Gorge Rocket Club Section 790

NAR Competition NRC Events for the 2021-2022 Contest Year

The NAR Contest Board is pleased to announce the NRC events for the 2021-2022 Contest Year:

  • 1/4A Streamer Duration
  • 1/2A Rocket/Glide
  • A Parachute Duration
  • A Helicopter Duration
  • B Eggloft Altitude
  • B Altitude
  • Sport Scale

These events have been selected by the NAR Contest Board and the NARAM-63 Contest Director per Sporting Code rule 13.1.3.  The 2021-2022 Contest Year starts on July 31, 2021 and ends on June 30, 2022.  Details on Sport Scale submissions and judging will follow prior to July 31st.

2021-22 NRC Contest Events Announced

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/2021/06/USMRSC_May-2021.pdf

If you have any questions please feel free to contact:

gorgerc790@gmail.com

Board of Trustee Meetings/Town Hall Meetings

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