EZI-65 recommended reloads?

EZI-65 recommended reloads?

Post by 3:Steve_Post » Mon, 05 Jun 1995 04:00:00



I have my EZI in my hands and working on finishing it. (Interesting contrast,
I'm also trying to finish an Estes Terrier-Sandhawk...)

I've got the 38mm adapter and am looking for advice on what reloads are
good for this one. I'm guessing an H123 medium delay to start with. Good or
bad choice? And then what? H242? Then an I of some sort? For the time being,
I need to have shippable kits, in 38mm only.

Thanks!
Norman
--


 
 
 

EZI-65 recommended reloads?

Post by s.. » Mon, 05 Jun 1995 04:00:00


Quote:

> I have my EZI in my hands and working on finishing it. (Interesting contrast,
> I'm also trying to finish an Estes Terrier-Sandhawk...)

> I've got the 38mm adapter and am looking for advice on what reloads are
> good for this one. I'm guessing an H123 medium delay to start with. Good or
> bad choice? And then what? H242? Then an I of some sort? For the time being,
> I need to have shippable kits, in 38mm only.

Norm, The EZI will fly on all of your 38m relaods assuming that you built it
strong.  The H73 may be a little weakunless it is a calm day.  We fly them on
J275s!  Awsome.

Stu

 
 
 

EZI-65 recommended reloads?

Post by Ken Purce » Wed, 07 Jun 1995 04:00:00




Quote:
>I have my EZI in my hands and working on finishing it. (Interesting contrast,
>I'm also trying to finish an Estes Terrier-Sandhawk...)

>I've got the 38mm adapter and am looking for advice on what reloads are
>good for this one. I'm guessing an H123 medium delay to start with. Good or
>bad choice? And then what? H242? Then an I of some sort? For the time being,
>I need to have shippable kits, in 38mm only.

>Thanks!
>Norman

Norman you going to love your EZI.  I've flown mine on as little as a G64
without the payload section and absolutely no wind.  I think it flies best
on I211's but its a definite kick in the pants on J's. Another fun motor
that's not to expensive to fly on a regular basis is an H238 short delay,
wow that blue thunder shoots it off the pad like a bullet. The H238 will
only take it to about an average of 980 feet (at least that's what the
altimeter says), but it sure gets there in a hurry.  Good Luck.

Ken Purcell

ARCO Exploration and Production Technology
Plano, Texas

 
 
 

EZI-65 recommended reloads?

Post by Jonathan Sivie » Wed, 07 Jun 1995 04:00:00


Quote:



>>I have my EZI in my hands and working on finishing it. (Interesting contrast,
>>I'm also trying to finish an Estes Terrier-Sandhawk...)

>>I've got the 38mm adapter and am looking for advice on what reloads are
>>good for this one. I'm guessing an H123 medium delay to start with. Good or
>>bad choice? And then what? H242? Then an I of some sort? For the time being,
>>I need to have shippable kits, in 38mm only.

>>Thanks!
>>Norman
>Norman you going to love your EZI.  I've flown mine on as little as a G64
>without the payload section and absolutely no wind.  I think it flies best
>on I211's but its a definite kick in the pants on J's. Another fun motor
>that's not to expensive to fly on a regular basis is an H238 short delay,
>wow that blue thunder shoots it off the pad like a bullet. The H238 will
>only take it to about an average of 980 feet (at least that's what the
>altimeter says), but it sure gets there in a hurry.  Good Luck.

   I also like the H238 for my EZI.  Without the payload section and with a
G64-4 reload mine weighs almost exactly 3.3 lbs. so I can fly it without a
waiver.  I also like the H128 and on a very calm day the G75 (Blackjack)
makes a great flight.

Jonathan

----------------------------------------------------------------------
|  Jonathan Sivier          |  Secretary, Central Illinois Aerospace |

|  Flight Simulation Lab    |  Tripoli #1906                         |
|  Beckman Institute        |  Home Address:                         |
|  405 N. Mathews           |    5 The Summit                        |
|  Urbana, IL  61801        |    Champaign, IL 61820                 |
|  217/244-1923             |    217/359-8225                        |
----------------------------------------------------------------------

 
 
 

EZI-65 recommended reloads?

Post by ed.. » Mon, 12 Jun 1995 04:00:00


Quote:

>>>I've got the 38mm adapter and am looking for advice on what reloads are
>>>good for this one. I'm guessing an H123 medium delay to start with. Good or
>>>bad choice? And then what? H242? Then an I of some sort? For the time being,
>>>I need to have shippable kits, in 38mm only.

A 10 second dely may be a bit too short for an H123 in an EZI-65. Ejection will
happen at around 7 or 8 seconds. However, with the H242, a 10 second delay
might not be such a bad idea provided there isn't much wind. I don't own an EZI
but I have a rocket w
ith a very similar configuration (4 inch x 5 foot) and have flown it a few
times with H115s and I95s. Great motors!
 
 
 

EZI-65 recommended reloads?

Post by Walt Rosenbe » Tue, 13 Jun 1995 04:00:00


Quote:


>>>>I've got the 38mm adapter and am looking for advice on what reloads are
>>>>good for this one. I'm guessing an H123 medium delay to start with. Good or
>>>>bad choice? And then what? H242? Then an I of some sort? For the time being,
>>>>I need to have shippable kits, in 38mm only.

>A 10 second dely may be a bit too short for an H123 in an EZI-65. Ejection will
>happen at around 7 or 8 seconds. However, with the H242, a 10 second delay
>might not be such a bad idea provided there isn't much wind. I don't own an EZI
>but I have a rocket w
>ith a very similar configuration (4 inch x 5 foot) and have flown it a few
>times with H115s and I95s. Great motors!

Doesn't the EZI-65 have square fins?  I saw one shred on an I284 shortly
after it was launched  (motor hadn't burned out yet). The H242 may be too much
impulse for it.

--

I hate everything Lite - sounds like it is watered down!

 
 
 

EZI-65 recommended reloads?

Post by HI POWR » Thu, 15 Jun 1995 04:00:00


You should fly the EZI 65 on a H123 short delay. A H242 won't hurt the EZI
65. This high AVERAGE impulse motor only runs for a second at no more than
about 60 lbs thrust max. The I284 peaks at over 100 lbs and runs for
nearly 2 sec. When you burn a H242, you are using only 2 grains, 5 are
used in the I284. But the delay time should be about 8 sec with a H242. I
have found it is better to use the shorter delay when faced with a choice
between longer or shorter. Maybe add a little payload. No wind would be
best if a medium delay was chosen. An I161 medium delay makes a great
flight with this bird as well.

Jim DeMarco
Northwest Highpower

 
 
 

EZI-65 recommended reloads?

Post by Ken Purce » Thu, 15 Jun 1995 04:00:00




Quote:


>>>>>I've got the 38mm adapter and am looking for advice on what reloads are
>>>>>good for this one. I'm guessing an H123 medium delay to start with. Good or
>>>>>bad choice? And then what? H242? Then an I of some sort? For the time being,
>>>>>I need to have shippable kits, in 38mm only.

>>A 10 second dely may be a bit too short for an H123 in an EZI-65. Ejection will
>>happen at around 7 or 8 seconds. However, with the H242, a 10 second delay
>>might not be such a bad idea provided there isn't much wind. I don't own an EZI
>>but I have a rocket w
>>ith a very similar configuration (4 inch x 5 foot) and have flown it a few
>>times with H115s and I95s. Great motors!

>Doesn't the EZI-65 have square fins?  I saw one shred on an I284 shortly
>after it was launched  (motor hadn't burned out yet). The H242 may be too much
>impulse for it.

maybe it was poorly constructed, I've flown mine on medium J's several
times.  I can't imagine an h242 shredding one, but you never know.

Ken Purcell

ARCO Exploration and Production Technology
Plano, Texas

 
 
 

EZI-65 recommended reloads?

Post by red.. » Thu, 15 Jun 1995 04:00:00


My EZI-65 just arrived from LOC last night, and I look forward to
flying it on the various reloads that people have recommended. Since
LOC states that this rocket was specifically designed for AeroTech's
long burn I65, I assume that folks have had good results with that
as well, but as far as I recall, nobody has mentioned it. Anybody
got anything to report on whether this combo seems to work especially
well? Seems like it should give a rather different effect than, say,
an H242.

Dave Redell

 
 
 

EZI-65 recommended reloads?

Post by Frank Bur » Thu, 15 Jun 1995 04:00:00


Quote:

>A 10 second dely may be a bit too short for an H123 in an EZI-65. Ejection will
>happen at around 7 or 8 seconds. However, with the H242, a 10 second delay
>might not be such a bad idea provided there isn't much wind. I don't own an EZI
>but I have a rocket w
>ith a very similar configuration (4 inch x 5 foot) and have flown it a few
>times with H115s and I95s. Great motors!

Am I missing something here?  Why does the ejection happen at 7 or 8 seconds with an
H-123-10?  Delay time is from burnout.

Frank

 
 
 

EZI-65 recommended reloads?

Post by Jonathan Sivie » Fri, 16 Jun 1995 04:00:00


Quote:

>My EZI-65 just arrived from LOC last night, and I look forward to
>flying it on the various reloads that people have recommended. Since
>LOC states that this rocket was specifically designed for AeroTech's
>long burn I65, I assume that folks have had good results with that
>as well, but as far as I recall, nobody has mentioned it. Anybody
>got anything to report on whether this combo seems to work especially
>well? Seems like it should give a rather different effect than, say,
>an H242.

   I've not seen it, but the EZI should fly fine on an I65.  It will go very
high (~1 mile) though so do it on a day when there is no wind.  I have seen a
Thoy Falcon flown on an I65.  This is a very similar rocket to the EZI.  Our
prefect Gary Buck (a local legend) flew this combo last year at one of our
high power launches.  It wasn't a windless day, but Gary has the most
extraordinary luck sometimes.  The rocket went out of sight, tipping into the
wind as it went due to the low thrust of the motor.  We were all telling Gary
to get in his truck and start driving, as the rocket drifted down and landed
about 50 feet from the launchers.  This was definitely one of the most amazing
flights of 1994.

Jonathan

----------------------------------------------------------------------
|  Jonathan Sivier          |  Secretary, Central Illinois Aerospace |

|  Flight Simulation Lab    |  Tripoli #1906                         |
|  Beckman Institute        |  Home Address:                         |
|  405 N. Mathews           |    5 The Summit                        |
|  Urbana, IL  61801        |    Champaign, IL 61820                 |
|  217/244-1923             |    217/359-8225                        |
----------------------------------------------------------------------

 
 
 

EZI-65 recommended reloads?

Post by JJirvi » Fri, 16 Jun 1995 04:00:00


I happened to see the prototype EZI-65 fly at LDRS several years ago in an
I65 and it was truly spectacular.  Other great motors (expendable) are:
AT I65-10
AT J125-10
USR I65-8
USR J125-8
USR J200-12FS
USR I100-8FS
USR H55-8

Jerry

 
 
 

EZI-65 recommended reloads?

Post by ed.. » Sun, 18 Jun 1995 04:00:00


Quote:

>Am I missing something here?  Why does the ejection happen at 7 or 8 seconds with an
>H-123-10?  Delay time is from burnout.

I did not say H123-10. A stock LOC EZI-65 flown with an H123 will need a delay
time of 7 to 8 seconds. I think you read a little TOO deeply into my post. I
suppose I should have clarified it further by saying it will reach APOGEE 7 to
8 seconds after motor
 burnout when flown on an H123.

In response to the person who reported that he saw an EZI-65 shred with an
I284, that motor has nearly 2 1/2 times the impulse of an H242, thus it will
get it up to a much faster speed by motor burnout for those of you not clear on
this, the I284 burns for
 a little over twice as long as an H242). The higher the AIRSPEED of the
rocket, the more likely it is to SHRED. If you read that post and are now
having negative thoughts on flying a stock EZI-65 on an H242, fear not, for
your rocket will do just fine. Ju
st stand back so your ears aren't left RINGING.

Lizzie, who likes HIGH thrust motors every so often (every other flight).

 
 
 

EZI-65 recommended reloads?

Post by ed.. » Sun, 18 Jun 1995 04:00:00


Quote:

>I happened to see the prototype EZI-65 fly at LDRS several years ago in an
>I65 and it was truly spectacular.  Other great motors (expendable) are:
>AT I65-10

Seen it. Great flight!

Quote:
>AT J125-10

Seen it. Another great flight, while it was still within eyesight!

Quote:
>USR I65-8
>USR J125-8
>USR J200-12FS

Haven't seen it done.

Quote:
>USR I100-8FS
>USR H55-8

I don't think I've seen an I100 ever fly. I'm to guess "FS" is an acronym for
Firestarter?
H55? I've seen AeroTech H55's flown in EZI's, but not a USR H55.

Lizzie, who has stood by quietly watching, but started flying recently.

 
 
 

EZI-65 recommended reloads?

Post by s.. » Mon, 19 Jun 1995 04:00:00


Quote:

> I happened to see the prototype EZI-65 fly at LDRS several years ago in an
> I65 and it was truly spectacular.  Other great motors (expendable) are:
> AT I65-10
> AT J125-10
> USR I65-8
> USR J125-8
> USR J200-12FS
> USR I100-8FS
> USR H55-8

The I65 is a great motor (if a tad expensive).  All 38mm reloads would work
well (assuming the kit was built using good construction techniques).

I have seen EZI's on J275s; that is kind of neat since the rocket looks like it
is about to shread just before burn out.

I have also heard (from very reliable sources) that a stock EZI will NOT
take a J125 for more than 6-8 seconds ;-)

Stu