|Vince's Geezer TARC entry sets on the pad awaiting launch (Click to enlarge).|
Vince's improvised V-2 TARC was first to fly. I must confess I was tempted to disqualify him at the outset, for the model was literally a V-2 with a BT-70 payload section taped to the top. However, it was creative, reminding me somewhat of the old White Sands Bumper program (WAC rocket on top of V-2), so I decided to let it go. It took Vince a while to get the bird into the air, as he had 3 ignitor misfires before it left the rail on the 4th attempt. It was a fantastic flight - altitude of 829 feet and a perfect duration of just over 41 seconds. The rest of us were showing grim faces as we stared at Vince's 29 score.
|"Fat Chance" and "Best Chance" - Duane's Geezer|
TARC entries (Click to enlarge).
|Eggsploder clears the rail under the thrust of 4 Estes|
BP motors (Click to enlarge).
The third TARC rocket to fly was Marc Loertscher's "Geezer Cheater." Tipping the scale at a whopping 750 grams (100 grams over the limit), it was disqualified at the outset, but Marc flew it anyway, just to see what it could do. He had developed a novel automated parachute reefing system for this model (which is why it was overweight), and you could actually see the chute being reefed and let out as the model descended from its peak altitude of 694 feet. Marc had programmed the thing to adjust the rocket descent rate so that it touched down in 42 seconds; it landed in 43, which our master engineer attributed to the programmed turn off of the chute control in the last 50 feet before ground contact. I was most impressed - and worried about facing this guy next year.
My turn had now come. It had taken me some time to prep the Eggsploder - stuffing the two eggs into the payload section and wiring up the 4 Quest ignitors in the 2 D12's and 2 C6's had taken more time than I normally spend getting TARC birds ready. But now she was set to go, and I hoped that the C6's would provide enough additional power to loft my 529 gram beauty to altitude (taken together, the 4 motors provided 63% of the impulse of a full F). I was also nervous after the cluster failure with my Deuces Wild a couple of weeks ago, so you can bet I checked those ignitors and the connections very thoroughly.
Turns out, I didn't need to worry...
|Eggsploder's altitude profile showing the variable descent rate (Click to enlarge)|
The last Geezer TARC flight was that of Duane's "Best Chance". Flying on an Aerotech F39 reload, it achieved an altitude of 629 feet - puzzling, as Best Chance's weight of 543 grams was a good deal lighter than that of Fat Chance, which had performed very well. Unfortunately, Best Chance was under the same "Curse of Recovery" as his predecessor; the parachute sheared away, causing the entire model to plummet into a tree at the edge of the road. The model was recovered, but Duane's second flight was also a DQ. He took some solace in the fact that the eggs had survived the fall undamaged - the Mayer egg protection system is almost fool proof.
|2018 Geezer TARC results (Click to enlarge).|
|The victor, holding his rocket and trophy|
(click to enlarge).
|Duane with the Flying Pig award (Click to enlarge).|
(My apologies for the lack of pics - I was busy timing and writing notes during the Geezer TARC flights)