[NSRCA-discussion] F17 barrel roll

Mon Aug 24 15:52:23 AKDT 2015

Barrel roll instructional video
https://www.youtube.com/watch?v=3gBxCShr1_g

DC

On Mon, Aug 24, 2015 at 3:03 PM, Keith Hoard via NSRCA-discussion <
nsrca-discussion at lists.nsrca.org> wrote:

> See: Bob Hoover
>
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>
> -Keith Hoard
> -klhoard at outlook.com
>
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> *From: *Matt K via NSRCA-discussion
> *Sent: *Monday, August 24, 2015 10:57
> *To: *nsrca-discussion at lists.nsrca.org
> *Subject: *Re: [NSRCA-discussion] F17 barrel roll
>
>
>
>
>
> Barrel Rolls?? hell man, take a wine cask, remove the top and get in. Then
> roll downhill...QED
>
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>
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>
> -----Original Message-----
> From: Tom Stennis via NSRCA-discussion <nsrca-discussion at lists.nsrca.org>
> To: Jon Lowe <jonlowe at aol.com>; General pattern discussion <
> nsrca-discussion at lists.nsrca.org>
> Sent: Mon, Aug 24, 2015 12:30 pm
> Subject: Re: [NSRCA-discussion] F17 barrel roll
>
> I was taught to do a barrel roll by picking a point on the horizon put
> your nose to one side of the point pick up a little speed then pull nose up
> applying aileron to track around the original point if done correctly
> coordinated maneuver if done properly glass of water set on dash of
> airplane will not spill.
>
> Sent from my iPad
>
>
> On Aug 23, 2015, at 7:10 PM, Jon Lowe via NSRCA-discussion <
> nsrca-discussion at lists.nsrca.org> wrote:
>
> You have to remember that FAI came up with the Clown Dance maneuver. Maybe
> that says something about the people coming up with these maneuvers.
>
>
>
> Jon
>
>
>
> On Sunday, August 23, 2015 DaveL322 via NSRCA-discussion <
> nsrca-discussion at lists.nsrca.org> wrote:
>
> Not long ago.....we had a fighter turn....it included a half outside
> loop....not something a fighter pilot would ever choose to do.
>
>
>
> I'm betting the full scale techniques might not be too applicable to our
> "barrel roll".
>
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>
> Regards,
>
>
>
> Dave
>
>
>
> Please pardon any spelling errors or brevity.....Sent on a Sprint Samsung
> Galaxy Note® 3
>
>
>
> -------- Original message --------
>
> From: John Fuqua via NSRCA-discussion < nsrca-discussion at lists.nsrca.org>
> Date: 08/23/2015 6:58 PM (GMT-05:00)
> To: 'General pattern discussion' < nsrca-discussion at lists.nsrca.org>
> Subject: Re: [NSRCA-discussion] F17 barrel roll
>
> We need a full scale aerobatic pilot to chip in.   I always thought a
> barrel roll was an aileron roll with the application of positive G.   ie
> you gotta add elevator during the roll which will give you the barrel look.
>
>
>
> *From:* NSRCA-discussion [mailto:nsrca-discussion-bounces at lists.nsrca.org
> <nsrca-discussion-bounces at lists.nsrca.org?>] *On Behalf Of *Derek
> Koopowitz via NSRCA-discussion
> *Sent:* Sunday, August 23, 2015 11:26 AM
> *To:* Ed Alt; NSRCA List
> *Subject:* Re: [NSRCA-discussion] F17 barrel roll
>
>
>
> Perhaps a barrel roll isn’t the best name for this maneuver – I would call
> it a slow wave roll instead.  There are very clear areas of judging
> criteria to look for in this maneuver…. First the pull to a 45 up line, the
> knife edge view of the plane at the top radius of the 45 up line, the
> inverted downline, the knife edge on the bottom radius and the completion
> (upright) view of the plane on the 45 up line before a push to level
> flight.  Since this roll would have to be flown slowly, the difficulty is
> pretty high.  Obviously ensuring that all the radii are the same as well.
>
>
>
> *From: *NSRCA-discussion on behalf of NSRCA List
> *Reply-To: *Ed Alt, NSRCA List
> *Date: *Sunday, August 23, 2015 at 5:35 AM
> *To: *NSRCA List
> *Subject: *Re: [NSRCA-discussion] F17 barrel roll
>
>
>
> I'm not sure , but after 100 years or so, it seems that the barrel roll
> may have a new definition.  This appears to require that the model skid
> around the entire rotation, which is not really how a barrel roll is
> typically done as far as I know.  I believe that you would normally do one
> mainly with simultaneous pitch and roll inputs, and maybe touches of rudder
> to keep that coordinated, in much the same  way as  a coordinated turn
> would be done in a full scale aircraft to keep the turn & bank indicator's
> ball centered. As a result, it would present itself as if the aircraft were
> traveling along the inside of a cylinder with both of it's main gear wheels
> always in contact with its inner surface, hence the name barrel roll.
> Executed this way, you could do that Bob Hoover demonstration of keeping a
> glass of some liquid perfectly still, resting on top of the instrument
> panel.
>
>
>
> This definition seems to be more of a variation on an integrated roll, and
> as a result you would expect to see the tail pointed at perhaps a 45 deg
> yaw angle at one point (when roll angle = 90 deg), and the nose yawed at
> you 45 deg at another (when roll angle = 180 deg).  And I think that as a
> result it would also mean that the wing tip in the direction of the roll
> would always be in contact with the inner surface of the imaginary
> cylinder, instead of both wheels.  Am I visualizing that correctly?  It
> seems like it would be tricky to judge accurately.
>
>
>
> Ed
>
>
>
> Date: Sat, 22 Aug 2015 23:10:49 -0700
> To: underdw at gmail.com; nsrca-discussion at lists.nsrca.org
> Subject: Re: [NSRCA-discussion] F17 barrel roll
> From: nsrca-discussion at lists.nsrca.org
>
> Hopefully this helps…
>
>
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>
>
>
> *From: *NSRCA-discussion on behalf of NSRCA List
> *Reply-To: *Daniel Underkofler, NSRCA List
> *Date: *Saturday, August 22, 2015 at 6:21 PM
> *To: *NSRCA List
> *Subject: *[NSRCA-discussion] F17 barrel roll
>
>
>
> In F17 there is a cryptic aresti symbol that is described in the figure
> description as a barrel roll.  Will somebody please describe this in more
> detail and what control inputs will obtain the required result?
>
>
>
> Thanks, Dan
>
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