[RocketsNW] Motion: Revise TRA Research Safety Code

[Fred Azinger]

YES YES YES!!!
It is really hard to get a 133% increase in motor output.
I could see a 90% rule....seems we almost need that with commercial motors
variability of +/-10%...

Without such official relief from TRA, can OROC pad the waiver and then
exercise RSO/Prefect control on altitude limits within the OROC waiver?

FredA

-----Original Message-----
From: rockets-bounces at rocketsnw.com [mailto:rockets-bounces at rocketsnw.com]
On Behalf Of Robert Krausert
Sent: Sunday, January 31, 2010 12:59 PM
To: rockets at rocketsnw.com
Subject: [RocketsNW] Motion: Revise TRA Research Safety Code

TRA Prefects,
I find the 75% rule for research flight altitude limit extremely restrictive
towards research flyers. Believe that once an EXer has proven motor design
with consistent results, I feel the Prefect should be allowed to waive the
rule. LCO/FSO still have final say over flights. But the general rule seems
unfair to research. Someone brand new to rocketry has a rocket that sims to
the waiver, they are basically allowed to fly because they're using a
commercial motor. But someone with a consistent research motor and lots of
experience is held back to the 75% rule. Requiring TRA BoD approval seems
wrong. The Prefect knows the research flyers in the club, and can make a
better judgement.

Do you support this idea? I'll send to TRA if Prefects agree with the
recommended change. 
Cheers,
Robert

The Tripoli Rocketry Association Research Safety Code, version 2010 

CURRENT:
Section: 7.5.1
The maximum launch altitude for flights containing research motors shall be
75% of the waiver altitude established for the launch.

Section 7.5.1.1
The BOD may waive this requirement when it can be demonstrated (by past
performance, actual thrust curves, etc.) that the performance of the
motor(s) to be used shall not exceed the limits of the waiver.

Section 7.5.1.2 
Computer simulations without actual thrust data derived from one or more
actual test stand firings shall not satisfy the requirements of 7.8.1.1

RECOMMENDED CHANGE:
Section: 7.5.1
The maximum launch altitude for flights containing research motors shall be
75% of the waiver altitude established for the launch.

Section 7.5.1.1
A registered and active Prefecture may waive this requirement for
individuals when it can be demonstrated (by past performance, actual thrust
curves, etc.) that the performance of the motor(s) to be used shall not
exceed the limits of the waiver. Research flyer must be an active member of
Tripoli and certification level of at least 2. 

Section 7.5.1.2 
[Removed]

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