July 13, 2007 Inside today s issue: July 13. Weather. CL Speed. CL Racing. CL Stunt. CL Carrier

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1 July 13, 2007 Inside today s issue: CL Speed CL Racing CL Stunt CL Carrier July 13 Control Line CL Speed D Speed Jet Speed CL Racing Mouse I Mouse II CL Carrier Carrier I Carrier II CL Aerobatics Precision Aerobatics Top 20 Advanced Aerobatics Finals RC Combat Final Tech Inspections for: Scale Combat Open Combat Events flying: Scale Combat Open Combat Scale Judging for: *2548 Friday Hi 82 F Lo 58 F Partly Cloudy Saturday Hi 85 F Lo 59 F Partly Cloudy Weather Sunday Hi 82 F Lo 59 F Clear Monday Hi 90 F Lo 63 F Partly Cloudy Weather courtesy of WTHR s Skytrack Weather at CL Speed Both AMA events flown on Thursday use tuned pipes to generate higher power. They are also flown on the single control system called monoline. The A Speed event uses.15-size piped engines for power. Models in this class often reach speeds in excess of 190 mph. To slow the models down, the line length was increased from 60 feet to 65 feet. Californian Jerry Rocha again took first place by setting a new record on his first flight at His backup flight was at mph. Second place went to Chris Montagino at mph. Third went to the MNM team at mph. All contestants in the event placed official times. First place in Junior A Speed went to James VanSant at mph. In the past the B Speed event often saw models exceed 200 mph. The event took a double hit when the lines were lengthened to 70 feet and high nitro was eliminated. Speed fliers have yet figured out how to overcome these changes and as a result speeds are nowhere near those of the past. Third place this year went to the MNM team at mph. The team used all of its attempts to reach this speed. Charles Whitler flew his upright pipe-equipped model to second place with a speed of mph. First place went to Bill Hughes who flew his OPS engine-powered model to mph. Three contestants were unable to place an official flight. James VanSant placed first in the Junior Division at mph. The North American Speed Society (NASS) again sponsored Sport Jet flying on Thursday as a provisional event. Turnout was heavy and many successful flights were placed. This year first through third places went Academy of Model Aeronautics International Aeromodeling Center, Muncie IN Web site: nats@modelaircraft.org Copyright Academy of Model Aeronautics 2007 Glenn Lee displays his all-metal vintage Sport jet powered by a new Jet Bill engine. 1 James VanSant gets ready to enter the pylon for a flight with his monolineequipped A Speed Model.

2 to the sidewinder model design created by the late Lenny Waltemath called the TARFU. The sidewinder design showed itself to be a very stable design in the high winds that blew all day during the event. In the top four places the Bailey Sport Jet engine powered two models and the Jet Bill engine powered two. Becky Wilk starts her Sport Jet using compressed air. Her husband Steve is the pilot. First place at mph went to Bill Capinjola, builder of the Jet Bill engines. Second place went to Jim Rhoades at mph using a Bailey engine for power. Third went to Dave Mark who used a Bailey to power his TARFU. Glenn Lee placed fourth flying his all-metal model powered by a Jet Bill engine. Dave Mark Left: The TARFU Sport Jet design by Lenny Waltemath takes first, second, and third. TARFU stood for Things are really fouled up. Left: Chris Montagino adjusts the OPS engine on Bill Hughes s first-place B Speedster. CL Carrier Thursday dawned with a light breeze that had grown to a wind by the time flying started. After we had been flying for an hour, the wind was even stronger at one point reaching an average of roughly 20 mph with gusts well above that. With the wind and some equipment problems early in the day that kept many of the early fliers from posting complete scores, Profile Carrier presented a challenge that few of the 13 competitors were prepared for. In fact, there were seven flights before Art Johnson managed the first 100- point landing of the day. There were only three landings all day that earned the full 100 points. Within the first hour, Bob Frogner, Art Johnson, and John Vlna all managed There was much interest in Pete Masur s line snapper and other aspects of Carrier models at processing on Wednesday evening. 2

3 complete flights and posted scores that put them one, two, three in the standings. Bob s occurred on his second attempt after being blown backward coming into the wind on his first flight. John Vlna also managed his complete flight on the second attempt. After that, the increasing wind took its toll, and there were only two other landings the rest of the day. It is interesting to note that four of the five models to complete landings were Bill Calkins designs: two Guardians and two Sea Vampires. Bob Frogner s winning flight was with his de Havilland Sea Vampire. Art Johnson flew a Grumman Guardian and John Vlna flew his Ki-76. In Sportsman Profile Carrier, sponsored by the Navy Carrier Society, there were two entrants completing flights. Howard Olson (Wisconsin) flew a Calkins Grumman Guardian to first place and Dave Hull (California) flew a Perry-designed MO-1. This was the first Carrier Nats for both Howard and Dave. Richard Perry Bob Frogner s de Havilland Sea Vampire lifts off on the flight that would carry Bob to first place in the Profile Carrier event. His early flight held off all challengers as the wind increased through the day. Above: Ted Kraver s entry was a Bell XFL-1 Aira Bonita designed by Bill Melton. It has a two-piece fuselage to facilitate shipping from Phoenix to Muncie for the Nats. Dave Hull (L) discusses his MO-1 model with Ron Duly at processing. Dave is relatively new to the event and Ron has been mentoring him Takeoffs with at least 12 mph headwind were the easiest part of the flight. Not a single model failed to get airborne. Howard Olson s Guardian is on its way to first place in Sportsman Profile Carrier. 3

4 CL Racing Wednesday was a very busy day and Thursday made up for it with a small turnout for both Rat and Texas Quickie. Rat started the day with a 70- lap qualifying race for Bob Whitney from Florida and Steve Eichenberger from Arizona. This year, after a couple of years of trial, the rules for AMA Fast Rat were changed to limit the engine size to.15 cu. in. It has taken several people this much time to sort out the new formula and develop competitive equipment. But Bob Whitney went a different route: using an F2C diesel-powered Team Racer. Steve Eichenberger s beautiful 15-powered Fast Rat. Ron Duly shows off his very nice modified Scorpion Texas Quickie Rat. Real modelers live here! What Bob found is that the superior reliability and pitting of the F2C equipment often makes up for a lack of ultimate airspeed. Contrasted to Bob s diesel-powered rig, Steve Eichenberger has developed a conventional Rat using an inverted.15 engine and minipipe. Steve s model is a beautiful example of what a Rat can be and is very fast, but its Achilles heel proved to be problems in restarts during the pit stops. In his 70-lap qualifying race, Steve was able to overcome this problem and turned a 2:54.92 compared to 2:56.19 for Bob. However, in the 140 lap final, Bob s better pit stops prevailed, yielding a final time of 6:02.95 while Steve turned in a time of 6: Texas Quickie Rat, an NCLRA event, followed Fast Rat. Most notable for this event was the absence of nearly all past winners. In the first feature race, Dave McDonald piloted Bob Oge s entry and turned in a Natswinning time of 7: Also in this race, Mike Greb ran a 7:09.28 good for second overall. In the second feature race, Ron Duly from Southern

5 California flew his beautiful modified Scorpion a Dave McDonald design to 7: One aspect of TQR is the strict rules on venturi and needle-valve body dimensions. In addition, engines may be modified by removing material but not adding. After the conclusion of the races, the three top finishers had their engines inspected for compliance. Venturis were removed and measured with a bore gauge, and the needle-valve bodies mic ed for diameter. All engines were within the specs for the event. Bill Lee Fast Rat winners (L-R) are Jason Allen who piloted for Steve Eichenberger; Bob Whitney and pilot Dave Hallas; and Dave Betz. Sunrise over Nats Headquarters. Ready for another day! While you re here, be sure to visit the National Model Aviation Museum and Museum Store! The store is offering extended hours during the Nats season: Monday thru Friday: 8 a.m. to 6 p.m. Saturday and Sunday: 11 a.m. to 5 p.m. Texas Quickie Rat winners (L-R) are Bob Oge in first; Mike Greb in second; Bob Whitney who pitted for Ron Duly in third; along with Dave Hull. 5

6 CL Stunt The winds of central Indiana blew a little gentler yesterday morning, but the air began to take its toll soon after the first round judges break. Many of the early round fliers were able to reconcile the lower scores flown on Wednesday. Who goes on is determined by a great flight on Wednesday and a similar, but hopefully better flight on Thursday. For those who were bitten by the wind demon on Wednesday, they could only hope to regain their own self-respect with a couple of good flights on Thursday. My own confidence returned with a more complete flight in the morning. At least two more models bit the dust Thursday. One of the Brazilians took a quick exit during his first-round flight. Another flier on Wednesday tipped a propeller and walked his model to the fields north of the L pad and put it down safely in the low-grown beans. Applause rang out as he saved his P- 47. During his Thursday flight, Windy Urtnowski s new model went inverted as planned and the plug came unlit as not planned. This could happen to anyone, but over the asphalt surface of the L pad, the apprehension factor is at its all time high with the pilot. Windy too, searched for the softer pillow of the grass or beans but within a rotation or two, his outer wing came in positive contact with an object just off circle four. The resultant crash broke off the outer wing and autopsied his carbon fuselage. Final tabulations were not written on the scoreboard as this column is being written. Now the Advanced pilots and the Open competitors are moved to their own respective circles. Advanced will determine who the winner is in that class today, Friday, July 13. The Open Class fliers will choose from the field of 20 the Windy Urtnowski s new Novanta was a beautiful stunt model and scored well in the appearance point s venue last Sunday afternoon. Windy s Novanta became rekitted on Thursday when the Bill Rutherford (R) sits with his grandson Ryan Young for their turn on Circle 2. Bill has officially handed off the name It s the Kid to his grandson Ryan. Jim Lee put in two safe flights with his Big Art O.S. Max 46 SF-powered Sunflyer on Wednesday. His lap times were in the 5.9-second range during both high-wind flights. fire went out while the model was inverted over the asphalt on the L pad. Subsequent movement to place the model over grass or beans failed when the outer wing cut a swath through an immoveable object on the sidelines. Middle, South, and further South are represented with the likes of Dale Barry, Orestes Hernandez, and columnist Allen Brickhaus. 6

7 best five to fly Saturday morning for the Open Finals and the Walker Cup Fly-Off. The Walker Cup is determined in a fly-off between the best Junior, Senior, and Open pilot at this year s Nats. The PAMPA meeting went smoothly and lasted only some 40 minutes. The executive meeting at 6 p.m. was only a brief overview of the main meeting. Vast United States Postal Service rate changes and the rising costs of printing have begun a search to cover the costs of mailing Stunt News to US members and those in foreign countries. No paid subscription is covering any of the printing and mailing costs. Several proposals were presented to the gathering for their possible future ways of cutting costs or raising dues. Warren Tiahrt and Shareen Fancher were lauded for their unselfish work and service to PAMPA. Warren will be retiring and Paul Walker has volunteered to fill his shoes for three years or more. Paul also hinted that more former Nats winners and top-draw fliers should give and return the favor of working at the Nats instead of flying in it all the time. Congratulations to Shareen s and Warren s retirement. Allen Brickhaus Bruce Perry of Canada carries his model to Circle 2 for an official flight on the L pad. Bruce is a fine fellow and an excellent Stunt flier. An unknown Brazilian flier is looking toward the bean field soon after he tipped a prop. This is a safer way of getting to the ground under these conditions. Wes Eakin (R) helps Eric Taylor for one of his official flights in Advanced. 7

8 Pilot Wes Eakin shows the best and quickest method of shortening and unbalancing a three-blade carbon-fiber prop. Jim DeYoung is launching. The wind can do nasty things to high-cost items from your pit box. Mike Palko (L) and pilot Dan Banjock view the flight in progress while waiting for Dan s own chance on the macadam. Phil Granderson carries his Divine Stunt model and steps on Circle 1 for an official flight on Thursday morning. Scores and Standings Please note that all scores posted in this edition of NatsNews 2007 are unofficial until final tabulation has been made. 302 A Speed 1 O JERRY W ROCHA NAPA, CA O CHRISTOPHER A MONTAGINO PARMA HEIGHTS, OH O JOEY MATHISON LAS VEGAS, NV O JOHN W NEWTON ROWLAND HEIGHTS, CA O ROBERT J MURPHY STOCKTON, CA O WILLIAM HUGHES BARTLETT, IL O GLEN J VANSANT LANGHORNE, PA ?? O GORDON L KENT MERRITT ISLAND, FL DNF 8 Brazilian André Tozim prepares for a flight in the great air Thursday morning. This is another of the P-47s brought from the Brazilian contingent.

9 302 JS A Speed 1 J JAMES D VANSANT LANGHORNE, PA J ASHLEY M WILK CRYSTAL, MN JS B Speed 1 J JAMES D VANSANT LANGHORNE, PA J ASHLEY M WILK CRYSTAL, MN CL Rat Race 1 ROBERT L WHITNEY 06:02.9 PALM BAY FL 2 STEVE EICHENBERGER 06:18.4 CHANDLER AZ 998 WILLIAM R LEE DNF CHANDLER TX 998 DAVID O BETZ DNF WARSAW IN 308 CL Formula 40 (corrected) 1 DAVID R MARK FENTON MI 1 CHRISTOPHER A MONTAGINO PARMA HEIGHTS OH 2 ALBERTO CABALLERO FORT LAUDERDALE FL 3 GLEN J VANSANT LANGHORNE PA 4 ALBERT L JONES GAINESVILLE VA 998 GLENN M LEE DNF BATAVIA IL 998 RICHARD S YATSON DNF CLEVELAND OH 998 GORDON L KENT DNF MERRITT ISLAND FL 998 CHARLES V WILLIAMS DNF MATTHEWS NC 321 Navy Carrier (Profile) 1 O ROBERT L FROGNER CAMPBELL, CA O ARTHUR J JOHNSON ROCKFORD, IL O JOHN R VLNA SILVER SPRING, MD O WILLIAM CALKINS SUGAR GROVE, IL O GARY R HULL CLEVELAND, OH O PETER O MAZUR SUGAR GROVE, IL O MARCUS P WARWASHANA WHITMORE LAKE, MI 96.4?? O DALE E GLEASON VALLEY VIEW, TX DNF?? O THEODORE KRAVER PHOENIX, AZ 0?? O RICHARD L PERRY ALBUQUERQUE, NM 0?? O RONALD D DULY BURBANK, CA B Speed 1 O WILLIAM HUGHES BARTLETT, IL O CHARLES J WHITLER CASTALIAN SPRINGS, TN O JOEY MATHISON LAS VEGAS, NV O JOHN W NEWTON ROWLAND HEIGHTS, CA O ROBERT J MURPHY STOCKTON, CA O CHRISTOPHER A MONTAGINO PARMA HEIGHTS, OH O GORDON L KENT MERRITT ISLAND, FL ?? O DAVID R MARK FENTON, MI DNF?? O CHARLES V WILLIAMS MATTHEWS, NC DNF?? O GLENN M LEE BATAVIA, IL 0?? O SANTO S RIZZOTTO WESTERLY, RI 0?? O GLEN J VANSANT LANGHORNE, PA 0 9

10 Sunrise over Nats Headquarters in Muncie, Indiana. Bill Lee photo.