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Estes 1/4A3T

  • Manufacturer: Estes
  • Designation: 1/4A3T
  • Short Name: 1/4A3
  • Motor Type: single-use
  • Delays: 3 seconds
  • Diameter: 13.0000 mm
  • Length: 45.0000 mm
  • Propellant Weight: 0.8300 g
  • Total Weight: 6.1000 g
  • Average Thrust: 2.3590 N
  • Peak Thrust: 4.9500 N
  • Total Impulse: 0.5900 Ns
  • Thrust Duration: 0.2500 s

Flight Log

DateRocket NameMotor(s)AltitudeNotes
2012-05-16John Kelley's Fliskit TumbleweedEstes 1/4 A3-3-
2012-04-221/4A3-3T- Perfect flight, great feather weight recovery. Very high.
2012-04-22Jeffrey Gortatowsky's Chute Howdy 13mm1/4A3- This is its 3rd flight and the first where the 16 inch dry cleaner plastic chute fully deployed. I...
2012-04-22 Jeffrey Gortatowsky's Magpie Version 1.371/4A3-3T- Crowd pleaser. Excellent flight with quite a bit of height. It is light after all. Featherweight...
2012-03-14Dean Booth's Estes 220 Swift - motor mount mod (2)Estes 1/4A3-3T- The teflon streamer stripped off during descent, resulting in a quick trip down. I found the...
2012-02-01Dean Booth's Estes 220 Swift - motor mount mod (2)Estes 1/4A3-3T- I loaded up a teflon tape streamer and shortened 1/4A motor. Heard a loud pop at ejection. Rear...
2011-12-17David Sindel's 3D Printed Rocket1/4A3-3-
2011-10-23 Dean Booth's Estes 220 Swift - motor mount mod (2)Estes 1/4A3-3T- Another flawless flight using the rear-ejection mod. Nice tracking smoke before apogee, recovered...
2011-10-05Dean Booth's Estes 220 Swift - motor mount mod (2)Estes 1/4A3-3T- Flawless operation on this maiden flight. I modified the Swift for rear ejection to aid in...
2011-08-20Glenn Weiss's Estes Mosquito1/4A3-3- Ejected just after apogee with NC turned sideways, shot back down to earth at an angle
2011-07-23Glenn Weiss's Estes Mosquito1/4A3-3- Recoved rocket and motor pretty close together
2011-05-31John Kelley's Fliskit TumbleweedEstes 1/4 A3-3- Engine hook caught on close pin stop. burned hole in close pin
2011-05-01 Jeffrey Gortatowsky's Chute Howdy 13mm1/4A3-3T- Great boost. Got the 16 inch chute out just fine... but it did not unfurl. It just streamered in...
2011-05-01Jeffrey Gortatowsky's Chute Howdy 13mm1/4A3-3T- Thought I would try again... tried packing the chute a bit differently... not a good idea. Great...
2011-04-30 Hans "Chris" Michielssen's Odd'l Rockets Cyclone1/4A3-2250 feet Perfect whistling boost and separation at ejection. Upper monocopter drifted to edge of field....
2011-01-23Jeffrey Gortatowsky's Zoomie1/4A3-3T- Boosted pretty well on a 1/4A3-3. Glide was pretty steep and straight ahead. Flew for about 10...
2010-12-29Brian Hoover's Estes Bandito1/4A3-3-
2010-12-29Brian Hoover's Estes Firehawk1/4A3-3-
2010-12-26Brian Hoover's 13mm Whirlygig1/4A3-3-
2010-12-26Brian Hoover's Estes Firehawk1/4A3-3- Angled rod into wind, bad idea - not enough altitude ejected just prior to impact
2010-12-26Brian Hoover's Estes Bandito1/4A3-3-
2010-12-26Brian Hoover's 13mm Whirlygig1/4A3-3-
2010-12-11 Moe Bertrand's Estes Birdie1/4A3-3- Another fine flight of my little Birdie
2010-11-06Brian Hoover's Estes Firehawk1/4A3-3- weak boost - poor motor
2010-11-06Brian Hoover's Estes Bandito1/4A3-3-
2010-10-23Glenn Weiss's Estes Mosquito1/4A3-3- Despite having flown it earlier in the launch my son wanted to fly it again today, so up it went...
2010-10-23Glenn Weiss's Estes Mosquito1/4A3-3- Nominal flight
2010-10-17Brian Hoover's Estes X-Ray1/4A3-3- too small for cargo. need 1/2a for these minimum. cargo pod came apart again.
2010-10-17Brian Hoover's Estes Firehawk1/4A3-3- ok, low flight
2010-10-17Brian Hoover's Estes Firestreak SST1/4A3-3- too small motor for this model, very low and ejected on ground.
2010-10-17Brian Hoover's Estes Bandito1/4A3-3- ok flight, low
2010-09-19Brian Hoover's Estes Bandito1/4A3-3- Great small field and little kid launch. delay was long but only option at the 1/4a power level...
2010-09-19Brian Hoover's Estes Firehawk1/4A3-3- Great for small fields and little kids. My 3 yr old loves to launch and retrieve this one as it...
2010-09-18Bernard Cawley's FlisKits Cougar 6601/4A3-360 feet Kinda dicey with late deployment. Landed very near the LSO table. Popped one fin and big nosecone...
2010-09-11Brian Hoover's Estes Bandito1/4A3-4- Much better delay this flight, might have just gotten a motor that went long last time. clean...
2010-09-11Brian Hoover's Estes Firehawk1/4A3-3- Nice flight, slight drift on descent, some singing on chute.
2010-09-11Brian Hoover's Estes Firehawk1/4A3-3- Good flight, landed within 3 feet of launchpad!
2010-09-09Brian Hoover's Estes Firehawk1/4A3-3- Good flight, seems to do better than the Bandito on the 1/4A motors. no damage.
2010-09-09Brian Hoover's Estes Bandito1/4A3-3- Good boost, long delay. OK flight, could really use shorter delay.
2010-08-03Jeff Lane's MPC Delta-Katt1/4A3-2- Pod separation on boost. Only happened once before, here it is again. At NARAM.
2010-08-03Jeff Lane's MPC Delta-Katt1/4A3-2- Two pod separations in a row. Wow.
2010-08-02Jim Bassham's Edmonds Aerospace Micro Ivee1/4A3-4- 1/4 A Boost glider contest. First flight of the day @ 40 seconds. Check in guy at the recovery...
2010-08-02Jim Bassham's Edmonds Aerospace Micro Ivee1/4A3-4- Second flight - 38 seconds. Trip Barber was LCO and I was in the same round as Chad Ring. 5th...
2010-07-13Dean Booth's Estes 220 Swift - LOST (1)1/4A3-3- Vanished again at apogee. I searched the ground in vain. I'll convert my next one to MMX.
2010-07-06Dean Booth's Estes 220 Swift - LOST (1)1/4A3-3- At apogee, the smoking motor casing flew off in one direction and the rocket simply vanished. I...
2010-06-30Dean Booth's Estes Gnome - RETIRED (1)1/4A3-3- My 1st BAR launch (after some 35 years)! I used the 1/4A just to shake down the rocket and launch...
2010-06-29Hans "Chris" Michielssen's Carded Downscale Cherokee T 13mm1/4A3-2- Carded downscale from plans by Greg Poehlein. Flew on a 35 yead old 1/4A3-2T engine and ignitor....
2010-06-05Jeff Lane's MPC Delta-Katt1/4A3-3- NAR's electrical system for NARAM failed, had to launch with Estes Porta-Pad electrics. Fairly...
2010-06-05Jeff Lane's MPC Delta-Katt1/4A3-3- 3/4 scale Katt. Trimmed more stall and less right turn, good boost, good separation, 25 seconds or...
2010-05-16Bernard Cawley's Alpha II HD1/4A3-3- Embarassing flight attempt. Up about 30 feet, then lawn dart behind pad with ejection after it was...
2010-05-16Mark Kulka's Aerospace Speciality Products Streamer Duration (13mm)1/4A3-3- 1/4A SDMR 1st flight - multi-round. (SEP)
2010-05-16Mark Kulka's Aerospace Speciality Products Streamer Duration (13mm)1/4A3-3- 1/4A SDMR 2nd flight. (SEP)
2010-05-16Mark Kulka's Estes Hornet Mini-Brute (Clone)1/4A3-3- 1/4A SDMR 3rd flight. Qualified!
2010-05-14Ron Lemke's FlisKits Whatchamacallit1/4A3-389 feet Clinometer used for altitude, baseline 200 feet.
2010-05-14Ron Lemke's FlisKits Whatchamacallit1/4A3-380 feet Clinometer used for altitude, baseline 200 feet.
2010-04-17Moe Bertrand's Phoenix Aerospace - 1/4A-EZ1/4A3-3- PRM-23 1/4A Boost Glide Event. Just 22.5 seconds aloft for the first go.
2010-04-17Moe Bertrand's Phoenix Aerospace - 1/4A-EZ1/4A3-3- PRM-23 1/4A Boost Glide Event. Just 25.6 seconds aloft for the second go.
2010-04-17Moe Bertrand's Phoenix Aerospace - 1/4A-EZ1/4A3-3- Sport flight of the 1/4A-EZ. 19.5 seconds aloft.
2010-04-17Jeff Lane's MPC Delta-Katt1/4A3-3- Stuck on rod, got half altitude, lawn dart just as ejection activated, no damage.
2010-04-17Jeff Lane's MPC Delta-Katt1/4A3-3- Got tangled in shock cord, came apart about 30 feet up, got an actual glide. 12 second flight wins...
2010-04-03Jim Bassham's Estes Gnome1/4A3-4- 1/2 A streamer attempt. 12 second flight.
2010-03-21Matt Gillard's Estes Mosquito1/4A3-3- Even on a 1/4A it shifts, saw an ejection puff of smoke, and then the recovery team found it 5...
2010-03-20Glenn Weiss's Estes Mosquito1/4A3-3- Spectator mentioned this sounds like a bottle rocket when the motor kicks! Landed fairly close to...
2010-03-20Moe Bertrand's Phoenix Aerospace - 1/4A-EZ1/4A3-3- PRM-22 1/4A-Boost Glide Event. Nice first flight of this little boost glider...pretty impressive...
2010-03-20Moe Bertrand's Phoenix Aerospace - 1/4A-Baby Bird1/4A3-3- Decent first flight of this little boost glider...not as good a performer as the 1/4A-EZ. 18.8...
2010-03-20Moe Bertrand's Phoenix Aerospace - 1/4A-EZ1/4A3-3- PRM-22 1/4A-Boost Glide Event. 22 seconds glide time.
2010-03-20Moe Bertrand's Phoenix Aerospace - 1/4A-EZ1/4A3-3- PRM-22 1/4A-Boost Glide Event. 39.85 seconds glide time.
2009-12-06 Team Tracy's FlisKits Nebula1/4A3-3- The flight was unstable. I think it was underpowered. We'll try a larger motor next time.
2009-10-17Jeff Lane's MPC Delta-Katt1/4A3-3- Straight up boost, nice glide, with one of the oddest things I've ever seen... as it nosed into...
2009-10-17Jeff Lane's MPC Delta-Katt1/4A3-3- Straight up boost, nice glide, second flight, no rolls this time. 28 seconds.
2009-10-16Jeff Lane's MPC Delta-Katt1/4A3-3- Perfectly straight up. First flight of a new build. Used Blacksky BT5 tubing and a 3/4 scale Delta...
2009-10-16Jeff Lane's MPC Delta-Katt1/4A3-3- Perfectly straight up boost. 2nd flight of the new 3/4 scale Katt. Added a little weight to the...
2009-10-16Jeff Lane's MPC Delta-Katt1/4A3-3- Again, perfect straight up boost. Added some epoxy to the fillet and surface of the lower right...
2009-10-16Jeff Lane's MPC Delta-Katt1/4A3-3- Perfect boost. Added little clay to the fillet of the l. l. wing tip to turn back to center and...
2009-10-13Jeff Lane's Jeff Vincent 1/4A Boost Glider1/4A3-3- Build the Jeff Vincent 1/4A glider from NAR contest plans. First flight arced over into the ground...
2009-10-13Jeff Lane's Jeff Vincent 1/4A Boost Glider1/4A3-3- After surgery to re-aim the power pod by shimming the front of the pod/glider joint surface and...
2009-10-13Jeff Lane's Jeff Vincent 1/4A Boost Glider1/4A3-3- After adjusting pod aim and fastening it with masking tape, it still arced over dramatically,...
2009-10-04 Team Tracy's Estes Quark1/4A3-3- 3rd flight. Added 4 in. of streamer made from wadding and tied 1 in. from nose cone to try to stop...
2009-09-13Team Tracy's Estes Quark1/4A3-3- 2nd flight. Nose cone separated, but rocket still lawn darted in, even thought there was now 18in...
2009-09-13Team Tracy's Estes Quark1/4A3-3- Modified with a blow nose cone by adding engine block and then epoxying 18in Kevlar to the engine...
2009-07-19 John Lee's Blue Maggie1/4A3-3- Good demo flight for vacation Bible School
2009-07-19 John Lee's Edmonds Aerospace Tinee1/4A3-3- Got all of about 15 feet up and then spit the motor. All I can figure is that it thought it was a...
2009-07-12Kathy Miller's Red Saucer1/4A3-3-
2009-06-20David Sindel's Estes Mosquito1/4A3-3- The poor little guy got hurt bad on the landing of a drag race, but it has been repaired and will...
2009-06-13 John Lee's HotRod Rockets Fruit Fly1/4A3-3- Good flight after repair
2009-05-31 Jason Orosco's Estes Screamer1/4A3-3- Good flight landed about 10 feet from pad.
2009-05-31 Jason Orosco's Estes Mosquito1/4A3-3- Nice flight.
2009-05-31Jason Orosco's Estes Quark1/4A3-3- Nice flight followed all the way down.
2009-03-21 John Lee's HotRod Rockets Fruit Fly1/4A3-3- Nice, low maiden flight. Ejection charge broke the shock cord but all pieces recovered.
2009-03-16Mark Grisco's Estes Mosquito1/4A3-3- 1/4 a is enough.
2009-03-13John Lee's Quarter A1/4A3-3- Exhibition flight for kids at museum
2009-03-03Mark Grisco's Semroc Thunderbee1/4A3-3- zips off the pad even on a 1/4 A.
2009-03-03Mark Grisco's Semroc Thunderbee1/4A3-3- hung up on pad so a low flight.
2009-02-15David Braatz's Estes Mosquito1/4A3-3- Left the pad like a bullet. We launched it at dusk so when the ejection charge blew, it looked...
2009-02-14 John Lee's Custom Rockets ATW - Anti-Tank Weapon1/4A3-3- I used a 13mm adapter. It was way under powered and ejected on the ground. No damage
2008-12-06Hank Helmen's Estes Firestreak SST1/4A3-479 feet Good boost. Good ejection , streamer no good. Hard landing on tarmac. NO substantial damage.
2008-11-22Todd Mullin's 1/4A PD1/4A3-3- 'Chute choked in tube. Good tumble recovery.
2008-11-22Todd Mullin's 1/4A PD1/4A3-3- Melted the 'chute. Good tumble recovery.
2008-11-22Todd Mullin's 1/4A PD1/4A3-3- Melted 'chute. Crunched paper shroud body tube.
2008-11-08John Lee's Estes Micron1/4A3-3- Maiden Flight. It launched perfectly. I lost sight of it on the way down. I didn't find it until...

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