Gorge Rocket Club Section 790

NRC events for the 2019-2020 Contest Year

Per rules 13.1.1 through 13.1.2 of the United States Model Rocket Sporting Code (USMRSC), the NAR Contest Board has selected the following 6 NRC events for the 2019-2020 contest year, including NARAM 62:

1/2A B/G

1/2A SD

1/2A HD

1/2A PD

1/2A ALT

B Payload

Per the USMRSC, NRC launches with scores to qualify for Event Specialist and National Awards for the 2019-2020 contest year can be held from August 4, 2019 (the day after NARAM-62) until June 30, 2020.

Approved Altimeters

Contest Advice

http://www.nar.org/contest-flying/competition-guide/nar-rocketry-competition/

For information on the new contest book, here is the link:

https://www.nar.org/wp-content/uploads/2017/06/USMRSC_2019.pdf

  • Dates for the GRC 790 2020 Season Wyeast Middle School Launch dates: 

 Times for launch dates are from 9 am to 12 pm at the Baseball/South Small Soccer  field.  

The days are going to be on Sundays for 2020 from 9 am to 12 pm local time.

Below are the  dates and times:

March 8th, 2020                 9 am to 12 pm -NRC Contest 3 for 2020

April 5th, 2020                     9 am to 12 pm -NRC Contest 4 for 2020

May 10th, 2020                   9 am to 12 pm -NRC Contest 5 for 2020

June 21st, 2020                   9 am to 12pm -NRC Contest 6 for 2020

July 12th, 2020                    9 am to 12 pm

August 2nd, 2020,              9 am to 12 pm  2020-2021 NRC Events Pending

September 13th, 2020     9 am to 12 pm

October 18th, 2020           9 am to 12 pm

November 15th, 2020      9 am to 12 pm

December 13th 2020,       9 am to 12 pm

If you have any questions please feel free to contact me: Thompsonje@gmail.com

Daniel Peirce did a remarkable job with the Semroc Saturn 1B rocket

Check out the rocketry show at https://www.therocketryshow.com/
Check out the rocketry show at
https://www.therocketryshow.com/

http://wgvunews.org/post/national-association-rocketry-festival

http://www.spacesounds.com/

Hercules up on a G75-4
Photo provided by Jim Reed
Photo provided by Jim Reed

"Congratulations to Daniel Peirce for Certifying Level 1"

Daniel successfully launched his Mad Cow Honest John rocket on an H128-10W with great results:

Welcome to the Gorge Rocket Club Section 790 website.

If you have any questions please feel free to contact me: Thompsonje@gmail.com

  My Background

What is Thrust to weight ratio?

To safely launch a rocket the thrust to weight ratio should be at least 5 to 1

For example, if a rocket weighs 0.4 kg, and the motor has a thrust of 15 Newtons, is this safe?

Answer: The weight of the rocket is 0.4 x 9.8 = 3.9 N. Thrust is 15 N. The thrust to weight ratio is thus 15:3.9, or 3.8:1. This is less than 5:1 so the launch would be unsafe.

http://apollo17.org/

NAR http://www.nar.org/

nar_this_is_rocketry

http://wechoosethemoon.org/

Its a beautiful place for the hobby of rocketry

Its a beautiful place for the hobby of rocketry

dans-snake-jumper-1
Dans Snake Jumper Rocket

Rocket History Quiz:

early-rocketry-development-quiz

For the answers, email me:-)

If you have any questions please feel free to contact me: Thompsonje@gmail.com

High Powered Organization for those interested is:

Tripoli

http://www.tripoli.org/

What is this thing called World Space Modeling Championships:

Intro to rocketry part 1:

intro to rocketry part 2:

intro to rocketry part 3:

Propellant Types:

igniter installation:

Interesting site called "The Orbital Mechanics"

http://theorbitalmechanics.com/about/

Rocket Engineering and Science Technologies

Slide Rule Museum

1 Newton = 0.2248 pounds

1 Pound = 4.448 Newtons

Presentations

Estes has a new video that demonstrates hiw their solid BP motors work:

https://youtu.be/GXZEw7m-kIc