Today's Message Index:
----------------------
1. 11:06 AM - TR-1 Nose gear leg - again (Hans Christian Erstad)
2. 11:18 AM - Re: TR-1 Nose gear leg - again (Robert Reed)
3. 01:17 PM - Re: TR-1 Nose gear leg - again (Galin Hernandez)
4. 02:10 PM - Re: TR-1 Nose gear leg - again (Alfred Rosa)
5. 02:16 PM - Re: TR-1 Nose gear leg - again (Alfred Rosa)
6. 07:34 PM - Re: TR-1 Nose gear leg - again (Mark Kettering)
Message 1
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| Subject: | TR-1 Nose gear leg - again |
I have the original design round tube nose gear leg. As I remember it was
said it was heat treated, but I no not really know .
Since all the bad experiences with the nose grear, I have been careful, and
only operated from asphalt runways. However, on the weekend I flew to an
airfield with grass runway. When arriving home I discovered that the leg
have been bent. The straight portion of the leg is still straight, so it
must be the bend at the lower end that have been bent further.
The bending is not much, and I could keep on flying, but I should really do
something. Have it checked for cracking, and then keep on flying (never from
grass again) or have it bent back to its original chape, or have the bent
part replaced, or..............
This topic have been covered well in the past, but if anyone have some
experience to share with me?
regards
Hans Christian
Message 2
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| Subject: | Re: TR-1 Nose gear leg - again |
Hans,=0A-=0AI am no expert on this but bending it back sounds like a very
bad idea to me.- Any bending of parts like the landing gear puts stress
on the metal and should be followed by inspection and heat treating. =0A-
=0AJust my opinion, no scientific facts.=0A-=0ABob Reed=0A =0A=0A________
________________________=0A From: Hans Christian Erstad <hans.erstad@gmail.
com>=0ATo: kis-list@matronics.com =0ASent: Wednesday, August 7, 2013 1:06 P
M=0ASubject: KIS-List: TR-1 Nose gear leg - again=0A =0A=0A=0AI have the o
riginal =0Adesign round tube nose gear-leg. As I remember it was said it
was heat =0Atreated, but I no not really know . =0A- =0ASince all the bad
experiences with the nose grear, =0AI have been careful, and only operated
from asphalt runways. However, on the =0Aweekend I flew-to-an airfield
with-grass runway. When arriving =0Ahome I discovered that the leg have
been bent. The straight portion of the leg =0Ais still straight, so it-mu
st =0Abe-the bend at the lower end that have been bent =0Afurther. =0A-
=0AThe bending =0Ais not much, and I could keep on flying, but I should re
ally do something. Have =0Ait checked for cracking, and then keep on flying
(never from grass again) or =0Ahave it bent back to its original chape, or
have the bent part replaced, =0Aor.............. =0A- =0AThis topic have
been =0Acovered well in the past, but if anyone have some experience to sh
are with =0Ame? =0A- =0Aregards =0AHans =0AChristian
Message 3
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| Subject: | Re: TR-1 Nose gear leg - again |
If this is a TR4, I would recommend replacing it with the newer version.
The TR4 has a much heavier nose weight and I find even the newer version is
barely strong enough. I don't know about the TR1.
Galin
On Wed, Aug 7, 2013 at 2:06 PM, Hans Christian Erstad <hans.erstad@gmail.com
> wrote:
> **
> I have the original design round tube nose gear leg. As I remember it was
> said it was heat treated, but I no not really know .
>
> Since all the bad experiences with the nose grear, I have been careful,
> and only operated from asphalt runways. However, on the weekend I
> flew to an airfield with grass runway. When arriving home I discovered that
> the leg have been bent. The straight portion of the leg is still straight,
> so it must be the bend at the lower end that have been bent further.
>
> The bending is not much, and I could keep on flying, but I should really
> do something. Have it checked for cracking, and then keep on flying (never
> from grass again) or have it bent back to its original chape, or have the
> bent part replaced, or..............
>
> This topic have been covered well in the past, but if anyone have some
> experience to share with me?
>
> regards
> Hans Christian
>
>
Message 4
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| Subject: | Re: TR-1 Nose gear leg - again |
[image: Inline image 1]Galin,
It appears that you have an early TR4 nose gear with a bent continuous
tube. My gear is a later and I believe much stronger TR 4 gear design. I
think Lyle Hendricks made these but am not sure of this. If you bend the
distortion back it will be considerably weaker and will distort again maybe
even on paved landing strips.
My advice is to have the new design made up and replace the original nose
gear.
Al
On Wed, Aug 7, 2013 at 2:06 PM, Hans Christian Erstad <hans.erstad@gmail.com
> wrote:
> **
> I have the original design round tube nose gear leg. As I remember it was
> said it was heat treated, but I no not really know .
>
> Since all the bad experiences with the nose grear, I have been careful,
> and only operated from asphalt runways. However, on the weekend I
> flew to an airfield with grass runway. When arriving home I discovered that
> the leg have been bent. The straight portion of the leg is still straight,
> so it must be the bend at the lower end that have been bent further.
>
> The bending is not much, and I could keep on flying, but I should really
> do something. Have it checked for cracking, and then keep on flying (never
> from grass again) or have it bent back to its original chape, or have the
> bent part replaced, or..............
>
> This topic have been covered well in the past, but if anyone have some
> experience to share with me?
>
> regards
> Hans Christian
>
>
Message 5
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| Subject: | Re: TR-1 Nose gear leg - again |
Hans,
Now I realize that this is a TR1 we are talking about so disregard my first
post. Thing to do is to have an identical tube made up of heavier gauge
4130 steel tube. It would be better to have the welded angle rather than
the bent one. In any case, don't attempt to bend the gear back to it's
original shape. It will only make it weaker.
Al
On Wed, Aug 7, 2013 at 5:10 PM, Alfred Rosa <fredorosa@gmail.com> wrote:
> [image: Inline image 1]Galin,
>
> It appears that you have an early TR4 nose gear with a bent continuous
> tube. My gear is a later and I believe much stronger TR 4 gear design. I
> think Lyle Hendricks made these but am not sure of this. If you bend the
> distortion back it will be considerably weaker and will distort again maybe
> even on paved landing strips.
>
> My advice is to have the new design made up and replace the original nose
> gear.
>
> Al
>
>
> On Wed, Aug 7, 2013 at 2:06 PM, Hans Christian Erstad <
> hans.erstad@gmail.com> wrote:
>
>> **
>> I have the original design round tube nose gear leg. As I remember it was
>> said it was heat treated, but I no not really know .
>>
>> Since all the bad experiences with the nose grear, I have been careful,
>> and only operated from asphalt runways. However, on the weekend I
>> flew to an airfield with grass runway. When arriving home I discovered that
>> the leg have been bent. The straight portion of the leg is still straight,
>> so it must be the bend at the lower end that have been bent further.
>>
>> The bending is not much, and I could keep on flying, but I should really
>> do something. Have it checked for cracking, and then keep on flying (never
>> from grass again) or have it bent back to its original chape, or have the
>> bent part replaced, or..............
>>
>> This topic have been covered well in the past, but if anyone have some
>> experience to share with me?
>>
>> regards
>> Hans Christian
>>
>>
>>
>>
>>
>
>
Message 6
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| Subject: | Re: TR-1 Nose gear leg - again |
The main issue with the nose gear is the main gear location!
On most trigear aircraft the main gear is placed so that about 85% to 92% of the
load is carried by the main gear and only 8% to 15% is carried by the nose gear
with a loaded aircraft. On the TR-1 with the stock main gear location the
nose gear has about 30% of the load! Twice what it should and twice what the
nose gear is designed to hold.
So if you have not done so already move your main gear forward. The simplest way
is to angle it forward by making a flox wedge shim between the gear and the
gear tunnel. Not only will this reduce the load on your nose gear it will make
takeoffs and landing much more smooth.
If your nose loads are what they should be and you land on the mains you should
have no problem with the original nose gear.
Regards,
Mark Kettering
-----Original Message-----
From: Hans Christian Erstad
Sent: Aug 7, 2013 2:06 PM
Subject: KIS-List: TR-1 Nose gear leg - again
I have the original
design round tube nose gear leg. As I remember it was said it was heat
treated, but I no not really know .
Since all the bad experiences with the nose grear,
I have been careful, and only operated from asphalt runways. However, on the
weekend I flew to an airfield with grass runway. When arriving
home I discovered that the leg have been bent. The straight portion of the leg
is still straight, so it must
be the bend at the lower end that have been bent
further.
The bending
is not much, and I could keep on flying, but I should really do something. Have
it checked for cracking, and then keep on flying (never from grass again) or
have it bent back to its original chape, or have the bent part replaced,
or..............
This topic have been
covered well in the past, but if anyone have some experience to share with
me?
regards
Hans
Christian
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