2021 Launch Reports

Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec

January, 2021

The club's January launch was cancelled due to poor weather.

 

February, 2021

The club's February launch was cancelled due Covid-19 restrictions

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March, 2021

The club's March launch was cancelled due Covid-19 restrictions


April, 2021

April 24 : Better Late Than Never!
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Our first club launch of 2021 was delayed for three months and one week due to the Covid-19 pandemic and weather cancellations. In April, Covid conditions had improved enough for a club launch with people from Vermont, or locations near the border of Vermont, or anyone who is fully vaccinated. After the long hiatus, everyone was thrilled to be on the field launching rockets together again, and the launch day was a great success. As always during the pandemic, we greatly missed our Canadian CRMRC friends who were unable to attend.

25 people attended the launch, including some people who had learned about our launch through an article published in the Burlington Free Press on the day HERE

In addition, a representative from WCAX CBS Television attended the launch. The WCAX evening news of the launch day presented a short piece about CRMRC, including some footage of our launches. WCAX video is HERE

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HEALTH AND SAFETY
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We followed all of the Vermont and federal Covid-19 safety guidelines for outdoor events, including social-distancing, masks, and a formal written sign-in list for contact tracing. Hand sanitizer was also available on the RSO table.

Club President Howie D supervised the event and managed the LCO table. Other club members assisted with RSO duties, including the newly minted L2 Kevin K.

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SET-UP
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The first person on the field was John A, arriving about 8:20 am, and other club members began arriving over the next 30-45 minutes. Howie, John A, and Kevin K brought CRMRC equipment in their vehicles. Club members and guests parked along the south side of the farm road or else in the parking area at the top of the ridge. We took a little more time than usual in assembling the club equipment since we were rusty after many months of hiatus. We set up two blue pads with 1010 rails at 100 feet from the launch table and laid a cable to 200 and 300 feet in anticipation of K and L flights. The low-power rack was positioned at 50 feet from the launch table. Finally, at 10:34 am, the first rocket of the 2021 CRMRC season lifted off! We launched 28 flights over the next 6 hours, including a wide range of rocket types and motor classes. The event ended about 4:30 pm as everyone finished packing up and left the field.

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WEATHER AND FIELD CONDITIONS
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The air temperature was comfortable all day, starting at 52 degrees F (11 C) at 8:30 am, then rising to the mid-60s for much of the day, and ending at 67 degrees F (19 C) at 4:30 pm. The wind and clouds posed some challenges. During the mid-morning flights, the club anemometer showed gusty winds at about 7-12 mph with gusts up to 15 mph. The wind direction was primarily from the WSW, but gusts were quite variable. Both the wind speed and direction were somewhat unpredictable and varied by altitude.

As for cloud cover, we began the morning with concerns about some bands of relatively high-altitude cirrus clouds, but those clouds quickly dissipated. In fact, for most of the day, we enjoyed near-perfect blue skies with just a handful of stray high-altitude clouds occasionally floating around the edges of our airspace. But then later in the day, at approximately 3:00 pm, we began noticing low-altitude cumulus clouds forming in our area (some of these clouds appeared to have small rain shafts at 1000-2000 feet, but no precipitation reached the ground). The base of these cumulus clouds appeared to be approximately 1000 feet, and we adjusted our flight plans accordingly. This estimate of a 1000-feet ceiling was confirmed by Ben G with his launch of a 2-inch MAC Black Fly: This rocket had a simulated apogee of about 1000 feet, and in the actual flight it skimmed just below the lower face of one of these clouds.

The soil in the field was slightly damp, but rocketeers appreciate that softness since it can cushion the effects of hard landings. We noticed an occasional puddle of open water in the fields, but we did not have difficulties with mud. Some of the ditches had shallow water, but it was not difficult to find a dry path.

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AWARDS AND MILESTONES
=====================

Successful L2 certification: Kevin K with CTI J400 in his Madcow Super DX3. Congratulations, Kevin!

First mid-power flight: Michael W Estes Majestic on Estes F25

Closest-to-pad: Luke on his third flight of his Estes Der Red Max (C6-5), launched from the low-power rack, and landed near the high-power pad

Best metallic paint effects: Eric M and his sparkling gold/orange PML Callisto

Most variety of sizes of MAC Black Flies in one CRMRC launch day: Ben 2-inch Black Fly, James 3-inch Black Fly and James 6-inch Super Black Fly

Rocket most likely to be flying at any given moment at any given CRMRC launch: John A and his green 4-inch dia. Little John rocket

Most complex successful deployment design: Howie, Wildman Giz GW on K600 with nosecone designed to land separately from booster and a deployment bag for the main chute

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MOTORS
======

We flew a total of 28 motors in 28 flights (no staged or cluster flights). The smallest motor was the Estes A3-4T (2.5 Ns, flown by Tim in Estes Mosquito, Luke in Estes Swift, and Michael in Estes Firehawk). The largest motor was a CTI L805 (2833 Ns, flown by James in Mac Super Black Fly).

Motor distribution:
3 A motors
0 B motors
11 C motors
0 D motors
1 F motor
5 G motors
2 H motors
0 I motors
4 J motors
1 K motor
1 L motor

The most common motor class was C by far (11 C motors), and the most common C motor was the Estes C6-5, which was flown 9 times. The total impulse for the club was 8908.1 N-s (2002.6 lb-s), which is equivalent to a large M (74% M). The mean motor impulse was 318.1 N-s, which is equivalent to a large H (99% H).


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FLIGHT DETAILS AND LAUNCH VIDEO
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Video is HERE


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Member Tim
Estes Mosquito, yellow and black, 3 in. tall, 0.5 in. dia., 0.4 oz, tumble recovery
Motor: Estes A3-4T
Result: Good flight, vanished into thin air, but then later the rocket was found without its nosecone
Video at 0:14

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Member Luke
Estes 220 Swift, red, 3 in. tall, 0.5 in. dia., 0.4 oz, tumble recovery
Motor: Estes A3-4T
Result: Good flight but vanished into thin air
Video at 0:45

Estes Der Red Max, black and red, 16 in. tall, 1.6 in. dia., weight 3.8 oz
Motor: Estes C6-5
Result: Good flight
Video at 4:22

Estes Der Red Max, black and red, 16 in. tall, 1.6 in. dia., weight 3.8 oz
Motor: Estes C6-5
Result: Good flight
Video at 18:39

Estes Der Red Max, black and red, 16 in. tall, 1.6 in. dia., weight 3.8 oz
Motor: Estes C6-5
Result: Good flight
Video at 25:52

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Member Andre B.
1. Estes White Streak, white, 18 in. tall, 1.25 in. dia., 4.5 oz
Motor: Estes C11-3
Result: Good flight, also caused a dog to bark
Video at 5:17

2. Estes White Streak, while, 22.9 in. (the rocket seemed to grow from 18 to 22.9 inches since the first flight), 1.25 in. dia., 4.5 oz
Motor: Estes C11-3
Video at 22:12

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Member Keira:
Imagination, CRMRC saucer
Motor: Estes C6-5
Result: Good flight
Video at 9:01

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Guest Xander:
Super Saucer, CRMRC saucer with red, blue, orange, and white
Motor: Estes C6-5
Result: Good flight
Video at 12:13

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Guest Jay:
NCC-1701 Flyer, CRMRC saucer, white with Starship Enterprise marking
Motor: Estes C6-5
Result: Good flight
Video at 12:30

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Member Noah G
MAC Arcas, unpainted canvas phenolic, 40 in. tall, 2.2 in. dia., 2 lb 7 oz
Motor: CTI G68 White
Result: Good flight, landed near the shrub line on the north end of the east cornfield
Video at 14:02

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Member Eric M:
PML Calliston, orange, 24 in. tall, 2 in. dia., 2.1 lbs
Motor: CTI G69 Skidmark
Electronics: RRC2 set to 500 feet
Result: Good flight, although main chute deployed early
Video at 12:44

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Member Michael W
1. Estes Majestic, purple and silver, 30 in. tall, 2 in. dia., 11.8 oz
Motor: Estes F25-4W
Result: Good smooth flight on the Estes F25 with white flame and brown smoke. Apogee at approximately 2000 feet. The wind then blew the rocket about 3/4 mile due east, where it landed in the cornfield. After the boost, we lost visual on the rocket as it transited the Sun from our perspective. Fortunately, another person named Michael spotted the rocket as it was landing far out in the cornfield. Michael W and James successfully recovered the rocket.
Video at 0:56

2. Estes Farside, blue and white, 12 in. tall, 0.5 in. dia., 2.5 oz
Motor: Estes C6-5
Result: Good flight
Video at 4:59

3. Estes Spirit, red white and blue, 12 in. tall, 1.5 in. dia., 1.2 oz
Motor: Estes C6-5
Result: Good flight
Video at 15:30

4. Estes Firehawk, sliver and red, 12 in. tall, 0.5 in. dia., 1.1 oz
Motor: Ests A3-4T
Result: Good flight
Video at 21:36

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Guest Jasper:
1. Wildman DarkstarJr, red, 60 in. tall, 2.26 in. dia.
Electronics: PerfectFliteStratologger set to 550 feet
Motor: AT G75 Metalstorm
Result: Good flight and landing (maybe some slight instability during boost)
Video at 23:08

2. Wildman DarkstarJr, red, 60 in. tall, 2.26 in. dia.
Motor: AT H238 Blue
Electronics: MARSA 33
(no video)

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Kevin K
Madcow Super DX3, red white and blue, 54 in. dia., 4 in. dia., 7 lbs 4 oz
Motor: CTI J400 Smoky Sam
Electronics: JLCR set to 600 feet, Eggtimer Proton GPS tracker
Result: Good flight, successful L2 certification, apogee 3748 feet
Video at 9:25

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Member Ben G
1. Estes Patriot, red and white, 24 in. tall, 1.6 in. dia., 3.5 oz
Motor: Estes C6-5
Result: Good flight
Video at 5:41

2. Scratch-Built Patriot, red and white, 48 in. tall, 3.1 in. dia., 3 lbs 3 oz
Motor: Loki H144-10W
Electronics: PerfectFlite Put, JLCR set to 400 feet
Result: Good flight to 2202 feet, distinctive roar of the Loki motor, parachute did not fully inflate. Post-flight inspection showed that parachute had slightly melted itself together due to contact with ejection gases.
Video at 16:24

3. MAC Black Fly (stretched), 30 in. tall, 2.2 in. dia., 1 lb 13 oz
Motor: CTI G80-7 Skidmark
Result: Good flight
Video at 24:23

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Member John A:
1. Madcow Little John, green, 48 in. tall, 4 in. dia., 9 lbs 1.5 oz
Motor: CTI J354 White
Electronics: JLCR set to 500 feet, Featherweight GPS
Result: Good flight to 3584 feet, good deployment
Video at 18:00

2. Madcow Little John, green, 48 in. tall, 4 in. dia., 9 lbs 1.5 oz
Motor: CTI J381 Skidmark
Electronics: JLCR set to 500 feet, Featherweight GPS
Result: Good flight, apogee 3000 feet, good deployment
Video at 26:33

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Member James
1. MAC Super Black Fly, red and yellow, 84 in. tall, 6 in. dia., 29.1 lbs
Motor: CTI L805WH
Electronics: Double-redundant dual deploy with Altus Metrum (750 feet), RRC2L (600 feet), RRC2 (500 feet), and ride-along JL Altimeter3 and FlightSketch altimeter, and Jiobit Pet Tracker for GPS
Result: Good flight, apogee 5096 feet, max speed 395 mph, good smooth deployment of the elegant 10-foot diameter Spherachute, landed softly in the 2nd field to the north. Main deployment charge appeared to occur at 600 feet rather than 750 feet. The Jiobit Pet Tracker phone app showed that the rocket had landed in the middle of the small east-west farm road that leads out from the farm on the northeast side of our launch area.
Video at 6:05

2. MAC Black Fly, black and white, 36 in. tall, 3 in. dia., 3 lbs 1 oz
Motor: AT G74-4W
Result: Good short flight to 400 feet, good deployment, landed nearby in the ditch on the west side of the cornfield.
Video at 22:35

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Club President Howie D
1. Wildman Darkstar3, black, 84 in. tall, 3 in. dia., 10 lbs 12 oz
Motor: CTI J381 Skidmark
Electronics: RRC3
Result: Good flight to 2067 feet, good deployment, landed just west of the ditch between the southwest and southeast fields.
Video at 2:33


2. Wildman Giz GW, black with red, 72 in. tall, 5 in. dia., 21 lbs 10.5 oz
Motor: CTI K600 White
Electronics: RRC and PerfectFlite
Result: Good flight, apogee reported at 4385 feet and 4387 feet by the two altimeters, good deployment of main chute from deployment bag, and the nosecone landed separately as planned. The two parts of the deployment system landed within about 100 feet of each other in the cornfield, about 1/2 mile southeast of the launch site. Howie and Kevin retrieved the rocket without difficulty.
Video at 19:33


May, 2021

 

June, 2021

 

July, 2021


August, 2021


September, 2021

 

October, 2021


November, 2021

 

December, 2021


 




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