Author: Steve Kaluf


Edition: Model Aviation - 2001/05
Page Numbers: 162,163,164,165,166
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Focus on Competition - 2001/05

Technical Director

Steve Kaluf skaluf@modelaircraft.org

I have a couple of important issues to cover this month, so there's no actual column this go-around.

First up is a Control Line Safety Rules Change Proposal.

The nature of safety proposals is such that they may be put in place immediately if the AMA president, Contest Board coordinator, and appropriate Contest Board chairperson agree that it should be. That has been done in this case, so the proposal is now in effect. However, for the proposal to stay in effect it must be ratified by the full Contest Board four weeks after publication in Model Aviation. This is where we currently are in the process. If you have any concerns about this proposal, please contact your District Control Line Contest Board member as soon as possible.

Safety Rules Change Proposal

Submitted by Bob Whitney, AMA RAD

A brief summary of the proposed change: for Mouse II, Event 314, change line length from 42 feet to 47 feet 6 inches. Use FAI (Fédération Aéronautique Internationale) outer pilot circle of 9' 10" instead of AMA 15-foot circle.

Exact wording for rule book:

  • Page 42, paragraph 7.2: change "A circle of 15 foot radius from the center point ..." to "A circle of 9' 10\" ..."
  • Change line length (in chart) from "42'" to "47' 6\"."
  • Page 45, paragraph 4.1: change " ... 75 laps (Class II) ... " to " ... 70 laps (Class II) ... "
  • Page 45, paragraph 4.2: change " ... 200 laps (Class II) ... " to " ... 140 laps (Class II) ... "

The logic behind this proposal is that new engines are allowing Mouse II to obtain speeds exceeding 100 mph. The existing line length and large pilot circle make it hard to get back to the center of the circle before the airplane gets around to the other side of the circle. This is an unsafe condition, as lines can (and have) wrapped up the other two pilots.

The second item this month is the publication of the 2001 Scale Aerobatics sequences. These schedules are also available from AMA Headquarters upon request.

Till next time ... MA

2001 Unlimited Known Sequence

  • Figure 1 — Zone C

Description: Figure N; 2-point roll on vertical upline, pull to inverted 45° downline with 1½ negative snap rolls, pull to vertical upline with 1 roll, exit inverted Cat. #: 1.3.4; 1.9.2.1.4; 9.10.4.6; 9.11.4 K Factor: 20; 13; 16; 12 Total K: 61

  • Figure 2 — Zone E

Description: 1½-turn negative spin, exit inverted Cat. #: 1.6.4; 9.12.1.6 K Factor: 10; 5 Total K: 15

  • Figure 3 — Zone C

Description: 3-roll 360° turn, 1st roll inside, 2nd roll outside, 3rd roll inside, exit inverted Cat. #: 2.1.4.2 K Factor: 54 Total K: 54

  • Figure 4 — Zone E

Description: Hammerhead; 1½ negative snap rolls up, ¾ roll down, exit inverted cross box Cat. #: 5.1.2; 9.10.1.6; 9.1.5.3 K Factor: 23; 22; 6 Total K: 51

  • Figure 5 — Zone E

Description: Figure 9; ¼ outside loop, 3 of 4-point roll on vertical downline, exit upright Cat. #: 8.4.4.2; 9.4.5.3 K Factor: 15; 8 Total K: 23

  • Figure 6 — Zone C

Description: Humpty Bump; ¾ positive snap roll on vertical upline, ½ outside loop over the top, ¾ negative snap roll on vertical downline, exit upright Cat. #: 8.3.1; 9.10.5.3; 9.9.1.3 K Factor: 13; 15; 15 Total K: 43

  • Figure 7 — Zone E

Description: Wheels Down Tail Slide, exit inverted Cat. #: 6.1.3 K Factor: 24 Total K: 24

  • Figure 8 — Zone C

Description: 2 of 8-point roll followed by opposite-direction 1¾ negative snap rolls, exit upright Cat. #: 1.1.4; 9.8.3.1; 9.10.3.7 K Factor: 2; 3; 18 Total K: 23

  • Figure 9 — Zone E

Description: Reverse Shark's Tooth; 2-point roll followed by opposite-direction ½ positive snap roll on 45° upline, pull to vertical downline, 1 roll, exit upright Cat. #: 1.14.1; 9.9.2.2; 9.1.5.4; 9.2.2.4 K Factor: 13; 8; 12; 11 Total K: 44

  • Figure 10 — Zone C

Description: Teardrop; 1½ positive snap rolls on 45° upline, 5/8 outside loop, 1½ rolls on vertical downline, exit upright Cat. #: 8.5.9.1; 9.9.2.6; 9.1.5.6 K Factor: 17; 16; 10 Total K: 43

  • Figure 11 — Zone E

Description: Gold Fish; 1½ rolls on 1st 45° upline, ¾ inside loop, 4-point roll on 2nd 45° upline, exit upright Cat. #: 7.2.0.1; 9.1.2.6; 9.4.2.4 K Factor: 14; 12; 13 Total K: 39

Total K: 420

2001 Sportsman Known Sequence

  1. Figure 1 — Zone C

Description: Figure 9; 1 roll on vertical upline, ¾ inside loop, exit upright Cat. #: 8.3.3.1; 9.1.1.4 K Factor: 11; 12 Total K: 23

  1. Figure 2 — Zone E

Description: Hammerhead, 2-point roll on vertical downline, exit upright Cat. #: 5.1.1; 9.2.5.4 K Factor: 17; 9 Total K: 26

  1. Figure 3 — Zone C

Description: ½ roll on 45° upline, pull to vertical downline, pull to 45° upline, push to upright level exit Cat. #: 1.29.1; 9.1.2.2 K Factor: 18; 6 Total K: 24

  1. Figure 4 — Zone E

Description: 1½-turn positive spin, exit upright Cat. #: 1.6.3; 9.1.1.6 K Factor: 10; 3 Total K: 13

  1. Figure 5 — Zone C

Description: 4-point roll Cat. #: 1.1.1; 9.4.3.4 K Factor: 2; 11 Total K: 13

  1. Figure 6 — Zone E

Description: Humpty Bump; vertical upline, ½ inside loop over the top, ¼ roll on vertical downline, exit upright cross box Cat. #: 8.1.1; 9.1.5.1 K Factor: 13; 2 Total K: 15

  1. Figure 7 — Zone E

Description: Humpty Bump; ½ roll on vertical upline, ½ outside loop over the top, ¼ roll on vertical downline, exit upright Cat. #: 8.3.1; 9.1.5.1; 9.1.1.2 K Factor: 15; 2; 8 Total K: 25

  1. Figure 8 — Zone C

Description: Inside loop, 1 roll at the top Cat. #: 7.5.1; 9.1.3.4 K Factor: 10; 8 Total K: 18

  1. Figure 9 — Zone E

Description: Shark's Tooth; pull to vertical upline, pull to 2 of 4-point roll on 45° downline, exit upright Cat. #: 1.18.1; 9.4.4.2 K Factor: 13; 5 Total K: 18

  1. Figure 10 — Zone E

Description: Immelman; ½ inside loop, 1 full roll, exit inverted Cat. #: 7.1.1; 9.1.3.4 K Factor: 6; 8 Total K: 14

  1. Figure 11 — Zone C

Description: Inverted reverse Shark's Tooth; pull to 2 of 4-point roll on 45° downline, pull to vertical upline, exit upright Cat. #: 1.15.4; 9.4.3.2 K Factor: 13; 5 Total K: 18

  1. Figure 12 — Zone E

Description: Teardrop; pull to vertical upline, push 5/8 outside loop to 45° downline, ½ roll followed by 1 positive snap roll, exit upright Cat. #: 8.6.8.1; 9.1.3.2; 9.9.4.4 K Factor: 4; 11; 16 Total K: 31

Total K: 238

2001 Basic Known Sequence

  • Figure 1 — Zone C

Description: Vertical upline, exit upright Cat. #: 1.6.1 K Factor: 10 Total K: 10

  • Figure 2 — Zone E

Description: Split Ess; ½ roll, ½ inside loop, exit upright Cat. #: 7.3.3; 9.1.3.2 K Factor: 6; 4 Total K: 10

  • Figure 3 — Zone C

Description: 1 roll Cat. #: 1.1.1; 9.1.3.4 K Factor: 2; 8 Total K: 10

  • Figure 4 — Zone E

Description: Humpty Bump; ½ roll on vertical upline, exit upright Cat. #: 8.1.1; 9.1.1.2 K Factor: 8; 13 Total K: 21

  • Figure 5 — Zone C

Description: Inside loop Cat. #: 7.5.1 K Factor: 10 Total K: 10

  • Figure 6 — Zone E

Description: ½ Reverse Cuban 8; ½ roll on 45° upline, 5/8 inside loop Cat. #: 8.3.2.1; 9.1.2.2 K Factor: 10; 6 Total K: 16

  • Figure 7 — Zone C

Description: Hammerhead, ¼ roll on vertical upline, ¼ roll on vertical downline, exit upright Cat. #: 5.1.1; 9.1.1.1; 9.1.5.1 K Factor: 17; 2; 6 Total K: 25

  • Figure 8 — Zone E

Description: Immelman; ½ inside loop, ½ roll, exit upright Cat. #: 7.2.1; 9.1.3.2 K Factor: 6; 4 Total K: 10

  • Figure 9 — Zone C

Description: Two-turn positive spin, exit upright Cat. #: 1.6.3; 9.1.1.8 K Factor: 10; 3 Total K: 13

  • Figure 10 — Zone E

Description: Shark's Tooth; vertical upline, ½ roll on 45° downline Cat. #: 1.18.1; 9.1.3.2 K Factor: 13; 4 Total K: 17

Total K: 142

Key Dates

(Events attended by AMA HQ staff and/or officers)

  • April 6–8

Toledo R/C Expo — Toledo, OH

  • April 25–29

Top Gun 2001 — West Palm Beach, FL

  • May 18–19

Southwestern Aeromodeling Conference — Arlington, TX

Transcribed from original scans by AI. Minor OCR errors may remain.