New Areo-Tech catalog is here !

[blackjack2564]

Just a reminder guys, the new catalog is available for download.

Has ALL the motors in it, even the new endburner Warps!

I keep a copy with me of the motor pages, at the launches.

For those of you that have never seen one, it has all the trust curves in lbs. to make picking motors for you rocket easy. On just 3-4 pages.

Just divide the total thrust by 5 [4.5 to be exact] and that's the weight of a rocket it will lift.

Example I-211 50lbs of thrust divided 5 = 10lbs rocket it will lift safely.

Great guide to keep handy for comparison purposes.

http://www.aerotech-rocketry.com/ On resources page. PDF. You can also find instructions for all motor reload assembly in case you lose yours, along with motor hardware drawings and dimensions , delay cross reference charts, Rocsim files for the kits, etc. by surfing this page! Lots of info.

[Peartree]

Just a reminder guys, the new catalog is available for download.

Has ALL the motors in it, even the new endburner Warps!

I keep a copy with me of the motor pages, at the launches.

For those of you that have never seen one, it has all the trust curves in lbs. to make picking motors for you rocket easy. On just 3-4 pages.

Just divide the total thrust by 5 [4.5 to be exact] and that's the weight of a rocket it will lift.

Example I-211 50lbs of thrust divided 5 = 10lbs rocket it will lift safely.

Great guide to keep handy for comparison purposes.

http://www.aerotech-rocketry.com/ On resources page. PDF. You can also find instructions for all motor reload assembly in case you lose yours, along with motor hardware drawings and dimensions , delay cross reference charts, Rocsim files for the kits, etc. by surfing this page! Lots of info.

Thread moved from The Watering Hole - This just seemed to fit better in the vendor section.

[Donaldsrockets]

Wow, an N3300R for the 98/15360 casing.

Now that should be a really awesome motor.

[jj94]

The new catalog is really nice. I hope they come out with some new smaller motors. I've been wondering if they have anything new in store for the 18mm, 24mm, and 29mm hobby lines for a while now.

[Garoq]

The new catalog is really nice. I hope they come out with some new smaller motors. I've been wondering if they have anything new in store for the 18mm, 24mm, and 29mm hobby lines for a while now.

We always have something new in the works. Lots planned for later this year.

[n3tjm]

I to want to see more loads for the smaller motors. especially the 18mm motor. I would love to see a D8W (moonburner) and a Fastjack load would be cool in the 18mm case.

[gizza2]

L339N Warp9 endburner for 98/2560... I WANT THAT NOW!!

[jj94]

We always have something new in the works. Lots planned for later this year.

Can't wait.

[Garoq]

New Areo-Tech catalog is here !

Hi Jim...it's AeroTech.

[blackjack2564]

Hi Jim...it's AeroTech.

I know... I know @##$$%^ sorry

Hey it was Sat morning....I was prepping to launch a Little Dog on a KBA I-301. and wanted to compare the thrust curve to a I -284. In a hurry.

At least I got it right in the link......where it mattered!

Heck I don't even spell my name right, half the time.

Jym

[Mikus]

For those of you that have never seen one, it has all the trust curves in lbs. to make picking motors for you rocket easy. On just 3-4 pages.

Just divide the total thrust by 5 [4.5 to be exact] and that's the weight of a rocket it will lift.

Example I-211 50lbs of thrust divided 5 = 10lbs rocket it will lift safely.

So this isn't correct? Or is this for BP motors only?

"To figure out if a particular rocket motor can safely lift your rocket, divide the number between the letter and the dash by 4.48. This will convert the average thrust from newtons to pounds. You will need at least 6 times the amount of thrust as your rocket weights with the motor installed.

Example: E9-x
9 divided by 4.48 = 2.01
2.01 divided by 6 = 0.33 Lbs

Your rocket should weigh no more then .33 Lbs or 5.33 ozs. "

[falingtrea]

So this isn't correct? Or is this for BP motors only?

"To figure out if a particular rocket motor can safely lift your rocket, divide the number between the letter and the dash by 4.48. This will convert the average thrust from newtons to pounds. You will need at least 6 times the amount of thrust as your rocket weights with the motor installed.

Example: E9-x
9 divided by 4.48 = 2.01
2.01 divided by 6 = 0.33 Lbs

Your rocket should weigh no more then .33 Lbs or 5.33 ozs. "

This is all just swag estimates. A 4 to 1 thrust to weight ratio (or greater) typically gives you a high enough speed off the rod or rail to make sure the rocket fins are working. You can do a better job of determining minimum motor thrust for a rocket by using a simulation program, especially one that specifically reports speed of the model at 3' to 4'.

You can also look at the thrust curve and make adjustments, too. Any curve with a high initial thrust will probably safely lift more weight than this basic rule calculates. A good example of this is the new I59 WN motor from Aerotech (see the thrust curve in the previous message) It has an initial 35 lb of thrust that could move a heavier rocket. Compare that to the I49N which only has a peak thrust of 14 lb.