KR>Do we need a tail wheel lock on a KR?

[Dana Overall]

>From: "Dan Heath" 
>
>No, but you need to use expansion springs. The compression springs are way
>too stiff, ask me how I know. Also, use springs, don't set it up with a
>direct connect. AS sells a nice compression spring set.


Here' something to look at if you can make the geometry work.  This is an 
aftermarket spring replacement unit that proports to achieve dramatic 
improvement in the feel transferred to the rudder pedals.  The length from 
rudder horn to steering link is 13.25".


http://www.iwantarocket.com/



Dana Overall
1999 & 2000 National KR Gathering host
Richmond, KY i39
RV-7 slider, Imron black, "Black Magic"
Finish kit
13B Rotary. Hangar flying my Dynon.
http://rvflying.tripod.com/aero1.jpg
http://rvflying.tripod.com/aero3.jpg
http://rvflying.tripod.com/blackrudder.jpg
do not archive

_
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KR>Do we need a tail wheel lock on a KR?

[Stephen Jacobs]

Here' something to look at if you can make the geometry work.


Looks like $124 well spent (http://www.iwantarocket.com/ ).

Obviously works, but I need to go back and figure out how - only has a
connection on one side?

What the hell is a Harmon Rocket II?

KR>Do we need a tail wheel lock on a KR?

[intrepid...@juno.com]

> "Dan Heath"  writes:
> No, but you need to use expansion springs. The compression
> springs are way too stiff, ask me how I know. Also, use springs,
> don't set it up with a direct connect. AS sells a nice compression
> spring set.

  The compression springs offer intrinsic safety against a broken
  spring leaving the tailwheel out of control.  Even with the spring
  broken, the end attachments are interleaved and the line secure.

  Pet stores sell these springs quite cheaply for use on dog tie-out
  chains to protect the pet from the shock of reaching the end of
  the chain.  They come in different sizes and compression force
  according to the size of the pet ( or tailwheel ... :).

  A tailwheel lock also provides a backup to a spring failure, and
  may even prevent landing forces and accelerations or oscillations
  from *causing* the springs to break. 

  How might such a fail-safe be accomplished with an expansion
  spring ?   A slip rod or stretch-limiting wire/cable thru the spring ?

  Art Cacella   1970 American AA-1  N6155L  "Dinkie"
  1972 KR-1 Plans, still not started 
  ( but four metal homebuilts underway )
  Winston-Salem, NC






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KR>Do we need a tail wheel lock on a KR?

[intrepid...@juno.com]

> "Stephen Jacobs"  writes:
> What the hell is a Harmon Rocket II?

  A derivitive of a Van's RV-4, the Harmon Rocket has a honkin'
  big Lycoming IO-540 ( 300+ hp) engine and constant speed
  prop on the nose.   The "II" comes from a slight widening and
  lengthening of the standard Harmon Rocket fuselage; maybe
  taller gear legs for a bigger prop also.

  I think.  Van has so many models now that I get confused.
  ( ok, I =stay= confused anyway ... )

  Art Cacella   1970 American AA-1  N6155L  "Dinkie"
  1972 KR-1 Plans, still not started 
  ( but four metal homebuilts underway )
  Winston-Salem, NC


The best thing to hit the Internet in years - Juno SpeedBand!
Surf the Web up to FIVE TIMES FASTER!
Only $14.95/ month - visit www.juno.com to sign up today!

KR>Do we need a tail wheel lock on a KR?

[Virgil Salisbury]

Art, have 1972/3? plans. Reciept # 876 ? Fus done, spars done.
Willget the 
spars installed sometime, Virg

On Thu, 19 Feb 2004 17:39:49 -0500 intrepid...@juno.com writes:
> > "Dan Heath"  writes:
> > No, but you need to use expansion springs. The compression
> > springs are way too stiff, ask me how I know. Also, use springs,
> > don't set it up with a direct connect. AS sells a nice 
> compression
> > spring set.
> 
>   The compression springs offer intrinsic safety against a broken
>   spring leaving the tailwheel out of control.  Even with the 
> spring
>   broken, the end attachments are interleaved and the line secure.
> 
>   Pet stores sell these springs quite cheaply for use on dog 
> tie-out
>   chains to protect the pet from the shock of reaching the end of
>   the chain.  They come in different sizes and compression force
>   according to the size of the pet ( or tailwheel ... :).
> 
>   A tailwheel lock also provides a backup to a spring failure, and
>   may even prevent landing forces and accelerations or oscillations
>   from *causing* the springs to break. 
> 
>   How might such a fail-safe be accomplished with an expansion
>   spring ?   A slip rod or stretch-limiting wire/cable thru the 
> spring ?
> 
>   Art Cacella   1970 American AA-1  N6155L  "Dinkie"
>   1972 KR-1 Plans, still not started 
>   ( but four metal homebuilts underway )
>   Winston-Salem, NC
> 
> 
> 
>  
> 
> 
> The best thing to hit the Internet in years - Juno SpeedBand!
> Surf the Web up to FIVE TIMES FASTER!
> Only $14.95/ month - visit www.juno.com to sign up today!
> 
> ___
> to UNsubscribe from KRnet, send a message to krnet-le...@mylist.net
> please see other KRnet info at http://www.krnet.org/info.html
> 
> 


Virgil N. Salisbury - AMSOIL
www.lubedealer.com/salisbury
Miami ,Fl

KR>Do we need a tail wheel lock on a KR?

[Stephen Jacobs]

Harmon Rocket II - derivative of a Van's RV-4, the Harmon Rocket has a
honkin' big Lycoming IO-540 ( 300+ hp)

Thanks Art.  I trained on the AA1 "Lynx" in 1977 - lovely little bird
from Jim Bede.