Mike
NC83502
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Steve Statkus NC9510E
I use to barrel roll an 85 hp Champ years ago. It was slow and sluggish and wanted to fall out of the top usually. I can only imagine an aileron roll being even harder to even get all the way around. But mostly, the spars and the fuselage frame, etc were much younger then. I don't even spin my Chief now thinking about the spars and all being about 65 years old now. Unless the Champ is a recent rebuild of which you are familiar with all the components, I'd stick with the Pitts.
Nope!Barrel roll From Wikipedia, the free encyclopedia
A barrel roll occurs when an object (usually an airplane or roller coaster) makes a complete rotation on its longitudinal axis while following a helical path, approximately maintaining its original direction. The G load is kept positive (but not constant) on the aircraft throughout the maneuver, commonly not more than 2-3 G.
In aviation, the maneuver includes a constant variation of attitude in all three axes, and at the midpoint (top) of the roll, the aircraft is flying inverted, with the nose pointing at a 90-degree angle ("sideways") to the general path of flight. The term "barrel roll" is frequently used, incorrectly, to refer to any roll by an airplane (see aileron roll), or to a helical roll in which the nose remains pointed generally along the flight path. In fact, the barrel roll is a specific and difficult maneuver; a combination of a roll and a loop. It is not used in aerobatic competition.And No.....No matter what he said, Tex Johnston did NOT barrell roll the B-707 prototype. :)
Totally agree with the below. You want to do acro, do it in a plane designed for it.
Last thing we need are people flying upside down in a Aeronca and having something bad happen.
Joe A
| i used to loop a metal sparred Cub ,but gently, these days i agree with the consensus,the Citabria,and Pitts are bred for this, the Aeronca is for smelling the roses. --- On Wed, 2/2/11, Bob McGrath <drb...@vtc.net> wrote: |
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Properly is the key word here. And having done 8 years in a Pitts, the pilot would probably get the plane to act properly. But probably is now the key word here. The Champ doesn't really understand properly and will indeed have to be horsed around a bit probably......maybe.
Original Message -----
Date: Wed, 2 Feb 2011 23:11:49 +0000
From: 11...@comcast.net
To: aer...@westmont.edu
Subject: Re: [f-AA] Rolling a Champ
I use to barrel roll an 85 hp Champ years ago. It was slow and sluggish and wanted to fall out of the top usually. I can only imagine an aileron roll being even harder to even get all the way around. But mostly, the spars and the fuselage frame, etc were much younger then. I don't even spin my Chief now thinking about the spars and all being about 65 years old now. Unless the Champ is a recent rebuild of which you are familiar with all the components, I'd stick with the Pitts.
----- Original Message -----
From: "Mike Payton" <mpa...@yahoo.com>
To: aer...@westmont.edu
Sent: Wednesday, February 2, 2011 4:52:31 PM
Subject: [f-AA] Rolling a Champ
I have been flying aerobatics in a Pitts S1D for eight years. I would like to roll my Champ. Anybody ever done this and what should I expect.
Mike
NC83502
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A roll in a Champ is more of a "flop over" just like a loop is a "figure l". Don't even think about it unless you have the experience/training to avoid anything negative. Obviously a Champ is not a Pitts or even a Citabria. My suggestion is to get some dual in a 7ECA and practice aerobatics at about 75% power. Most aerobatics can be done in a Champ at less than +2G but energy control is an absolute must. Gentle is the bywword
|
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Actually, that's not quite right. Your point is well taken....however, the Champs were not restricted from any manuvers at the time if operated within the design limits, which others have pointed out would permit "correctly" performed loops, rolls, etc. So, I suspect that most of them have been upside down at one time or another in their lives, but most many, many years ago when their components were much, much newer.
----- Original Message -----
From: "Tony Markl" <ma...@intercom.net>
To: aer...@westmont.edu
Sent: Wednesday, February 2, 2011 8:52:21 PM
Subject: Re: [f-AA] was Rolling a Champ
There are questions that we all have to answer for ourselves. I'm hard on 73 years old and certainly not as bullet proof as I was at 15 when I first looped a Champ, but I would not hesitate to do it tomorrow if the high temp were not to be 39F. Rolls are a bit different and I just do not get much joy out of them so I don't do them often. There are a number of provisios, the main one is to have a known quality spar set and lower fuselage longerons. Even in my senior condition I am confident doing low positive G aerobatics. One of the most satisfying things that I do is to loop around a small summer cumulus cloud. I come back to the ground ten years younger.
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I've done aerobatics for over 55 years and have never exceeded the design parameters of those aircraft I've flown if one excepts the accidental tail slide I inadvertantly entered in a 300 Stearman. Stresses imposed on aircraft during mild aerobatics are more often less than those imposed on a hard landing. I used to fly aerobatics in my Citabria with one eye on the G meter and limted the push/pull/kick to 2.5G. On a couple of occasions I've ended up with an airplane that could not be reused and am lucky that lessons learned through aerobatic training saved my personal bacon and precious bodily fluids. Once when I ended up peeling airplane parts off my hide was just survival based on God's grace
|
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Your Champ is probably @ 65 years old. There are no federal
regulations to require any A&P/IA to x-ray your fuselage components or
do an eddy-current to determine tube cross-section degredation or weld
integrity to maintain your "airworthiness". The internal condition of
most Champ fuselage tubes is a guess, at best. The Aeronca, Champion,
Bellanca models that were "approved" for aerobatic maneuvers had a
placard in plain view of the pilot. Your airplane was not approved under
its type certification under CAR 3 for aerobatic maneuvers. Some may
argue these maneuvers aren't prohibited either. Frankly, the FAA doesn't
buy that argument and neither does the NTSB.
I'm going thru Principal Inspector training right now in
Anchorge. Part of our training today covered fatal and serious injury
accidents in Alaska. The largest percentage of accidents in Alaska in
the last 5 years have been intentional operation of aircraft outside of
their design......overloading, aft CG and unapproved maneuvers.
You are betting your life! You are betting on the structural
integrity of ancient tubing, spar attach fittings, spar carry-thru
(center sections), tail braces, engine mounts, spars.....you get the
idea.
Let the long blades of un-mown, dew-laden grass entice your old
girls tires into an unfelt landing be your secret pleasure. Leave the
upside-down, g-loaded, barf bag flying to the fuel injected,
fire-belching, earsplittenloudenboomers designed for that purpose. About
15 minutes in a Pitts S2 sent me home crying for my Mommy!
Just my 2 cents worth.....
Gregg Horrell
On Wed, Feb 2, 2011 at 1:52 PM , Mike Payton wrote:
> I have been flying aerobatics in a Pitts S1D for eight years. I would
> like to roll my Champ. Anybody ever done this and what should I
> expect.
>
> Mike
>
> NC83502
>
>
Aer...@westmont.edu
.... Even in my senior condition I am confident doing low positive G aerobatics. One of the most satisfying things that I do is to loop around a small summer cumulus cloud. I come back to the ground ten years younger.PCAeronca mailing list
http://mail.westmont.edu/mailman/listinfo/aeronca
--------------------------------------------------
From: "Rob Murphy" <murp...@charter.net>
Sent: Wednesday, February 02, 2011 2:50 PM
To: <aer...@westmont.edu>
Subject: Re: [f-AA] Rolling a Champ
> Mike,
| those ailerons were fighter light on the short bodies,not so much with the 30s.. --- On Wed, 2/2/11, CaptG...@aol.com <CaptG...@aol.com> wrote: |
|
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From: "Louis and Sabrina" <lkn...@ptialaska.net>
Sent: Wednesday, February 02, 2011 11:34 PM