Torque reaction is common in any reciprocating system. Generally speaking,
you get torque reaction when the rotating mass is changing velocity
(applying throttle would be an example). I am more familiar with high
performance cars and motorcycles, but the energy (torque) has to have
something to
Anyone who has done some searching on the net for KRs knows that there are
several airplanes - antiques and such -that use the letters "KR" in their
model names - and are completely different than the little Ken Rand
homebuilt airplanes. Some have some pretty big engines where torque roll
I have a standard KR2 with 100 HP with 1.6: 1 belt drive. 60 inch blade prop
and NEVER experienced at problem after take off. She fly's like nothing
else. Beautiful.
The only problem is keeping her straight with full Right rudder plus R brake
till about 20 to 25 knots due to that extra torque.
The other thing to consider too, is that at first it might seem cheaper, but
when you are done with it all, the Subie will cost you more than Vair. I've
heard anything from 12K to 15K if you are buying a PSRU and doing most the
other work yourself.
And don't forget, just because it has radiators
I found this on hanger doors in case someone else is interested.
http://ultimatedoor.homestead.com/ultimate.html
Regards,
Myron (Dan) Freeman
Indpls, Ind. 46203-3570
Home of the Indy 500,
the World's most famous
auto race.
mfreem...@indy.rr.com
Check out and join the
Dave,
I know of five KRSuper2 builders that will be at Oshkosh. I think all are
planning on using the Corvair. They are myself, Chris Anderson, Paul
Fincato,
David McCauley and Ted Sanders. Scott Watts can not make it this year, but
passed these names on to me. Let us meet at the KR Forum on
Hi all,
I'm starting to build the instrument panel.
Of course, there are always questions that pops up, where the answer is
dependant on a lot of variables. I plan to build the panel from 3mm (might
be 2.8, I'm not sure) plywood, and I need to know what thickness is required
to ensure the panel
[quote] I would have to say an engine that weighs more than the aircraft
itself is very unlikely. Not to mention how would one build a KR with enough
ground clearance for that 10 foot prop an R-985 has to swing?
Kind of reminds me of the Gee Bee Racer.
?Regards,
Myron (Dan) Freeman
I would have to say an engine that weighs more than the aircraft itself is
very unlikely. Not to mention how would one build a KR with enough ground
clearance for that 10 foot prop an R-985 has to swing?
My guess is it is some sort of typo on Wiki.
A P R-985 weighs in at something around 650 to
Hi, interesting, on Wiki it is mentioned that the R-985 is used on the
KR-range of experimentals.
Regards.
JC
Disclaimer; Yada yada yada...
-Original Message-
From: krnet-boun...@mylist.net [mailto:krnet-boun...@mylist.net] On Behalf
Of Larry Flesner
Sent: 09 July 2009 14:22
To: KRnet
I have built up a small but complete flight testing regime on two different
KR-2's and have never had anything remotely like a torque induced tendency
to roll. Both of my planes have extra engine. One is a Subaru, and it is
as tame and gentle as a little girl, the other has a Saturn engine and
I do believe that the Sube will runs more economically then the 'vair up
to a point.
The extra weight will require more fuel to pull the plane through the
air and depending on the engine and the amount of power it's putting
out, it will probably turn out fairly equally.
On a related note
Isn't the Subaru, water cooled? Water cooled engines will run much more
economically than will air cooled. Air cooled engines use air, oil, and
fuel to keep them cool. So I have heard.
See N64KR at http://KRBuilder.org - Then click on the pics
See you at the 2009 - KR Gathering in Mt. Vernon,
Probably the biggest reason to avoid higher-powered engines in KR's is
the problem with immediate and fatal torque rolls once the wheels leave
the runway. Using a PSRU with a Suburu and its extra torque this
tendency would even be worse.
When KR's just had VW's, torque rolls after takeoff were
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