"the Ercoupe safety record would be improved if 
every nose gear was properly airworthy (without any tendency to shimmy or 
wobble)"

 

I can only agree, William.

 

 

Hartmut
 


To: [email protected]
From: [email protected]
Date: Sun, 1 Nov 2009 17:04:11 -0600
Subject: Re: [ercoupe-tech] Observation on snubber cable versus drag




Hi Fred,

Since you tried removing the snubber for half a year, it is undeniable that 
you had strongly "imprinted" the effect(s) of the snubber into your "comfort 
zone".  I don't believe anyone could convincingly prove that a coupe
with a snubber in the hands of a pilot with meaningful coupe crosswind
experience is less safe than one without a snubber.  

Accordingly, others have suggested an "each to his own preference" 
approach to this subject in the past.  I continue to disagree.  

While any difference in oleo function or steering authority is unlikely to 
ever cause a pilot of your experience any grief, in your example I am 
uncomfortable with the apparent conclusion that a snubber is an 
appropriate response to nose strut "wobble".  Such a latent defect is not 
one I would want to use a snubber to suppress (and ignore).

My real concern is coupe newbies.  All are not equal in talent.  Operating a 
coupe with a snubber while initially gaining said "meaningful crosswind 
experience" involves added risk.  Those "more gifted" with intuitional pilot 
skills are unaffected.  "Built-in safety" margins are less for the "less 
gifted".

I remain unaware of any genuine performance or safety advantage resulting
from the installation of a snubber cable on any Ercoupe in good condition.

To put it another way (and to agree with Hartmut):  If it ain't broke, don't 
'fix it'.

My personal opinion is that the Ercoupe safety record would be improved if 
every nose gear was properly airworthy (without any tendency to shimmy or 
wobble) and non-original snubbers were removed upon change of owner.

Regards  

William R. Bayne
.____|-(o)-|____.
(Copyright 2009)

 -- 

On Nov 1, 2009, at 13:32, [email protected] wrote:


When I purchased my Coupe 4 years ago, it was slug slow (88 mph).  On 
Sid's recommendation I took off the cup landing lights on the landing 
gear and gained 5 mph, took off the tube gas caps on the wings and 
gained another 2 mph.  I was then up to 95 mph and enjoying the extra 
speed.  We then had a long chat about the snubber cable.  I took it off 
and gained another 2 mph, but I didn't like the way it landed.  The 
nose wheel hits much earlier (and faster) and it would have a tendency 
to wobble.  It took more work to make my landings feel good and I gave 
up on the snubber removal after 6 months. I don't have the faring on 
the nose but since I don't like the feel of no snubber landings, I 
don't plan on trying that one.  Sid is right, it does make for more 
speed but at a price.  I still like the snubber cable for holding the 
nose wheel off the runway longer.

Fred Lamkey                                       
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