Today's Message Index:
----------------------
1. 07:47 AM - Re: Balance weights on Hartzell CS prop hub (Fred Williams, M.D.)
2. 08:27 AM - Re: Re: 2006X oil cooler question (Don McDonald)
3. 08:27 AM - Re: Balance weights on Hartzell CS prop hub (Bill Watson)
4. 08:38 AM - Re: Balance weights on Hartzell CS prop hub (Kelly McMullen)
5. 08:45 AM - Re: Balance weights on Hartzell CS prop hub (Jesse Saint)
6. 10:09 AM - Re: Balance weights on Hartzell CS prop hub (George, Neal Capt 505 TRS/DOJ)
7. 11:03 AM - Re: Balance weights on Hartzell CS prop hub (John J)
8. 12:01 PM - Re: Balance weights on Hartzell CS prop hub (Linn Walters)
9. 12:16 PM - Re: Balance weights on Hartzell CS prop hub (Linn Walters)
10. 05:13 PM - Re: Spot Messenger Share interest? (AirMike)
Message 1
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| Subject: | Re: Balance weights on Hartzell CS prop hub |
Bill,
I had my prop balanced after about 150 hrs. The weights actually went
in the holes on the flywheel. No more than a AN3 screw and a couple of
washers. You shouldn't need to do anything else with the prop itself.
Dr Fred.
On 3/15/2011 6:44 PM, Bill Watson wrote:
>
> A close examination of my (unused, unmounted) Hartzell prop hub, I see
> 2 screws safety wired together on the hubs, near where the prop shafts
> are mounted. What's strange is that there are 8 threaded screw holes,
> 2 pair at each prop shaft. But only 2 of the 8 are in place and
> safety wired.
>
> In the Owner's manual, they are called 'balance weights'. In one
> drawing it looks like a plate of some sort might be mounted under the
> screws. One other diagram 'suggests' safety wire. Otherwise, I can
> find no reference to them.
>
> Anyone know anything about this?
>
> I know this isn't enough information to easily picture this but I'm
> thinking someone is familiar enough to know what I'm talking about.
> It's weird to see 8 holes and only 2 screws.
>
> Bill Watson
>
>
Message 2
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| Subject: | Re: 2006X oil cooler question |
As far as I'm concerned all planes (but we really only care about our fello
w =0ARV10 guys) should have this valve.- I made my- own during the buil
d when I saw =0Athe temps other RV's were getting during the winter months.
.. 150 to 160 =0Adegrees.- With the valve you can literally dial in any o
il temp you want.... so =0AWHO wouldn't want that?=0ADon McDonald=0A=0A=0A
=0A=0A________________________________=0AFrom: orchidman <gary@wingscc.com>
=0ATo: rv10-list@matronics.com=0ASent: Tue, March 15, 2011 6:47:32 AM=0ASub
ject: RV10-List: Re: 2006X oil cooler question=0A=0A--> RV10-List message p
osted by: "orchidman" <gary@wingscc.com>=0A=0A=0ATim Olson wrote:=0A> =0A>
Today I installed the Nonstopaviation.com control valve, and ...=0A=0ASure
am looking forward to seeing your valve installation pictures.- This wint
er =0AI can't get my temps up above 170 and most of the time 160.- I also
have the =0A2006X.=0ALooks like I am going to have to install the valve al
so.=0A=0A--------=0AGary Blankenbiller=0ARV10 - # 40674=0A(N2GB Flying)=0A
=0A=0A=0A=0ARead this topic online here:=0A=0Ahttp://forums.matronics.com/v
- - - - - - - - - - - - -Matt Dralle, List Admin.
======0A=0A=0A
Message 3
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| Subject: | Re: Balance weights on Hartzell CS prop hub |
So it seems that the factory does some balancing of the new prop itself
(per Linn).
\
Then if the prop installation is balanced by whatever means, weights may
be applied to the engine flywheel.
Thanks Dr Fred.
On 3/16/2011 10:41 AM, Fred Williams, M.D. wrote:
> <drfred@suddenlinkmail.com>
>
> Bill,
>
> I had my prop balanced after about 150 hrs. The weights actually went
> in the holes on the flywheel. No more than a AN3 screw and a couple
> of washers. You shouldn't need to do anything else with the prop itself.
>
> Dr Fred.
>
Message 4
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| Subject: | Re: Balance weights on Hartzell CS prop hub |
What you are discussing is the difference between static balance, which
is done by factory or any prop shop when they service a prop which is
simply having prop balanced end to end about the center point; and
dynamic balance that is done on the aircraft with the engine running,
and will be different for every engine, for any difference in prop
clocking if it is changeable. A prop must have proper static balance
before you will be able to effectively do a dynamic balance.
On 3/16/2011 8:23 AM, Bill Watson wrote:
>
> So it seems that the factory does some balancing of the new prop
> itself (per Linn).
> \
> Then if the prop installation is balanced by whatever means, weights
> may be applied to the engine flywheel.
>
> Thanks Dr Fred.
>
> On 3/16/2011 10:41 AM, Fred Williams, M.D. wrote:
>> <drfred@suddenlinkmail.com>
>>
>> Bill,
>>
>> I had my prop balanced after about 150 hrs. The weights actually
>> went in the holes on the flywheel. No more than a AN3 screw and a
>> couple of washers. You shouldn't need to do anything else with the
>> prop itself.
>>
>> Dr Fred.
>>
>
>
Message 5
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| Subject: | Re: Balance weights on Hartzell CS prop hub |
As was mentioned, the manufacturer (and/or prop shop) will do a balance on the
prop before delivery, but the weights added to the ring gear are for a dynamic
balance, which balances the prop as mounted with the spinner and all of that
stuff on it.
do not archive
Jesse Saint
Saint Aviation, Inc.
jesse@saintaviation.com
C: 352-427-0285
F: 815-377-3694
On Mar 16, 2011, at 10:41 AM, Fred Williams, M.D. wrote:
>
> Bill,
>
> I had my prop balanced after about 150 hrs. The weights actually went in the
holes on the flywheel. No more than a AN3 screw and a couple of washers. You
shouldn't need to do anything else with the prop itself.
>
> Dr Fred.
>
> On 3/15/2011 6:44 PM, Bill Watson wrote:
>>
>> A close examination of my (unused, unmounted) Hartzell prop hub, I see 2 screws
safety wired together on the hubs, near where the prop shafts are mounted.
What's strange is that there are 8 threaded screw holes, 2 pair at each prop
shaft. But only 2 of the 8 are in place and safety wired.
>>
>> In the Owner's manual, they are called 'balance weights'. In one drawing it
looks like a plate of some sort might be mounted under the screws. One other
diagram 'suggests' safety wire. Otherwise, I can find no reference to them.
>>
>> Anyone know anything about this?
>>
>> I know this isn't enough information to easily picture this but I'm thinking
someone is familiar enough to know what I'm talking about. It's weird to see
8 holes and only 2 screws.
>>
>> Bill Watson
>>
>>
>>
>>
>>
>>
>
>
>
>
>
Message 6
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| Subject: | Balance weights on Hartzell CS prop hub |
True as far as it goes.
Not every engine that this prop will fit is equipped with a flywheel in
which to mount balance weights, and not everybody thinks the spinner
back-plate is the best place to be poking holes for balance bolts.
Neal
-----Original Message-----
So it seems that the factory does some balancing of the new prop itself
(per Linn).
\
Then if the prop installation is balanced by whatever means, weights may
be applied to the engine flywheel.
Thanks Dr Fred.
On 3/16/2011 10:41 AM, Fred Williams, M.D. wrote:
> <drfred@suddenlinkmail.com>
>
> Bill,
>
> I had my prop balanced after about 150 hrs. The weights actually went
> in the holes on the flywheel. No more than a AN3 screw and a couple
> of washers. You shouldn't need to do anything else with the prop
itself.
>
> Dr Fred.
>
Message 7
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| Subject: | Balance weights on Hartzell CS prop hub |
Does doing a static balance apply to all props, including wood?
John J
Message 8
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| Subject: | Re: Balance weights on Hartzell CS prop hub |
Putting balance weights on the flywheel will refine the balance done
with the prop weights, which is a static balance. I recommend everyone
get their prop balanced to reduce vibration which lessens wear/tear on
airframes and pilots alike. Put a clear glass of water on the
glareshield and see how big the ripples get. Do it again after the
balance job. See the results. Engine/prop vibrations are very
subjective when taken through the seat of your pants.
Linn
On 3/16/2011 10:41 AM, Fred Williams, M.D. wrote:
> <drfred@suddenlinkmail.com>
>
> Bill,
>
> I had my prop balanced after about 150 hrs. The weights actually went
> in the holes on the flywheel. No more than a AN3 screw and a couple
> of washers. You shouldn't need to do anything else with the prop itself.
>
> Dr Fred.
>
> On 3/15/2011 6:44 PM, Bill Watson wrote:
>>
>> A close examination of my (unused, unmounted) Hartzell prop hub, I
>> see 2 screws safety wired together on the hubs, near where the prop
>> shafts are mounted. What's strange is that there are 8 threaded
>> screw holes, 2 pair at each prop shaft. But only 2 of the 8 are in
>> place and safety wired.
>>
>> In the Owner's manual, they are called 'balance weights'. In one
>> drawing it looks like a plate of some sort might be mounted under the
>> screws. One other diagram 'suggests' safety wire. Otherwise, I can
>> find no reference to them.
>>
>> Anyone know anything about this?
>>
>> I know this isn't enough information to easily picture this but I'm
>> thinking someone is familiar enough to know what I'm talking about.
>> It's weird to see 8 holes and only 2 screws.
>>
>> Bill Watson
>>
>>
>>
>>
>>
>>
>
>
Message 9
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| Subject: | Re: Balance weights on Hartzell CS prop hub |
My experience says it's harder to get a good balance with a wooden prop
because it flexes more than a metal one. It can be done, just takes
longer, and you really need to know what RPM you cruise at most often as
RPM will make a difference. There are lots of other 'things' that make
a dynamic balance job harder too.
Linn
On 3/16/2011 2:00 PM, John J wrote:
> --> RV10-List message posted by: "John J"<n212pj@gmail.com>
>
> Does doing a static balance apply to all props, including wood?
>
> John J
>
>
Message 10
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| Subject: | Re: Spot Messenger Share interest? |
I just got an e-mail from Sportys Pilot Shop - They have the Spot for $149 with
a $50 rebate by Visa PPD card. That is the best deal that I have seen, plus it
is just in time for the Summer flying season ! Remember that you also need the
activation fee with is $100-$150/yr.
--------
See you OSH '11
Q/B - flying 1 yr+
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