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[web/gag.com] / rockets / index.mdwn

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 ![Photo of Bdale and Robert with Horizon just before successful level 2 certification flight](./level2.jpg "Photo of Bdale and Robert with Horizon just before successful level 2 certification flight")
 
+<img src="level2.jpg" align="right">
+
 Building and launching model rockets is one of our favorite hobby activities 
 right now. While everyone in the family gets into the act in one way or 
 another, Bdale 
@@ -14,28 +16,7 @@ being father and son affairs...
 high power certification.  Robert is [NAR](http://nar.org/) Jr member 
 87104.  
 
-## Airframes ##
-
-### Bdale's L3 Projects ###
-
-* A custom rocket for NAR L3 certification, called 
-  [YikStik](airframes/yikstik).  This rocket flew beautifully but a
-  significant portion was lost and not recovered.  Feel free to look through
-  my [collection of photos](http://gallery.gag.com/rockets/yikstik/)
-  from the build and flight.
-
-* A second airframe for NAR L3 certification, this one based on a 
-  Polecat Aerospace [Goblin 10](airframes/goblin10) kit and capable of 
-  flying at more launch sites in Colorado.  Flew on 15 November 2008 at the 
-  SCORE Hudson Ranch launch site on an Aerotech M1297W
-  to 5953 feet AGL for a successful level 3 certification!  See
-  [photos by James Russell](http://picasaweb.google.com/jamesr2/StealeyMemorialLaunchSiteHudsonRanch)
-  and a [Jeff Lane video](http://cosrocs.org/all%20other%20videos/2008videos/11-15hudson/bdale_L3.mov) 
-  of the flight!  You can also have a look at my 
-  [photos of the build and flight](http://gallery.gag.com/rockets/goblin10/) 
-  from various contributors.
-
-### [The Rest of the Fleet](./airframes) ###
+## [Airframes](airframes) ##
 
 ## Clubs ##
 
@@ -86,10 +67,32 @@ See some of our launch photos in Bdale's <a href="http://www.flickr.com/photos/2
 
 ## Electronics ##
 
-A related project Bdale works on delivers fully open hardware and software 
-designs for rocketry avionics, under the name
+Lots of people make electronics for use in hobby rockets.  This is a brief
+list of only the things we've actually used ourselves.
+
+First off, Bdale and friends develop fully open hardware and software 
+designs for rocketry avionics, under the name 
 [Altus Metrum](http://altusmetrum.org).
 
+We also fly commercial altimeters in some projects.  The cheapest off the
+shelf altimeter we've used and often recommend to beginners is the 
+[Missile Works](http://www.missileworks.com/) RRC2-mini.  At about $80, it
+gets the job done for simple barometric control of dual deployment.  Note
+that while early versions had a firmware bug that we believe is at least 
+partially responsible for Bdale's loss of his first L3 project, recent 
+versions seem fine.  For another $20, the
+[PerfectFlite](http://www.perfectflite.com/)
+[miniAlt/WD](http://www.perfectflite.com/catalog/MAWD.html)
+adds the ability to records the barometric flight altitude profile.  Both
+of Bdale's L3 certs flew with one each of these two commercial altimeters,
+and we often use the MAWD as a backup for our 
+[TeleMetrum](http://altusmetrum.org/TeleMetrum) units during test flights.
+
+The [BeeLine TX](http://www.bigredbee.com/BeeLine.htm) boards from Big Red 
+Bee are radio tracking transmitters that just work.  They require an 
+[amateur radio](http://www.altusmetrum.org/Radio) license, but we think 
+anyone flying big rockets can and should get one of those anyway!
+
 ## Rocketry books we like ##
 
 Note that <i>Topics in Advanced Model Rocketry</i> is definitely not for