[NSRCA-discussion] Did I make a mistake - engine mount ?

Sat Oct 7 12:21:57 AKDT 2006

----- Original Message ----- 
From: "Kelly Regan" <kelly.regan2 at verizon.net>
To: "NSRCA Mailing List" <nsrca-discussion at lists.nsrca.org>
Sent: Friday, October 06, 2006 1:55 PM
Subject: Re: [NSRCA-discussion] Did I make a mistake - engine mount ?


> Lance,
> I think we are on the same page...
>
> Assuming I have the nose ring installed properly I would:
>
> 1) Align the motor mount and drill oversize holes in the firewall.
> 2) Install blind nuts into a plywood ring that that will act as a large
> washer.
> 3) Insert the mounting bolts through the engine mount, through the 
> oversize
> holes in the firewall and into the plywood ring with the blind nuts
> attached.
> 4) Tighten the mounting bolts.
>
> This traps the firewall between the engine mount and the plywood ring with
> the blind nuts in it.
>
> The minor thrust angle adjustments can be made by loosening the mounting
> bolts and sliding the rear of the engine mount around a little.
>
> Does that sound correct ?
>
> Question: Will this work with the stiffer A type mount?
>
> Lance Van Nostrand wrote:
>> Kelly,
>> If I'm understanding the suggestion, the idea is to flex the mount a bit 
>> by
>> purposely misaligning the mount and teh nose ring.  Not a good idea for 
>> many
>> reasons.  For brevity, I won't list them.  If your nose ring is properly
>> mounted, it will keep the spinner in the right spot.  Moveing the back of
>> the mount around will give you some thrustline adjustment.  Several times
>> I've had to do this.  Just knock out the blind nuts and enlarge the mount
>> holes in the firewall.  Make 1/8" a/c ply hole covers with blind nuts in
>> them and loose mount the mount to them thru the firewall.  When you have 
>> the
>> new alignment, thin CA tack them in place then folllow with epoxy. 
>> You'll
>> have perfect alignment.
>> -Lance
>>
>> ----- Original Message ----- 
>> From: "Kelly Regan" <kelly.regan2 at verizon.net>
>> To: "NSRCA Mailing List" <nsrca-discussion at lists.nsrca.org>
>> Sent: Friday, October 06, 2006 12:06 PM
>> Subject: Re: [NSRCA-discussion] Did I make a mistake - engine mount ?
>>
>>
>>
>>> Thank's for the help...
>>>
>>> I guess I will use the Type A mount but I think I will add the nose ring
>>> also.
>>>
>>> Now I have another question...   I was told I could adjust thrust angle
>>> by sliding the back of the motor mount around (motor mount bolts
>>> through the firewall screwed into blind nuts that are attached to
>>> a plywood ring)  if I used a nose ring.
>>>
>>> I am assuming that will only work with the more flexible AR type mounts.
>>>
>>> With the type A mount it looks like that option is no longer available.
>>> How
>>> do I adjust the thrust angle with a type A mount and a nose ring?   Do I
>>> just shim the back of the mount as needed?
>>>
>>>
>>> Joe Lachowski wrote:
>>>
>>>> I have the Type A in my Brio with a nose ring. My choice. It is a 
>>>> heavier
>>>> mount than the others, but then again you will need extra weight up 
>>>> front
>>>> anyway. I have JR 9411's in the rear for elevators. My two cell 2400ma
>>>> LI-Ion  Rx battery is up near the firewall. No need for extra ballast. 
>>>> My
>>>> plane is the composite version and weighs 10lbs-5ozs AUW with OS 140RX 
>>>> in
>>>> the nose. I have 172 flights so far on it. I have used the same mount 
>>>> on
>>>> my
>>>> Temptations in the past without the nose ring. At this point, I prefer
>>>> having added the nose ring(Central Hobbies nose ring)
>>>>
>>>>
>>>>
>>>>
>>>>> From: "Mike Darr" <mdarr00 at comcast.net>
>>>>> Reply-To: NSRCA Mailing List <nsrca-discussion at lists.nsrca.org>
>>>>> To: "NSRCA Mailing List" <nsrca-discussion at lists.nsrca.org>
>>>>> Subject: Re: [NSRCA-discussion] Did I make a mistake - engine mount ?
>>>>> Date: Wed, 4 Oct 2006 19:31:28 -0400
>>>>>
>>>>> A type "A" mount does not require a nose ring.  That mount will be 
>>>>> fine
>>>>> in
>>>>> the Brio, it will just be a stiffer and offer less vibration 
>>>>> protection
>>>>> than
>>>>> an "AR" type mount, or any Hyde mount that requires a nose ring.  It 
>>>>> is
>>>>> up
>>>>> to you, but I think it will be fine in the Brio.  Personally I do not
>>>>> like
>>>>> the type "A" mounts because of how stiff they are, but keep in mind 
>>>>> that
>>>>> I
>>>>> have all of my mounts custom made by Merle to be very loose.  I let 
>>>>> the
>>>>> engine move around as much as possible without contacting the 
>>>>> airframe.
>>>>> The
>>>>> Brio has a large engine bay, which would allow for a lot of engine
>>>>> movement.
>>>>> This would allow you to run a very loose engine mount, giving you
>>>>> maximum
>>>>> vibration protection.
>>>>>
>>>>> A type "A" mount is really designed for a plane with a removable cowl,
>>>>> which
>>>>> is an application that you can not install a nose ring.  The Type "A"
>>>>> mount
>>>>> came out long before Merle came out with the ARI "A" mount which has 
>>>>> the
>>>>> nose ring incorporated into it.  Hope this helps.
>>>>>
>>>>> Mike Darr
>>>>>
>>>>>
>>>>>
>>>>> ----- Original Message -----
>>>>> From: "Kelly Regan" <kelly.regan2 at verizon.net>
>>>>> To: "NSRCA Mailing List" <nsrca-discussion at lists.nsrca.org>
>>>>> Sent: Wednesday, October 04, 2006 6:34 PM
>>>>> Subject: [NSRCA-discussion] Did I make a mistake - engine mount ?
>>>>>
>>>>>
>>>>>
>>>>>
>>>>>> I think I might have made a mistake....
>>>>>>
>>>>>> I purchased a slightly used Hyde mount for my OS140 from another
>>>>>> list member.   When it arrived I realized it was a Type A mount...
>>>>>> For some reason I thought it was a Type AR mount even though the
>>>>>> seller clearly stated Type A in his email to me.  I must be getting
>>>>>> old!
>>>>>>
>>>>>> Anyway is the Type A mount OK for the Brio or should I get the Type
>>>>>> AR that requires a nose ring?
>>>>>>
>>>>>> If it is OK to use the Type A mount should I still use a nose ring 
>>>>>> for
>>>>>> extra
>>>>>> support?
>>>>>>
>>>>>> Thank's for the help.
>>>>>>
>>>>>> ______________________________________________
>>>>>>
>>>>>> Kelly Regan
>>>>>> www.reganbrothers.com
>>>>>> Home Page: http://mysite.verizon.net/vze6uror/
>>>>>> ______________________________________________
>>>>>>
>>>>>> _______________________________________________
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>>>>>> NSRCA-discussion at lists.nsrca.org
>>>>>> http://lists.nsrca.org/mailman/listinfo/nsrca-discussion
>>>>>>
>>>>>>
>>>>> _______________________________________________
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>>>>>
>>>>>
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>>>>
>>>>
>>> -- 
>>> ______________________________________________
>>>
>>> Kelly Regan
>>> www.reganbrothers.com
>>> Home Page: http://mysite.verizon.net/vze6uror/
>>> ______________________________________________
>>>
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>>> http://lists.nsrca.org/mailman/listinfo/nsrca-discussion
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>>
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>>
>
> -- 
> ______________________________________________
>
> Kelly Regan
> www.reganbrothers.com
> Home Page: http://mysite.verizon.net/vze6uror/
> ______________________________________________
>
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