Two/Four Stokes
Tomanek, Wojtek
tomanekw at saic-abingdon.com
Wed Nov 13 04:39:40 AKST 2002
Try leaning the DZ high speed needle. The needle should be somewhere
between 4/5 to 1-1/4 out (do not bottom out too hard or you will have to
replace the needle seat). Sometimes it can be tricky to get to the right
adjustment point. The DZs sound different than the Ls so you cannot use that
as a measure. Worst case start at a very rich 2 or 3 turns out and keep
leaning it out, chances are that you may not see appreciable RPM increase
from 1-3/4 turns out down to 1 turn out. When you reach a point that the
RPM actually decreases a little you have just passed the optimum point, and
back out several clicks or 1/8 or little more. You also may have to lean
the low end too. Here use the standard method.
The raw fuel being injected directly into the cylinder will put out the glow
plug if it is too rich. The DZs do not like to run too rich.
Hope this helps your friend with the DZ in his Synergy.
Wojtek
-----Original Message-----
From: Rodney Tanner [SMTP:rtanner at bbbeurorscg.com.mx]
Sent: Tuesday, November 12, 2002 8:40 PM
To: discussion at nsrca.org
Subject: Re: Two/Four Stokes
Quality - sure. But those YS "Dingos" seem to flame out a lot.
Last Sunday a friend was testing his new Synergy with a new Dingo.
4 flights - 4 flame outs.
My Webra 145: 4 flights - 0 flame outs
Anyway Ron has been waiting for a long time for a 2-stroke revival.
So let
him revel a bit!
A memorable quote from Ron in the KF, if my memory serves, went
something
like "4-strokes are just a momentary aberration, caused by a
misguided rule
change". . . ?? :-)
We will just have to wait to see the listings after the 2003? F3A
World
Champs in Poland? Somehow I don´nt think much will change at that
level.
Until then I know which I prefer. The Webra 145.
I have sold my YS´s and the Moki 2.10s (I had for IMAC)
As for a weight limit - well its just not relevant. A Pattern Plane
needs to
be under 10 pounds, at least at this altitude.
Rodney
NSRCA #2906
on 12/11/02 6:23 PM, Terry Terrenoire at amad2terry at juno.com wrote:
> What a pitty! Guess some people don't appreciate quality!
>
> Terry T.
>
> On Tue, 12 Nov 2002 19:19:26 -0500 ronlock <ronlock at comcast.net>
writes:
>> I recently shared a day at a sport field with Joe and a number of
>> other pattern guys - There were seven pattern pilots, seven
pattern
>> birds, and not a 4 stroke in sight !
>>
>> Ron Lockhart
>> ----- Original Message -----
>> From: "Joe Lachowski" <jlachow at hotmail.com>
>> To: <discussion at nsrca.org>
>> Sent: Tuesday, November 12, 2002 7:28 AM
>> Subject: Re: Weight Limit/cost
>>
>>
>>> Come on Terry, when are you gonna come over to the dark side and
>> fly a two
>>> stroke?<vbg>
>>
>>>> From: Terry Terrenoire <amad2terry at juno.com>
>>>> Reply-To: discussion at nsrca.org
>>>> To: discussion at nsrca.org
>>>> Subject: Re: Weight Limit/cost
>>>> Date: Tue, 12 Nov 2002 06:08:55 -0500
>>>>
>>>> Just to confirm this:
>>>> I am currently building a Synergy
>>>> Kit cost $875
>>>> Engine $500, YS 1.40 L
>>>> Header $40
>>>> 4 digital servos $360
>>>> Paint and Monokote $100?
>>>> Ball bearing controls $40
>>>> Pilot $10
>>>> Wheels $30
>>>> Add another misc $100 and you have a total of $2055
>>>>
>>>> And this is with top equipment. Have not purchased a pipe yet
and
>> the
>>>> throttle servo is a 132 from my inventory.
>>>> Eliminate the ballbearing hardware, and digital servos and
you're
>> back
>>>> under $2000.
>>>>
>>>> Terry T.
>>>>
>>>> On Mon, 11 Nov 2002 20:35:00 -0600 "Keith Black"
>> <tkeithb at attbi.com>
>>>> writes:
>>>>>> BTW you mentioned being competitive with a $1500 plane. If
>> true
>>>>> why are
>>>>>> the "top boys" flying planes were the radio/receiver/servos
>> along
>>>>> cost
>>>>> $1500?
>>>>>
>>>>> What I said was one could be competitive by spending $1500 to
>> $2000
>>>>> and I
>>>>> feel that this is the case. That's not to say that the "big
>> boys",
>>>>> or even
>>>>> the well financed guy at the local club, won't spend more.
>> Obviously
>>>>> that
>>>>> dollar figure doesn't assume you get a ready built plane from
>>>>> someone like
>>>>> PLProd. BTW, I wasn't including the transmitter in that figure
>> as
>>>>> most
>>>>> people in the hobby have a TX they fly multiple planes with
>> (even
>>>>> the sport
>>>>> guys). You can get a name brand JR or Futaba radio with lots
>> extras
>>>>> like
>>>>> multi-model support, dual rates, exponential, programmable
>> mixes,
>>>>> etc. for
>>>>> $250.
>>>>>
>>>>> As to the $1500 to $2000 figure consider the following: Top
>> notch
>>>>> JR
>>>>> digitals on all flight surfaces for around $400 to $500, Webra
>> 1.45
>>>>> or OS
>>>>> 1.40RX - $395.00 to $450, Hitec receiver for $60, competitive
>>>>> cutting edge
>>>>> kit or ARC for $425 to $700 (in my case I'm building an Aries
>> from
>>>>> AeroSlave, but you can also go with others or even get an ARC
>> Focus
>>>>> for
>>>>> $595). Add another $300 or so for building supplies, landing
>> gear,
>>>>> spinner,
>>>>> linkages, etc.
>>>>>
>>>>> That comes to right around $2000 on the high end and $1500 on
>> the
>>>>> low end,
>>>>> and the result in either case would be a very competitive
>> plane.
>>>>>
>>>>> The point of my message was that I can be on a competitive
>> playing
>>>>> field in
>>>>> Pattern in this dollar range, but in IMAC the price tag is
>> more like
>>>>> $7000
>>>>> and continually growing as pilots go from 33%, to 40%, to 50%
>>>>> planes. It
>>>>> would be very discouraging to me to have to compete against
>> someone
>>>>> that
>>>>> drops this much money on am IMAC plane, but if someone drops
>> $3000
>>>>> or $4000
>>>>> on a pattern plane I know it's probably just because they
>> didn't
>>>>> want to
>>>>> build :-)
>>>>>
>>>>> Keith Black
>>>>>
>>>>> ----- Original Message -----
>>>>> From: "GeorgeF." <av8tor at flash.net>
>>>>> To: <discussion at nsrca.org>
>>>>> Sent: Monday, November 11, 2002 6:06 PM
>>>>> Subject: Re: Weight Limit
>>>>>
>>>>>
>>>>>>
>>>>>>> In IMAC they're continually building them bigger and
>> bigger,
>>>>> and one
>>>>> has
>>>>>>> to follow suite to be competitive.
>>>>>>
>>>>>> This "bigger and bigger" as resulted in many flying fields
>> being
>>>>>> lost. Both because of "big" planes being flown wrecklessly
>> and
>>>>> because of
>>>>>> noise.
>>>>>>
>>>>>>>
>>>>>>> I know that changes often have unintended consequences.
>> The
>>>>> question is
>>>>>>> will lifting the weight limitation cause an explosion in
>> price or
>>>>> simply
>>>>>>> provide more economical and technically appealing options
>> as
>>>>> others have
>>>>>>> suggested.
>>>>>>
>>>>>>
>>>>>> For an answer to this lets take a look at what happened with
>> the
>>>>> engine
>>>>>> size rule was lifted. What happened to cost? What happened
>> to
>>>>> average
>>>>>> aircraft size? Both went up.
>>>>>>
>>>>>> BTW you mentioned being competitive with a $1500 plane. If
>> true
>>>>> why are
>>>>>> the "top boys" flying planes were the radio/receiver/servos
>> along
>>>>> cost
>>>>> $1500?
>>>>>>
>>>>>> George
>>>>>>
>>>>>>
>>>>>> =====================================
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>>>>>>
>>>>>
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>>>>>
>>>>>
>>>>>
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>>>
>>>
>>>
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