[NSRCA-discussion] YS 140L throttle "problem"

Wed Aug 9 18:27:00 AKDT 2006

I just installed a new 140 in my Synergy. Had 90 flights on the original
and sent it in for new ring, and rear bearing.
I ran one tank of PM 25% thru the engine on the ground, cycling between
lean and rich.
Then I put it in the air, still a little rich. I had forgotten how much
power this engine produces. Noticed it while trying to taxi. the
slightest movement of the throttle stick had a great response at the
engine. I could not taxi without "pulsing" the engine.
It flew fine, but after landing, the engine would not shut down. It just
kept clicking over shaking the plane horribly. A quick bump of the
spinner with my hand stopped the determined engine. When I got home I
adjusted the throttle expo to flatten the curve on the low end.
Tonight I put on the 2nd flight. Neither problem was solved. I still had
to pulse the throttle to taxi, and it would not shut down.
I use the 3 position switch on the Futaba TX to go to low idle, and cut
off. Always worked in the past.
I am thinking that there is something wrong with the carb, and may try
putting the carb from the original engine on the new one.

Anyone have any other ideas??

Terry T.

On Wed, 9 Aug 2006 08:29:47 -0500 "White, Chris" <chris at ssd.fsi.com>
writes:
Oh, the good ole days…..
Back when I was about 12  (1971) my dad traded our Honda 90 for an EK
Logictrol (Log 2)….it had humongous servos, plugs and a shorting plug for
a switch.  

Memories…..
We learned to fly on the old Styrofoam Canyon Schwiezer 1-26 sailplane on
Hi-Start ($29 from Tower I think).   First flights yielded 1 traffic
pattern from a 300 ft launch….I remember something like 30-40 second
flights…(IT WAS VERY HEAVY)  Then I’m back chasing the hi-start
parachute. (Yep, I earned my flight time!!!!)   Dad then extended the
round trailing edges that came out of the mold by using balsa trailing
edge material and we picked up a few more seconds per flight….then
sandpaper and elmer’s white glue to smooth the wing surface….a few more
seconds.  I think we finally got it to about 1:50 avg flight per tow.  In
contrast a couple of years later we bought one of the new EK Champions
with the little bitty servos….built a Windfree and got at the very
minimum 5 minute flights from the hi-start in dead air.

Why does it seem that RC was just as much fun then as it is now…..(I
would never have dreamed of having more than one setup back thenJ)

Chris White

From: nsrca-discussion-bounces at lists.nsrca.org
[mailto:nsrca-discussion-bounces at lists.nsrca.org] On Behalf Of
jivey61 at bellsouth.net
Sent: Tuesday, August 08, 2006 10:00 PM
To: NSRCA Mailing List
Subject: Re: [NSRCA-discussion] Inadvertent Start

Anybody......remember the shorting bars we had made from a wood dowel and
plugged in to turn on the receivers in the "50s. I had one on my J3 Cub
BCR10 Babcock system. My 1st RC plane.

Jim Ivey
----- Original Message ----- 
From: Ron Lockhart 
To: NSRCA Mailing List 
Sent: Tuesday, August 08, 2006 7:55 PM
Subject: Re: [NSRCA-discussion] Inadvertent Start

Agree, a mechanical/electrical connection sort of thing would seem best.
And have it located to be easy for all to see.

Later, Ron Lockhart
----- Original Message ----- 
From: John Ferrell 
To: NSRCA Mailing List 
Sent: Tuesday, August 08, 2006 4:42 PM
Subject: Re: [NSRCA-discussion] Noxville Contest??

I personally witnessed an instance of electric starting unexpectedly at
the Nats. Since I was only around Masters & FAI I believe it safe to
dismiss the problem as lack of experience.

I feel it essential to implement some kind of safety device to prevent
this from occurring. I would prefer a mechanical lockout of some sort or
at least an arming plug.

The airplane was being carried back to the pits when the failure
occurred. The handler was on top of the problem but it could have
happened after the plane was parked.

It is a disaster waiting to happen.

John Ferrell    W8CCW
"My Competition is not my enemy"
http://DixieNC.US
----- Original Message ----- 
From: J.Oddino 
To: NSRCA Mailing List 
Sent: Tuesday, August 08, 2006 12:53 PM
Subject: Re: [NSRCA-discussion] Noxville Contest??

Another reason to go electric.

Jim O
----- Original Message ----- 
From: John Ferrell 
To: NSRCA Mailing List 
Sent: Sunday, August 06, 2006 9:38 AM
Subject: Re: [NSRCA-discussion] Noxville Contest??

I have an $8000 left thumb. They installed a couple of options while they
were rebuilding. It warns of weather changes and also serves as an alarm
clock (sometimes).

I recommended that a student headed for a pro basket ball career give up
RC until the career was behind him.

John Ferrell    W8CCW
"My Competition is not my enemy"
http://DixieNC.US
----- Original Message ----- 
From: BUDDYonRC at aol.com 
To: nsrca-discussion at lists.nsrca.org 
Sent: Sunday, August 06, 2006 11:10 AM
Subject: Re: [NSRCA-discussion] Noxville Contest??

About two years ago I got my finger in one It cut the right index finger
off at the first joint. Wrapped the finger in a towel went to the
hospital with the severed finger, three month's and $6000.00 later it was
almost as good as new except it is still numb on the end. APC's show no
mercy.
Buddy 

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