Gorge Rocket Club Section 790

Currently we cannot have any launch activities until after April 16th 2020 unless there is an official CDC update.

Fellow Rocket club Members -
First and foremost, thanks to all of our members who are helping to ensure that local communities are being cared for during this terrible pandemic. To all of the doctors, nurses, hospital staff, volunteers, and first responders - Thank You!
The COVID-19 policy will be extended until April 16. The updated policy is as follows:
Update on COVID-19 Policy for National Association of Rocketry
The recommendations from the White House and CDC on minimizing the risk and spread of COVID-19 continue to be that all "Avoid social gatherings in groups of 10 people."
This recommendation is pretty clear and should be followed by all to help slow down and stop this rapidly growing health concern.
Based on the current recommendations of the federal government; and increasingly many states and local governments that require people to stay home, the policy is to remain in effect until April 16, 2020:
  1. All NAR Sections shall postpone or cancel Section launches, meetings, and other group activities during this period.
  2. There shall be no organized launches, meetings, and other group activities of 10 or more persons during this period.
I will send an update on the policy on or before April 16.
I ask that all members please adhere to the intent and spirit of this policy and help to protect all who would be attending a launch from the possible infection of this virus.
Thank you and please be safe!
_________________________________________________


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:

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