[NSRCA-discussion] Activities for a Sunday ,, was Too Quiet
rcmaster199 at aol.com
rcmaster199 at aol.com
Mon Nov 16 08:02:05 AKST 2009
I've heard some comments about gas not being competitive and on paper, it might be true. In practice, you can throw the theory out the window. I suspect similar comments about other engine arrangements as well, the comparisons being against either the YS 170 or certain electric set-ups that put out at least 3500 W (weight??)
Keeping the weight at 11# or less makes practically any airframe viable. Forget about the so called draggy fuses. The majority of drag is in the wing. Make this right and you can toss drag arguments out the window too. And I don't mean reducing the area
2 stroke gas has certain specific advantages over 2 stroke glow. Ignition timing eliminates the need to time the engine using mixture and pipe. Downline brakes is another area I am looking forward to experiencing.
Plus....."Look Ma, no goo". At 100:1 oil mix, what goo is there? Well that's true for the Syssa; don't know what mix G is using in his 160
(I try not to use the running cost and maintenance cost arguments too much since these are amortised and hidden for the most part. They exist but most don't care)
MattK
-----Original Message-----
From: W. Eddie Batchelor <perkinsrx at centurytel.net>
To: 'General pattern discussion' <nsrca-discussion at lists.nsrca.org>
Sent: Mon, Nov 16, 2009 10:36 am
Subject: Re: [NSRCA-discussion] Activities for a Sunday ,, was Too Quiet
I must concur. Contrary to some comments by others that the gas converted
S160 isn't competitive - At our LARKS contest we watched Mark Hunt fly P-11
ith George's Black Magic VF3/ OS160-Gas and he didn't lack power anywhere
n the sequence. The half-square loop with full snap roll up proved the
ower avail. It was fun to watch.
Eddie
-----Original Message-----
rom: nsrca-discussion-bounces at lists.nsrca.org
mailto:nsrca-discussion-bounces at lists.nsrca.org] On Behalf Of
lmiller3 at suddenlink.net
ent: Monday, November 16, 2009 6:15 AM
o: General pattern discussion
ubject: Re: [NSRCA-discussion] Activities for a Sunday ,, was Too Quiet
Matt,
Very interesting. I have two 160's and they are turning 7900 with 18.1X11
PC's. They don't have the "stupid power" of a YS 170 but they will pull
he plane through maneuvers just fine.
Good luck with the Syssa, and keep us apprised.
G
--- rcmaster199 at aol.com wrote:
=============
G,
I have both powerplants. Weight favors the Syssa by a couple ozs. Power is
robably a wash. I will tell you that the Syssa, brand new, turns a 17x12 at
200 on pipe. After break in it will run a couple hundred more. My 160 on
ipe didn't run those numbers on the ground but flew the plane well enough.
This will be an intersting experiment since the plane is the same one I used
ith the 160. Ed Alt is compiling data for a future KFactor article
The ZDZ40 is still in the works for me. Mine will make weight but I agree,
he engine system is heavier than it should be
MattK
-----Original Message-----
rom: glmiller3 at suddenlink.net
o: General pattern discussion <nsrca-discussion at lists.nsrca.org>
ent: Sun, Nov 15, 2009 10:29 pm
ubject: Re: [NSRCA-discussion] Activities for a Sunday ,, was Too Quiet
orry, John,
Matt's not the only one working on a gas pattern plane. I've been working
n
ne for a year now. OS160 converted to gas with a ProSpark ignition. I
ust
bout have the kinks worked out of the system. The Syssa looks pretty heavy
o
e, that's why I abandoned trying the ZDZ40 and went with the OS160.
G
--- John Pavlick <jpavlick at idseng.com> wrote:
=============
hat's one of the nice things about living in New Jersey: you don't have to
o
ar to fly with Pattern Legends! Living in Connecticut is another story. I
on't
ant to tell you what happened at my field this weekend... LOL
Jeez Matt, you gave away your secret weapon plans. Now everyone will be
uilding
gas Pattern plane for next season! VBG
John Pavlick
ttp://www.idseng.com
----- Original Message -----
From: rcmaster199 at aol.com
To: nsrca-discussion at lists.nsrca.org
Sent: Sunday, November 15, 2009 8:15 PM
Subject: [NSRCA-discussion] Activities for a Sunday ,, was Too Quiet
Getting my Enigma original design outfitted with the new Syssa 180
asoline
ngine. The soft mount build has just been completed and retrofitting on the
firewall just done. It just needs servos and it will fly next weekend
eather
ermitting
On Ed Alt's suggestion, we went to fly with legendary pattern competitor,
im
artin. I first saw him fly 40 years ago, flying his Banshee design in a
anner
had never seen before. Extremely fast, right on the deck, with extreme
recision. He was twice my age back then and being a rank beginner and shy,
t
ever occured to me to approach him just to talk. Well, 40 years later, I
ot
he chance. What a nice man... one very interesting thing to me being of
rmenian decent, he told me that he also is of Armenian decent. That's
retty
ool to me
He explained that he has a new version of his famed Banshee in a more
urrent,
uch better done fiberglass/foam configuration that he intends to electrify.
That should be cool.
MattK
-----Original Message-----
From: Atwood, Mark <atwoodm at paragon-inc.com>
To: 'nsrca-discussion at lists.nsrca.org' <nsrca-discussion at lists.nsrca.org>
Sent: Sun, Nov 15, 2009 3:10 pm
Subject: Re: [NSRCA-discussion] Too Quiet
ut Flying!
-------------------------
ent from my BlackBerry Wireless Handheld
---- Original Message -----
rom: nsrca-discussion-bounces at lists.nsrca.org
nsrca-discussion-bounces at lists.nsrca.org>
o: 'General pattern discussion' <nsrca-discussion at lists.nsrca.org>
ent: Sun Nov 15 15:17:44 2009
ubject: Re: [NSRCA-discussion] Too Quiet
I'm in the shop building..can't speak for anyone else.
-----Original Message-----
rom: nsrca-discussion-bounces at lists.nsrca.org
mailto:nsrca-discussion-bounces at lists.nsrca.org]
On Behalf Of rjo626 at aol.com
ent: Sunday, November 15, 2009 2:20 PM
o: nsrca-discussion at lists.nsrca.org
ubject: [NSRCA-discussion] Too Quiet
Helloooooooooooooooooooo!
Later!
Anyone?
RJO
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