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Estes 1/2A3T


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[Download Motor Data as a RASP Eng File]

The 1/2A3T (1/2A3) is a 75% 1/2A single-use motor from Estes.

This motor uses an Estes igniter.

  • Designation: 1/2A3T
  • Delays: 2,4 seconds
  • Propellant Weight: 2.0000 g
  • Total Weight: 6.6000 g
  • Average Thrust: 3.0306 N
  • Peak Thrust: 7.6200 N
  • Total Impulse: 1.0910 Ns
  • Class: 75% 1/2A
  • Thrust Duration: 0.3600 s

Flight Log

DateRocket NameMotor(s)AltitudeNotes
2017-11-26 Bill Eichelberger's Estes D.O.M. - Loadlifter 1-A1/2A3-2200 feet Arced slightly left, but recovered just slightly past the pad in short right. Streamer refused to ...
2017-11-26 Bill Eichelberger's Semroc - Baby Orion1/2A3-4250 feet That's more like it. Perfect flight and recovery.
2017-10-21 Richard Holmes's Mini Satellite Interceptor1/2A3-2- The cardstock Mini Satellite Interceptor also hadn’t flown in quite some time. I fed it the ...
2017-06-09Rob Hoffman's Firestreak SST1/2A3-4-
2017-02-20 Bill Eichelberger's Estes - Astro1/2A3-4250 feet Flight was nominal, but ejection charge caused the screw eye and nose cone to part company. Found ...
2017-02-20 Bill Eichelberger's Fishhead Rocketry - Cherokee A1/2A3-4250 feet Wiggled more than I'd have expected during boost. Recovery in deep center.
2016-10-18 Eric Lofgren's Estes Mini Mosquito1/2A3-3- First launch, up and gone, found after 20min search with two fins broken.
2016-09-02Rob Hoffman's Mini Max1/2A3-4T105 feet Nice low flight.
2016-07-23Rick Barnes's Mini Max1/2A3-2150 feet
2016-07-16 Richard Holmes's Uff Da1/2A3-2- I was double booked in the afternoon so I got right down to the flights I felt I had to do, ...
2016-07-16 Richard Holmes's Nymph1/2A3-2- Next my second glider entry, the Nymph, also on a ½A3-2T. I did some hand tosses and ...
2016-07-09 Steve Lindeman's Scorpion1/2A3-2- Short fast flight. Not much altitude. Parachute ejected about 15' from ground. Broke a bottom fin ...
2016-06-18 Richard Holmes's Callisto3x1/2A3-4- The launch theme was clusters, and I started off with the Callisto on 3 x 1/2A3-4T with Q2G2 ...
2016-06-09Dick Stafford's RAIS Stone I1/2A3-2-
2016-06-09Dick Stafford's RAIS Stone I1/2A3-2-
2016-05-28Glenn Weiss's Estes Javelin1/2A3-4- Nice straight boost
2016-05-28Glenn Weiss's Estes Star Trooper1/2A3-4- Good flight but we lost the nose cone, will replace
2016-03-26Chris Halinaty's Fliskits - Whatchamacallit1/2A3-4-
2016-03-26 Bill Eichelberger's Estes - Mini Big Red Max1/2A3-2150 feet Flight was straight up and down. Almost too perfect.
2016-03-26 Bill Eichelberger's Estes - Vampire1/2A3-2150 feet Straight flight, recovered to right of the pad.
2016-02-20Moe Bertrand's Sponge Bob Cubit1/2A3-4T- Cool flight!
2016-02-15Ken E. Coyote's WD31/2A3-2T- Test with RS bottom and shroud transition. Lifted off mostly straight, but wobbled quite a bit on ...
2016-02-15Ken E. Coyote's WD21/2A3-2T- Tried with no fwd trans and heavier nose. A bit wobbly, but okay flight.
2016-02-12Ken E. Coyote's "Well De-Finned"1/2A3-2T- Good first modified "full dress" flight. Went off rod straight, but then went angled a bit, but ...
2016-02-12Ken E. Coyote's WD21/2A3-2T- Test with "Toob". Bad flight...tumbled during boost with somersaults.
2016-01-24Ken E. Coyote's "Look! No Fins!"1/2A3-380 feet First launch of this rocket and second test of RAIS. Rocket rose straight up surprisingly quickly, ...
2016-01-09Hans "Chris" Michielssen's Carded Downscale Black Brant VB1/2A3-3250 feet Boost was great, the ejection didn't push out the streamer. With just the nose cone blown it fell ...
2015-12-12Neil Weinstock's Astron Elliptic II1/2A3-2T- Single-stage maiden test flight. Shock cord got wedged in the body tube; streamer deployed but on ...
2015-12-12Neil Weinstock's Astron Elliptic IIA10-0/1/2A3-4- First two-stage flight, everything flawless.
2015-11-04 Bill Eichelberger's New Way Space Models - Check It1/2A3-2150 feet Straight, low level flight with parawad recovery. First flight in full livery.
2015-11-04 Bill Eichelberger's Estes - Screamer (Ebay)1/2A3-4300 feet High, straight flight, probably too high for the field if any wind was present. Recovered in deep ...
2015-10-25 Bill Eichelberger's Semroc - Red Eye1/2A3-4150 feet Everything worked as expected. The pop-pod popped and was found behind me at second base. Red Eye ...
2015-10-10Mark S's Dragonfly1/2A3-2T- Motor pod stretched to 8" BT-5. Boost was straight, transition to glide was smooth. Glider rolled ...
2015-10-06 Chris Gonnerman's Lo Flier1/2A3-4T- Straight flight, minimal drift, good recovery
2015-10-06 Chris Gonnerman's Semroc Rawhide1/2A3-4T- Straight flight, minimal drift, good recovery
2015-09-27 Bill Eichelberger's Estes - Mini Max (Gold)1/2A3-4250 feet First flight since shotgun ejection charge broke the shock cord. This flight was perfect, straight ...
2015-09-27 Bill Eichelberger's Estes - Solar Warrior1/2A3-4200 feet This is the real Solar Warrior, not the new one that they couldn't even be creative enough to ...
2015-09-13 Bill Eichelberger's Estes - Mini Max (Gold)1/2A3-4250 feet The last flight ended with a shotgun ejection and a snapped shock cord. This time everything ...
2015-09-12Mark S's Tercel1/2A3-2T- Glider was too nose-heavy to transition; went straight into ground.
2015-09-12Mark S's Tercel1/2A3-2T- Removed at least half of glider's nose weight since last launch (about as much on nose as I had on ...
2015-09-12Edward Chess's Plan - Cyclone1/2A3-2- Straight boost, no rotation. Ejected energetically and both halves spun down properly. Good ...
2015-08-29 Rick Barnes's Lepus1/2A3-2400 feet A nice short but quick flight for Lepus. Landed nearby in the carrots w/o damage.
2015-08-23 Bill Eichelberger's Custom Rockets - Metrix (LOST)1/2A3-4200 feet Saw the flight and ejection. Some shock cord/streamer tangling, but recovered in one piece.
2015-08-23 Bill Eichelberger's Rockethead - Papa Blink (LOST)1/2A3-4350 feet Heard the ejection charge and saw the rocket for a moment, but lost it on the way down. Gotta ...
2015-07-04Rob Hoffman's Hawkeye1/2A3-2-
2015-06-20 Richard Holmes's Callisto3x1/2A3-4- The informal contest this month was a 1/2A 3-motor cluster duration, which is what I built the ...
2015-06-20 Daniel Draney's Star Blazer - Estes (TK-31)1/2A3-2- Perfect flight...Jackson flew
2015-05-24Rick Barnes's Mini Max1/2A3-2-
2015-05-16 Richard Holmes's Tail Burner Habanero [RETIRED]1/2A3-2- Separated at apogee, both parts drifted beyond rise and were lost in tall grass.
2015-04-01 Bill Eichelberger's Semroc - Triton1/2A3-2200 feet Saw the liftoff and heard the ejection charge, then a solid thunk behind me. The rocket landed in ...
2014-09-28 Richard Holmes's Mini Satellite Interceptor1/2A3-2- It went up on a 1/2A3-2T. I think. I didn’t have time to write down the motors I was using. ...
2014-08-03Hans Haase's Mini-Max1/2A3-2- Straight as an arrow, perfect deployment, returned within 20 feet of the pad. Very nice flying ...
2014-07-19 Richard Holmes's Deltie [RETIRED]1/2A3-2- I flew the Deltie again on the motor I thought I’d used the first time. And that might have ...
2014-07-19 Richard Holmes's Mini Satellite Interceptor1/2A3-2- I liked last month's Bob Harrington Mini Satellite Interceptor launch so I did a rerun. 1/2A3-2T ...
2014-06-21 Richard Holmes's Mini Satellite Interceptor1/2A3-2- Another first flight. I have no pictures of the flight but it was just fine, aside from its losing ...
2014-04-26 Bill Eichelberger's Semroc - Lil' Hercules1/2A3-2100 feet Recently converted to 13mm power, went unstable off the rod and tumbled. Motor wasn't seated all ...
2013-12-30Jaroslav Racek's Estes Bandito1/2A3-4-
2013-12-30Jaroslav Racek's Estes Firehawk1/2A3-4-
2013-12-30Jaroslav Racek's Estes Gnome1/2A3-4-
2013-12-30Jaroslav Racek's Estes Firehawk (2)1/2A3-4-
2013-12-30Jaroslav Racek's Estes Sky Dart1/2A3-4-
2013-12-30Jaroslav Racek's Estes Gnome (2)1/2A3-4-
2013-10-27 Bill Eichelberger's New Way Space Models - Check It1/2A3-2150 feet Wimpy motor, but I still wasn't convinced about the winds. I need to hit Hobby Lobby for some A10 ...
2013-10-20Jaroslav Racek's Estes Firehawk (2)1/2A3-4-
2013-10-06Jaroslav Racek's Estes Sky Dart1/2A3-4-
2013-09-08 Bill Eichelberger's Estes - Condor1/2A3-2125 feet Too low level a flight. Need to buy A3-2T motors the next time I hit Hobby Lobby, but an A10 ...
2013-08-29Jaroslav Racek's Estes Star Trooper (2)1/2A3-4-
2013-08-29Jaroslav Racek's Estes Star Trooper1/2A3-4-
2013-08-22Jaroslav Racek's Estes Star Trooper (2)1/2A3-4-
2013-08-18 Bill Eichelberger's Retro Rocketry - Mini Blue Max1/2A3-2250 feet Nose blow recovery. Higher than I expected.
2013-07-24 Bill Eichelberger's Estes - Mini Honest John1/2A3-2250 feet Perfect first flight. Recovered just to the right of the range.
2013-07-14 Rich DeAngelis's BetaA10-0/1/2A3-4440 feet A great morning for flying, though it was quite warm and humid. This was the final test flight of ...
2013-07-13Edward Chess's Apogee Components - Heli-Roc1/2A3-2- Straight boost, good prop deploy, inverted recovery.
2013-06-23Chris Halinaty's Starlight - Nano1/2A3-2- Used Estes 18mm to 13mm adapter.
2013-06-23Chris Halinaty's Estes Ninja1/2A3-2-
2013-06-09Rob Hoffman's Dink1/2A3-4283.7 feet
2013-05-25 Hans "Chris" Michielssen's Semroc ThunderbeeEstes 1/2A3-4t450' est. feet Two of the three fins have broken at the root edge. This model might be a good candidate for a ...
2013-05-25Chris Halinaty's Estes Ninja1/2A3-2-
2013-05-19Rob Hoffman's Puma1/2A3-4465.75 feet Shock cord separation. This is the RTF version I got from an Estes sale. Not sure if it is worth ...
2013-05-04 Bill Eichelberger's Estes - Sprite1/2A3-2300 feet Lost sight of it off the pad, but I heard the ejection charge. Landed on the third base line.
2013-04-21Glen's Mini Honest John1/2A3-2T-
2013-04-06 Jeffrey Gortatowsky's Arrowhead1/2A3-4T- Perfect flight. Used streamer.
2013-04-06 Jeffrey Gortatowsky's Magpie Version 1.371/2A3-2T- Perfect flight.
2013-03-24 Joseph Olexa's Estes EX-2001/2A3-2- Great flight with soft parachute landing. Will need to replace the shock cord before next flight.
2013-03-17 Hans "Chris" Michielssen's MPC Taurus1/2A3-4300 feet All was good until ejection when the round elastic shock cord burned through. Nose cone and body ...
2013-03-16Jaroslav Racek's Estes Mini Max1/2A3-2T-
2013-03-16Jaroslav Racek's Estes Star Trooper1/2A3-2T-
2013-03-10Rich DeAngelis's BetaA10-0/1/2A3-4429 feet This model got a new 7.5” parachute to replace the lost Mylar streamer and is now a few ...
2013-03-09Jaroslav Racek's Estes Star Trooper1/2A3-2T-
2013-03-09Jaroslav Racek's Estes Sky Dart1/2A3-2T-
2013-03-08Randy Ogata's Estes, X-ray (mini model)1/2A3-4T300-400 feet Maiden Flight. Estes Wadding. Ejection good, Streamer so-so, Wet grass landing saved rocket from ...
2013-02-10Jaroslav Racek's Estes Firehawk1/2A3-2-
2013-02-10Jaroslav Racek's Estes Bandito1/2A3-2-
2013-02-10Chris Halinaty's Estes Ninja1/2A3-2-
2013-02-10Chris Halinaty's Estes Mini Meanie1/2A3-2-
2013-02-10Chris Halinaty's Estes X-Ray1/2A3-2-
2013-02-09Jaroslav Racek's Estes Firehawk1/2A3-2-
2013-02-09Jaroslav Racek's Estes Gnome1/2A3-2-
2013-01-13George Beever's Scratch Astron SpriteEstes 1/2A3-4- Motor ejected as usual.
2013-01-13George Beever's Scratch Astron SpriteEstes 1/2A3-4- Motor ejected as usual.

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