[f-AA] Handpropped - pilotless takeoff

Fri Dec 1 08:51:50 PST 2006

Todd, you can use a long bungy to hold the throttle closed.  I use a piece of "T" stringer cut to the correct width to put on the closed sid of the throttle.  The thickness of the "T" is so it fits in the throttle slot, some what snug, the width being about 3/8 for hot starts in my champ.  I put the T in the throttle slot behind the throttle lever, then hook the bungy up which pulls the trottle shaft against my T. Throttle open exactly 3/8 of an inch every time, while still held towards the closed position. Should the T ever vibrate out, the bungy would close the throttle the last 3/8 of an inch.

JODY WITTMEYER
jodydeb at earthlink.net

----- Original Message ----- 
From: Todd Pattist 
To: aeronca at westmont.edu
Sent: 12/1/06 8:27:03 AM 
Subject: Re: [f-AA] Handpropped - pilotless takeoff

I'd be interested in seeing some info on throttle locks for a Champ (curved slot in side panel with throttle extending through the slot and moving in the arc.)  We've just reinstalled the engine with a rebuilt carb and things have changed enough that my old system won't work.  We're also going to change the idle stop soon.  Is there an adjustable design for a throttle lock that fits in the curved slot and holds the throttle where you want it?  I was going to wait until we have it dialed in where we like it, and the engine is fully broken in, then make something that holds it at a fixed spot.
Todd

Markl wrote: 
This one shows the worth of a "cracked" detent so that throttle opening can be exact and the same each time.  Anyone wanting to know how to do this give me your phone number or email me OFF list.

Fly frequently, many times, often, over and over again, and LOOK around,

Regards,
Tony Markl
----- Original Message ----- 
From: Larry Waggoner 
To: aeronca at westmont.edu 
Sent: Thursday, November 30, 2006 11:20 PM
Subject: Re: [f-AA] Handpropped - pilotless takeoff

Steve:  I will throw one of  my stupid experiences with added throttles and spinning the prop. I was a new private, 18 yrs. old, and had my new wife get in the cub in the front seat and hold the brakes on the J3 Cub. I propped. No start.  I just slightly advanced the throttle, not wide open.  I even rechecked it thinking  I might have added too much.  Suited me.  Just right. Spin prop. Yep, started great.  That small addition of throttle with my wife in the front seat. Tail straight up. She was looking me straight in the eye( I mean wide-eyed) and the little cub was pulling trying to go.  Thank goodness she held those brakes in a death push. She has never let me forget this after 54 yrs. Just last week she asked me if I wanted to advance the throttle and prop 4646E. very sarcastic. (It is electric)  Moral. That throttle does not have to be full on to lose one. Nothing beats throttle off, chocked or tied, and take a course on the correct method to prop and airplane.  <G>  Larr
 y  (PS. Steve you must live in  MO. 72 Yesterday.  18 now.  3 inches of ice on the ground. 10 to 12 inches snow forecast for to-nite)

----- Original Message -----
From: "Steve Lawlor" <9mo3 at ponyexpress.net>
To: aeronca at westmont.edu
Subject: Re: [f-AA] Handpropped - pilotless takeoff
Date: Thu, 30 Nov 2006 20:59:11 -0600

Todd,
A good friend propped her champ after clearing a flooded engine. The
throttle was full on. She dove for the throttle as the aircraft lurched
over the chocks. The old rope on the tail snapped when pulled tight. The
champ went straight across the runway, over an embankment, and down into
trees, dragging her all of the way. Fifteen thousand dollars later the
plane is flying again. She had to wait for a collar bone and possibly a
rib to mend. She's a little more careful now.
Steve Lawlor It was 72 Tue. and now it's 18deg F BRRRRR!

Todd Pattist wrote:

> Hi all,
>
> The subject of aircraft stability has come up and I'm interested 
> in cases where an airplane, like my Champ, has been handpropped 
> without a proper tiedown and has gone to full throttle and 
> escaped. I recall some cases where the airplane takes off, but I 
> can't recall all the details of what type aircraft, or exactly 
> how far away it flew. Can anyone fill me in, possibly giving me 
> a link to an accident report or just firsthand recollection. How 
> far can our airplanes fly without a pilot? To fuel exhaustion? 
> Or just to a spiral-in crash at the far end of the runway?
>
> Thanks for any info.
> Todd
> _______________________________________________
> Aeronca mailing list
> Aeronca at westmont.edu
> http://mail.westmont.edu/mailman/listinfo/aeronca
>
>
>
>
>

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