[NSRCA-discussion] F3A: F21 observations

[james woodward]

Excellent presentation!  Thanks for pointing it out.
Jim

On Mon, Nov 25, 2019 at 1:41 PM Jas S via NSRCA-discussion <
nsrca-discussion at lists.nsrca.org> wrote:

> https://nsrca.us/index.php/powerpoint-presentations
>
> Jas iP
>
> On Nov 25, 2019, at 2:19 PM, Derek Koopowitz via NSRCA-discussion <
> nsrca-discussion at lists.nsrca.org> wrote:
>
> Jim,
>
> With regard to the golf ball - please look over the PowerPoint
> presentation on the Nsrca web site for different views of what an
> appropriate golf ball may look like - page 7.  And yes the entry/exit radii
> must match the top - page 6.
>
> Best,
> Derek
>
> Sent from my iPhone
>
> On Nov 25, 2019, at 10:50 AM, james woodward via NSRCA-discussion <
> nsrca-discussion at lists.nsrca.org> wrote:
>
>
> 
>
> Some F21 Manuever Discussion:
>
>
> 1. Golfball - does the entry/exit radii need to match the top?   The
> maneuver seems to get HUGE.  I'm thinking I need to tighten the initial
> segment of the top loop.  And then tighten the last segment, to preserve
> the second 45 down line.  Hit 45, and not be "flat", else the top loop gets
> even bigger.
>
> 2. 1/2 Cuban 8, 2/4 pt, 1/4 Roll, Knife edge 5/8 Loop:  EXCELLENT maneuver
> for airplane trimming :)  Roll & pitch mix to Rudder viewed every flight
> haha.  With the Invitation, Left Rudder zero/zero, Right rudder bout 5%
> down elevator, 1.5% Left Aileron :)
>
> 3.  Roller - 1/2 in, 1/2 out - also excellent rudder trim maneuver.
>
> 4.  Top Hat - good maneuver after the roller
>
> 5.  Funky Humpty (center cross);  Attempting to "fix" the spline after the
> 1/4 loop integrated just makes it worse.  Must "ping" this upline and just
> power through into the roll.  Downline - yikes - If you go "out", and
> looking at the "Bottom" of the plane - Lead with the Rudder that points the
> direction you want to go, then aileron/elevator.  Wrong Rudder at this
> point with freeze your brain!@! haha
>
> 6.  3/4 8 with 1/2 roll - not too bad - no reason to go too tall
>
> 7.  Funky Hammer (Center with looping sections):  Not too bad, but
> difficult to get the "downline" on center for sure.
>
> 8.  Figure 9 with 1.5 snap:  not too bad.  Fly at the end of the box to
> give room for center top-hat
>
> 9.  Top-Hat:  Pretty cool maneuver!  If in doubt, begin early, but the
> "exit" determines the next maneuver.
>
> 10.  1/2 Square loop, 1/2 roll entry:  Must hit the previous "exit"
> perfectly, then 1/2 Roll entry into 1/2 sure.  1/2 roll entry is a kind of
> a refreshing take on this maneuver.
>
> 11.  45 down line:  1/4 roll, snap, opposite snap, 1/4 roll.  I haven't
> nailed this yet, but so far, Positive first, Negative second, seems to help
> hold the 45 line.
>
> 12.  1/2 8 sided with 1/2 rolls 1xt,3rd legs.  Not too bad.  Also, try not
> to get too tall.
>
> 13.  Loop with opposite integrated rolls:  cool maneuver - seems to go
> best when not trying to make too big or over control.  Error on the "power
> power" for heading up the backside, makes coordinating the aileron/rudder
> easier.
>
> 14.  Positive 2.5 turn spin - nice given P21 has a 2.5 negative spin.
>
> 15.  Roll Combo:  Nice manuever - but "exit" into the  Fighter Turn...
>
> 16.  Fighter Turn:  3/4 Roll, 3/4 Snap to Upright.  For some reason,
> flying Left to Right, I hit this OK.  Flying right to Left, its been a
> visual disaster for me.  This is my worst maneuver so far.  I'll need to
> specifically practice this one.
>
> 17.  Horizontal Square:  1/4 Roll, 1/2 rolls out, 1/4 roll.  So far, looks
> worse on paper than it is.  Of course, its beneficial  to be a tad higher
> baseline to fly this.  When pushing the corners, almost no rudder is needed
> to maintain height.  This is a rudder brain teaser, as you are constantly
> in/out of rudder same direction while pushing corners, then rolling, then
> in/out other direction during corner pushes.
>
>
> Anyone else have some comments yet on F21?
>
> Jim
>
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