I test flew Dennis Pointers KR. It had a 2180 with Dan Deils turbo he pulled 
off old blue. I hit 200+ on the third flight. I believed the weight came in at 
625 lbs. When I sold Neils KR it had 4 different engines by then. I started 
with an 1835, then a 2180 then a Continental 85  and finely an O200. Empty 
weight started at 495 lbs and ended up at 590. No starter, alt. or any other 
accessory. I used a solar charger in the back window to keep a battery up.
 

--- On Sat, 1/2/10, Mark Langford <n5...@hiwaay.net> wrote:


From: Mark Langford <n5...@hiwaay.net>
Subject: Re: KR> Neil's article
To: "KRnet" <kr...@mylist.net>
List-Post: krnet@list.krnet.org
Date: Saturday, January 2, 2010, 7:54 AM


Dan Heath wrote:

> Now, I am really having to give more thought to adding another 80+ pounds 
> for the
> Corvair engine that Roy is building for me?????

Dan, first off, I think it's probably only about 60 pounds rather than 80, 
because the Corvair with everything firewall forwarded needed to fly (except 
the mount and prop) is only about 245-250 pounds.  It'd be interesting to 
hear that number for your VW when you remove it. But if you get 50% more 
power in an airplane by only adding 10% more weight, I don't see how you 
could go wrong, other than fuel a slight increase in consumption (given the 
same speed).

Maybe I have no credibility saying this, as I've never owned a lightweight 
KR with a VW engine in it, but I think having all that power of a Corvair 
out front makes the KR a LOT of fun!  The extra power you get, as well as 
the safety of 6 cylinders, makes up for a lot of sins in the weight 
department.  To me the engine weight isn't a factor when talking about 
fun-weight-ratio of having lots more power, whether it's from a Corvair or 
something else. That's one of the few things I disagree with in that 
article.  My guess is that Neil never flew behind a Corvair either.

Having said that, Roy Marsh could do 191 mph on a turbo VW.  I'd have to dig 
up that article to see what his empty weight was...

Mark Langford
N56ML "at" hiwaay.net
website at http://www.N56ML.com
--------------------------------------------------------


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