Deadline For Self-nomination For Board of Directors

Hi Everyone,

Just a reminder that the deadline for self-nomination to run for a seat on the ROC Board of Directors is this Saturday, August 31, at 11:59 PM.  This is a three year commitment and a great way to contribute to the organization. Nominations are open to all adult executive members. Please submit a statement/short bio and a photo to: bigbearrockets@cox.net
Thank you,
Mike Ostby,
ROC President

August 10 Launch to Start at 7AM

Since it is August and we will be on a desert lakebed, we are expecting high temperatures for the August 10 launch.
To help beat the heat, we will begin launching at 7 AM instead of our normal 8 AM.
We will also be monitoring the temperature on the lakebed and may end the launch earlier due to heat.
Please ensure you prepare for the conditions. A good hat, plenty of water, sunblock, etc. Bring shade if you have it!
Avoid caffeine, especially energy drinks! Sports drinks can be very helpful in staying hydrated.
We will be launching August 10, but a bit earlier than normal.
Hope to see you a week from Saturday!

Injury due to Drone Policy Violation

I want to remind everyone that attends a ROC Launch of ROC’s Drone Policy.

https://rocstock.org/2014/06/22/rocs-drone-policy/

At today’s launch there was a minor injury caused by someone flying a drone in the safety zone. This was absolutely a direct violation of our policy and rules.
At all ROC events, the only place drones are permitted to fly is south of the porta potties. And never over or around spectators. It is mandatory that these rules are followed.
Mike Ostby,
ROC President

Issues with Incorrect Assembly of Aerotech RAS Hardware

Two incidents, one potentially serious, occurred at the July 20 ROC launch due to flyers improperly assembling Aerotech Reload Adapter System hardware.

In the more serious incident, a rocket was launched with an improperly assembled motor. The rocket took a very long time to come up to pressure, and during this time sat smoldering on the pad. It then did pressurize and had a far less than adequate flight profile. After the flight it was determined that the RAS was assembled incorrectly, causing the fight problems and causing damage to the hardware.

The motor had been assembled with the spacer at the bottom of the motor against the nozzle. The spacer(s) should always be installed between the floating forward closure and the matching forward closure ring. The spacer is not designed or constructed to withstand the heat of combustion, and should never be in or as part of the motor combustion chamber.

In a second incident, an inexperienced flyer had incorrectly assembled a motor, receive incorrect advice resulting in reassembling the motor in a different wrong configuration, before finally getting the correct information and completing a successful Level 1 certification flight with the motor correctly assembled.

Incorrect assembly can cause unsafe flight profiles that may result in injury. In one incident today the incorrect assembly only resulted in hardware damage, and the second was recognized and corrected before flight.

Equally, perhaps more important, when giving advice on how to use rocketry hardware it is essential that the advice be based on following the manufacturer’s instructions.

Cesaroni hardware using spacers must also be assembled following the manufacturer’s instruction. Only the correct combination of spacers may be used, and the spacer(s) must be forward in the casing, ahead of the reload.

There are links below to the Aerotech instructions. The RAS is a great hardware system and increase the versatility of motor casings, but must be used correctly and safely!

Aerotech Instructions Page:
http://aerotech-rocketry.com/resources.aspx?id=4

29mm RAS Instructions
http://aerotech-rocketry.com/uploads/0b7924f1-f870-4bf1-ad1b-330609b44a63_29mm_reload_adapter_inst.pdf

38mm RAS Instructions
http://aerotech-rocketry.com/uploads/900941fb-4429-42b3-b686-abff01c8f083_38mm_reload_adapter_anchor_inst.pdf

54mm RAS Instructions
http://aerotech-rocketry.com/uploads/d80b9080-9f79-4012-93d1-696ae0787765_54mm_reload_adapter_inst.pdf

75mm RAS Instructions
http://aerotech-rocketry.com/uploads/229b9c98-d70d-46c0-b4fd-7e74ff4d98aa_75mm_reload_adapter_inst.pdf


Hope to see you Saturday!

Remember that we will be launching this Saturday, July 20, to celebrate the 50th anniversary of the Apollo 11 moon landing.

We expect to open the rang and begin flying at 7AM and continue to 1PM, weather permitting!

We expect Discount Rocketry, for all you low power needs, but no high power vendors.

Temperatures are expected to be about 95°F, with very low humidity and high UV index. Please bring plenty of water and prepare for summer on a desert lakebed.