Clustered F's

[skaffgeorge2]

How many BP F motors can be clustered and still stay in the mid power range?If I move up to mid power I'm gonna wanna do this at some point.And does Estes sell individual 29mm tubes for motor mounts?

 

[Rocketjunkie]

2 to stay in mid power. Otherwise you go into high power due to over 125g propellant weight. I have an Ultimate that I regularly fly on 7 F15s from the high power pads.

And a 4 stage rack rocket.

 

[bad_idea]

@Rocketjunkie answered the number question. As to motor tubes, Estes aren't selling the tubes separately right now. BMS and other vendors carry it in various lengths. I buy it from BMS 34" at a time. Look for heavy-wall 29mm tube, usually about 1.21" OD. If you want to go lighter, you can buy thin wall tubing from Apogee and perhaps others, or use 30mm tube from BMS.

 

[skaffgeorge2]

Been trying to contact BMS through their website but it doesn't seem to be working for for me for some reason.Want to ask about some other things as well.

 

[bad_idea]

Try their email or phone. If they're traveling, they'll return your mail or your phone call in due time.

 

[Daddyisabar]

High Power - 4

High Power -3

Mid Power-2

 

[cornyaccessible]

Maintain a mid-power level by adding 2. If you exceed 125g of propellant weight, high power is engaged automatically. It's available geometry dash lite in a range of sizes from BMS and other retailers. I order it from BMS in 34-inch increments.