I fly out of the Dodge County Airport KUNU. The engine so far has been very reliable. I cruise at about 2200 rpm at 110 mph. But have not had it at 2350 rpm yet because I changed the pitch and the engine was running a little warm with the air restrictions I added to the cowling for cold weather flying. The pitch was encreased to get more mph. It lands great without the flaps. Fuel consumption is about 5 gal an hour. I use auto fuel. I have not taken off on sod yet. I am new to this blog to so I haven't figured it out also. Roger
At 6:25pm on December 21, 2009, Edward A. Hamilton said…
Roger. I added comments on my site--Where are you. I'm about 30 milles north of Atlantic City. Bill Campbell is near Erie, Pa Ed Hamilton
At 9:43am on November 27, 2009, Frederick said…
What are you getting for short field take off and sod short field take off length of run?
At 10:18am on November 21, 2009, William Campbell said…
Using bolts sounds like a good idea. I do not like to buck rivets.---
At 9:08am on November 21, 2009, William Campbell said…
I did use the lightweight starter and generator.
I had to send my accesory case to be machined to allow me to use the mechanical fuel pump. I too like the E Mags. Easy to time and the engine stars easily. Mine is the high compression engine. I too have the SS straightpipes. The highest that I have turned the engine up to is 2300, and it was indicating 128MPH air speed. I know that it will run at 2700 easily. I had to put the battery in the tail, along with some extra weights to get it to balance.
I am taking the wings off today.

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