From keithp at keithp.com  Mon Mar  3 10:01:45 2014
From: keithp at keithp.com (Keith Packard)
Date: Mon, 03 Mar 2014 10:01:45 -0800
Subject: [Rockets] OROC Wilsonville model launch this Saturday, March 8,
	12 to 3pm
Message-ID: <86iorvcgae.fsf@hiro.keithp.com>


Oregon Rocketry is hosting a Model Rocket Launch event at Memorial Park
in Wilsonville, Oregon on Saturday, March 8th, 2014. The range is open
for flights between 12:00pm and 3:00pm, setup begins at 11:30am.

Class 1 rockets under the new FAR101 unmanned rocket rules include; (1)
Uses no more than 125 grams (4.4 ounces) of propellant; (2) Uses a
slow-burning propellant; (3) Is made of paper, wood, or breakable
plastic; (4) Contains no substantial metal parts; and (5) Weighs no more
than 1,500 grams (53 ounces), including the propellant.

Because our launch site is only 800' across, NAR safety rules limit us
to D motors. You must also stay below our altitude limits. Conditions of
the site mostly limit us to 1000 feet or cloud deck. Ask the LCO if
restrictions apply and approval for flight.

Join us. Bring the family. Bring some rockets and have a great time
flying. No RSVP necessary, just show up. When you arrive at the park,
turn to the left and follow the road into the South East section of the
field.

 Wilsonville Memorial Park
 8100 SW Wilsonville Rd.
 Wilsonville, OR 97070

Fliers - all NAR rules apply, plus any additional rules / restrictions
for this site. A fliers meeting right at the start, so everyone is on
the same page for rules / restrictions. LCO tables are not for prep,
please use the available tables in the prep area. This is a sanctioned
launch event by National Association of Rocketry through NAR section 555
OREO (Steve Tarr).

Support staff; We are planning to arrive 30 minutes early to set
up. We'll have a six rod launch pad (has 1/8 and 3/16 rods), and
two LCO tables, flight line stakes, and a couple of launch
controllers. We need extra tables for the prep area. We'll hold a fliers
meeting right at the start, so everyone is on the same page for rules /
restrictions.

The current weather forecast looks like it'll be a bit wet, but without
a lot of wind. We'll have a canopy to shelter under if there are
showers, but bring rain gear and footwear suitable for the soggy lawn.

Here's the rest of the launch schedule for Wilsonville in 2014:

 * April 13, Sunday 2pm to 5pm, Public Launch
 * May 11, Sunday 2pm to 5pm, Public Launch
 * June 8, Sunday 2pm to 5pm, Public Launch
 * July 13, Sunday 2pm to 5pm, Public Launch
 * August 10, Sunday 2pm to 5pm, Public Launch
 * No launch in September, see you at Fillible's Folly!
 * October 12, Sunday 2pm to 5pm, Public Launch
 * November 8, Saturday 12pm to 3pm, Public Launch

Hope to see you there!

-- 
keith.packard at intel.com
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From keithp at keithp.com  Mon Mar  3 13:31:17 2014
From: keithp at keithp.com (Keith Packard)
Date: Mon, 03 Mar 2014 13:31:17 -0800
Subject: [Rockets] [RocketsNW] OROC Wilsonville model launch this
	Saturday, March 8, 12 to 3pm
In-Reply-To: <065501cf3719$728f0780$57ad1680$@net>
References: <86iorvcgae.fsf@hiro.keithp.com>
 <065501cf3719$728f0780$57ad1680$@net>
Message-ID: <861tyjc6l6.fsf@hiro.keithp.com>

Dennis S Winningstad <winningstad at comcast.net> writes:

> Keith, the age old question comes to mind. Please be patient enough to
> answer me as I forget!
>
> If my motor is bigger than "D" but the flight only goes 500 or 600' up
> (think flying saucer) why isn't that ok?

NAR doesn't care how high your rocket "will" go; all field sizes are
based purely on motor size in the model rocket safety code.

http://www.nar.org/NARmrsc.html

Here's the relevant table from that document:

LAUNCH SITE DIMENSIONS
Installed Total Impulse (N-sec) Equivalent Motor Type Minimum Site Dimensions (ft.)
0.00--1.25                            1/4A, 1/2A               50
1.26--2.50                                A                   100
2.51--5.00                                B                   200
5.01--10.00                               C                   400
10.01--20.00                              D                   500
20.01--40.00                              E                 1,000
40.01--80.00                              F                 1,000
80.01--160.00                             G                 1,000
160.01--320.00                          Two Gs              1,500

So, if we had just another 200', we'd be able to fly up to G
motors. Don't ask me to explain the rules, we just need to follow them.

-- 
keith.packard at intel.com
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