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4th Annual MASA Summer Regional Contest
June 2 and 3, 2012

Nowthen, Minnesota
(NW Minneapolis/St Paul metro area)


The Minnesota Amateur Spacemodeler Association ( MASA), NAR Section # 576
 is pleased to invite all NAR members to our fourth annual regional contest.
The contest will be held at our Nowthen, MN launch site on Saturday and Sunday, June 2 and 3, 2012.
(Rain dates are Saturday and Sunday, June 9 and 10)

This is a NAR sanctioned competition.  The sanction number is 3013-12R.


This page last updated:  Tuesday, May 22.

National Weather Service forecast for the Nowthen sod fields area
weather.com forecast for Elk River, MN

Weather Underground forecast for Elk River, MN

Events:

  • G Egg Loft Altitude w/ altimeters, C & T div, WF 24
  • D Egg Loft Altitude w/ altimeters, A & B div, WF 19
  • A Helicopter Duration, WF 20
  • B Boost Glide Duration, WF 19
  • C Streamer Duration, WF 10
  • Open Spot Landing, WF 4  (If flying this event, it must be your FIRST contest flight of the weekend.)
  • Drag Race, C & T div, WF 2  (Saturday ONLY)
  • Set Duration (30 seconds), A & B div, WF 8  (If you compete in this event, you must make your official flight before flying any other event requiring timing. )

Note that the altitude event this year is using altimeters.

For more basic info on these events, please see the very bottom of this web page.

Details:

Contest fee is $5.00 per competitor.  (Payable at the field when you register.)  MASA members who are not NAR members are still welcome to enter and participate; please contact Mike if you have any questions.

Saturday

  • A contest range with central controller and pads will be set up.  Contest range hours will be approximately 9am until 5pm.
    The Drag Race event will ONLY be flown on Saturday.
  • A separate sport range will also be set up. The sport range will be "misfire alley" - bring your own pad & controller.  The waiver will NOT be active on Saturday.  This limits sport flights to < 3.3 lb and no more than 125 grams of propellant.

Sunday

  • A contest range with central controller and pads will be set up.  Contest range hours will be approximately 9am until 5pm.
  • A separate sport range will also be set up. The sport range will be "misfire alley" - bring your own pad & controller. [A small amount of club equipment will be set up on Sunday.]  The waiver will be activated on Sunday to allow high power flights.  Our waiver allows flights to 4,500 feet AGL.  Based on field size and distances from occupied buildings, the maximum practical flight altitude is 4,000 ft agl.  Field size supports up to a J motor.  If you are planning a high power cert flight for this day, please let the MASA president know in advance.

Contest flying has priority over sport flying on both days!

This contest will be conducted in accordance with the current U.S. Model Rocket Sporting Code and the NAR Safety Code.  You may find the "Pink Book" online at http://www.nar.org/pinkbook/

Contest Director:

Please contact Mike if you plan to enter the contest, or if you have any questions.

Mike Erpelding
NAR # 79922 HPR L2

16714 143rd Ave
Watkins, MN 55389

fizzbin@meltel.net
(320) 248-9907 [cell]

Location:

The contest will be held on a private sod farm near Nowthen, MN.  This location is just to the east of Elk River, MN and to the northwest of the Minneapolis/St. Paul metro area.

Google maps link


View MASA Launch Sites in a larger map 

For the GPS crowd, the field is at N45* 21.201', W93* 29.961'

The sod fields are surrounded on all sides by crop fields - typically corn or soybeans.  In early June, the crops won't be tall enough to pose too much of a problem.

Directions:
From the north metro:

Take US Hwy 10 West, or US Hwy 169 North to where they intersect.  After crossing under US Hwy 10, the road that use to be US 169 becomes Ferry Street N ( I believe also Co. Rd. 47). Take this road to the north. This road also gets renamed to St. Francis Blvd/ Co. Rd. 47 after going around two corners. Stay on Co Rd 47 until you reach Nowthen Blvd NW/ Co. Rd. 5. Turn left onto Nowthen Blvd NW/ Co. Rd. 5. Stay on Co. Rd. 5 to the town of Nowthen, MN.

Choice #1

On the north edge of town turn left onto 201st Ave NW/ Co. Rd. 65. ( see map )  Turn right onto Tiger St. NW/ Co. Rd. 82. This road switches to a gravel road after going by 205th Ave NW/ Co. Rd. 82. The farm is located on the driveway leading west with the sign "Private Drive" located at the intersection of Tiger St NW and 211th Ave NW.

Choice #2

Continue on Co. Rd. 5 through Nowthen, MN. Take a left turn on 211th Ave NW. This is a gravel road. ( see map)  The farm is located on the driveway leading west with the sign " Private Drive" located at the intersection of Tiger St NW and 211th Ave NW.

From I-94:

Take the Elk River / Rogers exit.  Take Hwy. 101 north past the Elk River/ Rogers VFW launch site. Hwy. 101 becomes US Hwy. 169. Cross US Hwy. 10 and the Mississippi River.  Continue on US Hwy. 169 until Co. Rd. 33. Turn right onto Co. Rd. 33. Continue driving on Co. Rd. 33, until you reach Twin Lakes Road. Turn right unto Twin Lakes Road. Continue on Twin Lakes Road to Co. Rd. 34/ 205th Ave NW. Turn left onto 205th Ave NW for 1.3 miles. Turn left onto a gravel road (the Tiger St. NW sign fell off the post).  The farm is located on the driveway leading west with the sign " Private Drive" located at the intersection of Tiger St NW and 211th Ave NW.

(Slightly less annoying route - from 169, take a right onto Main Street.  Go two blocks, then take a left at the 4-way stop onto Hwy 13.  Follow Hwy 13 until you get to Co. Rd. 34 and take a right.  Rest of directions are as above.)

Nearby Hotels:

As a courtesy to those competitors coming in from out-of-town, here are the names of several hotels within about 5 miles of the contest field.

  • Country Inns & Suites, 18894 Dodge St NW, Elk River, MN, (763) 241-6990

  • Holiday Inn Minneapolis NW-Elk River, 9200 Quaday Ave NE, Elk River, MN, (888) 897-0084 or (763) 241-1780  (has big indoor waterpark)

  • Landmark Motel, 1153 Main St NW, Elk River, MN, (763) 441-2592

  • Elk Motel, 13291 Highway 10, Elk River, MN, (763) 441-2552

Additional hotels are located at the junction of I-94 and Highway 101 (about 10 miles from the contest field).

Overnight camping is NOT allowed at the launch site.  There are some campgrounds in the general area.

Food:

There are a number of restaurants and stores in Elk River along Highway 169, about 4-5 miles from the contest field.  [Walmart is about 4.5 miles away.]  There are also two restaurants in the small town of Nowthen, about 2 miles from the contest field.

Other:

There will be a "porta potty" on site.

See you there!


For the full applicable rules, see the NAR Model Rocket Sporting Code.  http://www.nar.org/pinkbook/

The Basics:

  • Must follow model rocket safety code.

  • Rockets and motors must fall within the "model rocket" definition.

  • Must use commercial motors that are "contest approved".

  • Must use motors in the specified total impulse range. (Example, in B streamer duration, you must use a B motor. You are not allowed to use a motor smaller than B.)

  • Contestants are expected to help time the duration flights of other contestants; you may not be an official timer for your own flights. (Rule 15 has timing details.) Each duration flight has two timers; the flight score is the average of their two times.

  • Each of your contest rockets must have your name and/or NAR number on it.

  • All rockets must be presented for a safety check prior to flight; this includes a visual verification of the motor used.

  • In most events, you have two official flights. Normally, you have to return the entry to the officials after at least one of your flights.

  • You cannot "spit" or eject a motor in flight unless the ejected casing has an attached recovery device. (Rule 9.2)

  • Flights must be stable and safe, or else will be DQ'ed by the RSO.

  • In duration events, you may not eject the motor, or split the rocket into two or more unattached parts (exception for boost gliders).

  • If you are using a reloadable motor, see section 4.2 for special rules.

For more info, download Buzz McDermott's presentation from the April meeting, Contest Strategies for Casual Competitors - McDermott.pdf

Here are quickie summaries of the contest events.  For the full rules, follow the links!

Open Spot Landing http://www.nar.org/pinkbook/60_SL.html (WF 4)

  • Goal land the entry so that the tip of its nose cone is closest to a predetermined spot on the ground. Any type of recovery device is allowed.

  • May not be remotely controlled or guided, must deploy recovery device before touching the ground, may not separate into two or more unattached pieces. May use any size model rocket motor. Return is not required.

  • One official flight. If you compete in this event, it must be your first flight of the contest.

Drag Race http://www.nar.org/pinkbook/61_DR.html (WF 2)

  • This event will be run on Saturday ONLY !

  • C & T divisions only

  • Goal - achieve quick ignition and lift-off, low altitude, and long duration.

  • Use any single stage rocket using any size model rocket motor.  You must use the same rocket throughout the event.  Return is not required.

  • The event is a series of flyoffs (heats) between pairs of entries. The winner of each heat flies against the winner of another heat until the overall winner is determined.

  • Scoring - the winner of each heat shall be that entry which receives the higher number of points according to the following schedule:

    • One point for the first entry to achieve first motion;

    • One point for the entry achieving the lower altitude; and

    • One point for the entry that touches the ground last.

  • If the entry separates into two or more pieces, the first piece to touch the ground is counted. The winner of the last heat shall be declared the winner. The loser of the last heat shall receive second place. There shall be a flyoff for third and fourth places between the losers of the semifinal heats.

A Helicopter Duration http://www.nar.org/pinkbook/32_HD.html (WF 20)

  • Goal - achieve the longest flight duration time(s) using an autorotating recovery system.

  • "A" motor class. Single-staged rockets. Must be decelerated during descent by an autorotating recovery device. The resulting autorotation must be around the vertical axis.

  • Two flights (one returned). Score is sum of durations from the qualified flights.

B Boost Glide Duration <http://www.nar.org/pinkbook/36_BG.html> (WF 19)

  • Goal - achieve the longest flight duration time(s).

  • "B" motor class. One portion of entry must return to the ground in stable, gliding flight. Entry may separate into multiple pieces; only the glider is timed.

  • Gliding surfaces may not be made of flexible materials (plastic, etc).

  • Two flights (one returned). Score is sum of durations from the qualified flights.

C Streamer Duration <http://www.nar.org/pinkbook/31_SD.html> (WF 9)

  • Goal - achieve the longest flight duration time(s).

  • "C" motor class. Single-staged rockets with single streamer recovery.

  • Streamer must have L:W ratio of 5:1 or greater with minimum area of 100 cm2. Streamer connected to model with only a single line.

  • Two flights (one returned). Score is sum of durations from the qualified flights.

Set Duration (30 seconds) <http://www.nar.org/pinkbook/39_PRD.html> (WF 8)

  • Goal - achive as close as possible to a specified duration time.  May use any size model rocket motor and recovery system type.

  • A & B divisions only

  • The target duration time is 30 seconds.

  • One official flight. If you compete in this event, you must make your official flight before flying any other event requiring timing.

  • Model return is not required.

G Eggloft Altitude with altimeters http://www.nar.org/pinkbook/26_ELA.html (WF 24)

  • Goal - achieve the highest altitude.

  • C & T divisions only

  • "G" motor class.  Rockets may be single-staged or multi-staged.

  • Must carry one raw large hens egg with mass between 57 and 63 grams and measuring no more than 45 mm in diameter. Egg is provided to you before your flight.

  • Two flights (both must be returned). Score is the higher altitude of the qualified flights.  Egg must be removed in the presence of a contest official. DQed if egg is broken or cracked.

  • Contestants must supply their own altimeter (or borrow one from another contestant).  Buzz McDermott has several PerfectFlite ALT15KWD (Rev 1 and Rev 2) altimeters that he is making available for any contestant that has appropriate payload space for one. Also a couple of older altitude-only Adept altimeters.

  • Only commercially available altimeters approved by the NAR Contest Board and publicly announced as approved at least 60 days before any contest where they are used may be used in competition. These altimeters may not be altered or modified in any manner, including power source changes. An altimeter must meet the following requirements to be approved by the Contest Board: Uses arometric measurement techniques to record relative flight apogee altitude above launch pad altitude. Resolution of 2 meters or better in readout. Accuracy 2 percent of recorded altitude or 2 meters, whichever is greater. Sampling rate of 10 per second or greater. Audio or visual readout directly from the altimeter. Capable of being zeroed of previous flight data before flight.  For the list of approved altimeters, see http://www.nar.org/pinkbook/G_altimeters.html

  • The flight ready entry with the altimeter removed must be presented to the safety check official for inspection to verify the altimeter is unaltered and has been zeroed. The safety check officer may request the "owner's manual" for the altimeter if any questions arise concerning its operation or post flight readout. The make and model of the altimeter will be noted on the contestant's flight card under the "remarks" section. The altimeter's power source will be turned on in the presence of the safety check official, and zeroing will be verified after boot-up.
    The altimeter will now be placed in the model and secured in the presence of the safety check official. The entry is now ready for pad assignment.

  • The RSO or contestant will verify immediately prior to countdown that the altimeter is in "stand-by" mode.

  • The model and altimeter must be returned as recovered, unopened. The returns official and contestant both will concur on the reported altitude. Any other specific event rules may also apply.
    If the altimeter can NOT be returned, and the model is not DQ'd for any other safety or event rule violations, then that flight can be considered "Track Lost" and Rule 14.9 can be applied. If the altimeter fails to report an altitude, and the flight has not been DQ'd for any safety or event rule reason, then that flight can be considered "Track Lost" and Rule 14.9 can be applied.

D Eggloft Altitude with altimeters http://www.nar.org/pinkbook/26_ELA.html (WF 19)

  • Goal - achieve the highest altitude.

  • A & B divisions only

  • "D" motor class.  Rockets may be single-staged or multi-staged.

  • Must carry one raw large hens egg with mass between 57 and 63 grams and measuring no more than 45 mm in diameter. Egg is provided to you before your flight.

  • Two flights (both must be returned). Score is the higher altitude of the qualified flights.  Egg must be removed in the presence of a contest official. DQed if egg is broken or cracked.

  • Contestants must supply their own altimeter (or borrow one from another contestant).  Buzz McDermott has several PerfectFlite ALT15KWD (Rev 1 and Rev 2) altimeters that he is making available for any contestant that has appropriate payload space for one. Also a couple of older altitude-only Adept altimeters.

  • Only commercially available altimeters approved by the NAR Contest Board and publicly announced as approved at least 60 days before any contest where they are used may be used in competition. These altimeters may not be altered or modified in any manner, including power source changes. An altimeter must meet the following requirements to be approved by the Contest Board: Uses arometric measurement techniques to record relative flight apogee altitude above launch pad altitude. Resolution of 2 meters or better in readout. Accuracy 2 percent of recorded altitude or 2 meters, whichever is greater. Sampling rate of 10 per second or greater. Audio or visual readout directly from the altimeter. Capable of being zeroed of previous flight data before flight.  For the list of approved altimeters, see http://www.nar.org/pinkbook/G_altimeters.html

  • The flight ready entry with the altimeter removed must be presented to the safety check official for inspection to verify the altimeter is unaltered and has been zeroed. The safety check officer may request the "owner's manual" for the altimeter if any questions arise concerning its operation or post flight readout. The make and model of the altimeter will be noted on the contestant's flight card under the "remarks" section. The altimeter's power source will be turned on in the presence of the safety check official, and zeroing will be verified after boot-up.
    The altimeter will now be placed in the model and secured in the presence of the safety check official. The entry is now ready for pad assignment.

  • The RSO or contestant will verify immediately prior to countdown that the altimeter is in "stand-by" mode.

  • The model and altimeter must be returned as recovered, unopened. The returns official and contestant both will concur on the reported altitude. Any other specific event rules may also apply.
    If the altimeter can NOT be returned, and the model is not DQ'd for any other safety or event rule violations, then that flight can be considered "Track Lost" and Rule 14.9 can be applied. If the altimeter fails to report an altitude, and the flight has not been DQ'd for any safety or event rule reason, then that flight can be considered "Track Lost" and Rule 14.9 can be applied.

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