NARAM-51 Event Tips Pages (draft) |
For NARAM-51, the Streamer Duration event is for A engine class. Streamer Duration combines the challenge of building a light rocket that can fly high (to a good altitude to descend from), with a streamer that can slow the descent as much as possible for a good duration time. In Streamer Duration, the model has to remain in one piece throughout the flight and cannot be staged. For the full rules for this event, please see the Streamer Duration Rules on the NAR web page, as well as the multi-round rules (15.12). Scoring - For Streamer Duration, the scoring is the total of two flights allowed, but at least one of those flights must have one Streamer model returned. Design considerations - There are trade-offs between the model's performance and the streamer's size. Low-mass and low-drag models may not be strong enough to survive boost. Increasing the size of the streamer means the streamer will need more room inside your rocket. A bigger streamer is also heavier, which could weigh down the model too much.
A list of plans and kits is included further down on this page. Streamers - Streamer choice and preparation is important. Simple crepe paper just doesn't do it. Some people use a certain grade of tracing paper, while others prefer to use 1 mil mylar. The tracing paper can perform well, but also can rip more easily than other materials. So, 1 mil mylar is recommended. For B power, 6" by 60" streamers are a good size.
Tips and info from other sources:
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Model Plans & Kits | Designer | Notes |
plan by Trip Barber | PDF of a 13mm SD model that can also be used for PD | |
ASTRE PD/SD model plan (NAR website) | plan by Jeff Vincent | PDF file of 13mm and 18mm PD & SD models |
ASP "Streamer Duration" Kit #KSDT - 13 (13mm) | ASP (Aerospace Specialty Products), Andy Jackson | Good competitive kit for 13mm engines. |
Straight Up - (1/2 A, A) Parachute or Streamer Duration, 13mm (specify type of recover device) | QCR - Qualified Competition Rockets, Ken Brown | Good competitive kit for 13mm engines. |
FlisKits - "Cougar 440 (13mm) and Cougar 660 (18mm) Streamer Duration kits | Jim Flis | 13mm and 18mm kits for Streamer Duration |
Apogee "Blue Streak" sport model kit (18mm) | Not designed for contest use, but it is a kit that can be entered and flown on an 18mm engine. | |
Pratt Hobbies "Super Six" kit. (18mm) | Doug Pratt | Not designed for contest use, but it is a kit that can be entered and flown on an 18mm engine. |
ESTES- "Wizard" sport model kit. (18mm) | Not designed for contest use, but it is a kit that can be entered and flown on an 18mm engine. | |
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Last Updated 7/3/2009