Today's Message Index:
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1. 05:31 AM - Re: Different tail feathers for a Twinstar MK II?? (George Helton)
2. 07:38 AM - Re: Different tail feathers for a Twinstar MK II?? (Richard Pike)
Message 1
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Subject: | Re: Different tail feathers for a Twinstar MK II?? |
I personally never found a thing wrong with Homers original design on my MKII Twinstar.
Why try to reinvent a good, simple design that works?
Just my experience.
George Helton
Original Firestar, Hirth 2702
Mesick, Michigan
gdhelton@gmail.com
Sent from my iPhone
> On Nov 17, 2019, at 5:33 PM, Jerry-TS-MkII <1957grnchev@bluemarble.net> wrote:
>
>
> Hello to all..
> This may be redundant.. I've never had much luck with search engines on the forums.
I need to get to work on this MKII.. and I've heard lots about offset
fins, trim tabs, and slow flutter issues. Uh.. ANY indication to flutter, IMHO
needs revision. I'm considering a new tail group, with built in trim tabs,
(using a servo drive for each), and aerodynamic and physical balance as well.
I was never fond of the over-simplified outlines.. because I'm sure they were
intended as simple. But there isn't much rocket science to building better ones,
with balance.. that are much less prone to flag-waving and/or departure from
the aircraft. And I know there are many opinions.. but curious about what
others might have to say.. or like the photo link to a balanced rudder (which
looked rather out of place.. ie long tube forward, with steep pipe to balance
it).. but if it worked, that is what is hugely important. One thought on this
possible revision, is a resettable leading edge offs!
> et for either the fin or the horizontal stab.. or even using them as the primary
"trim" function. (aka J-3 Cub trim). Hope all is well with everyone, Jerry
> And if you want to quote anything, just copy and paste a section.. I really want
to avoid my email being posted here, in each quote. THX
>
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> Read this topic online here:
>
> http://forums.matronics.com/viewtopic.php?p=493086#493086
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Message 2
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Subject: | Re: Different tail feathers for a Twinstar MK II?? |
"Richard Pike did some work along those lines. If he doesn't see this, get ahold
of him on Facebook. Bill Sullivan"
I think he is referring to my admitedly curious rudder counterbalance:
" or like the photo link to a balanced rudder (which looked rather out of place..
ie long tube forward, with steep pipe to balance it).. but if it worked, that
is what is hugely important. "
http://oh2fly.net/oldpoops/pg6.htm
As long as you keep your feet on the rudder pedals, no flutter. Take your feet
off the pedals, you need some serious tension springs. My springs were as strong
as I could deal with, in terms of hooking them up, and they were insufficient,
so I went with a counterbalance.
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Richard Pike
Kolb MKIII N420P (420ldPoops)
Kolb Firefly Part 103 legal
Kingsport, TN 3TN0
Forgiving is tough, being forgiven is wonderful, and God's grace really is amazing.
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=493106#493106
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