Quantcast

FlisKits: New body tube extravaganza!

The Rocketry Forum

Help Support The Rocketry Forum:

jflis

Well-Known Member
Joined
Jan 18, 2009
Messages
15,353
Reaction score
34
After reviewing order habits, we have noticed a lot of folks ordering all 3 of our engine tube sizes (BT-5-0175, BT-20-0275 & BT-50-0275). It happens quite often, sometimes buying two of them in one order then coming back for the third set...

so, we've just announced the BT-MIX-ET (Engine Tube), which containes 3 each of all 3 of these engine tubes. The price is $4.95 which is $0.30 (or about 6%) off of the price of the 3 packs individually purchased.

jim
 

jflis

Well-Known Member
Joined
Jan 18, 2009
Messages
15,353
Reaction score
34
well, we *have* a BT-50-04 (4") that we could certainly use in place of the BT-50-0275

General question, would that be more desireable? the 4" tube *does* make it easier to use the Estes E engine, but the 2.75" is more "conventional"

jim
 

Sirius Rocketry

For the Serious Rocketeer
TRF Sponsor
Joined
Jan 18, 2009
Messages
408
Reaction score
3
you are kinda like me in that the Estes E is rather unconventional in it's length, and there is a nice step into MPR with the Aerotech reloadables. We chose to stick with the standard 2.75 length, and not complicate things like with spacers and all. However if you did want to accomodate Estes E's then you have to think about those spacers........


Where do ya go????


Dave
 

Stymye

Well-Known Member
Joined
Jan 21, 2009
Messages
7,568
Reaction score
4
unconventional?
I build nearly every D rocket for E capability

from what I gather here, a great many others do too !
 

BobCox

Well-Known Member
Joined
Jan 21, 2009
Messages
1,793
Reaction score
0
Me too. I set up just about everything I build in 24mm to run on E9's and then use the 1" adapter when running on a D12 or C11.
 

jetra2

Well-Known Member
Joined
Jan 25, 2009
Messages
2,792
Reaction score
2
BAH!

Spacers...heresy!

Just use a 1/4" masking tape thrust ring!

Jason
 

jflis

Well-Known Member
Joined
Jan 18, 2009
Messages
15,353
Reaction score
34
Well, for the most part i tend to build conservative models (no wise cracks from the peanut gallery... :p ) and stability typically isn't an issue, so i build all of my 24mm models to take D motors and I just let the E motor hang out the back, if i'm going to use one. NOTE: Does NOT work with the A.C.M.E. Spitfire nor the Drake... I said "typically" :)
 

Sirius Rocketry

For the Serious Rocketeer
TRF Sponsor
Joined
Jan 18, 2009
Messages
408
Reaction score
3
Originally posted by jflis
Well, for the most part i tend to build conservative models (no wise cracks from the peanut gallery... :p ) and stability typically isn't an issue, so i build all of my 24mm models to take D motors and I just let the E motor hang out the back, if i'm going to use one. NOTE: Does NOT work with the A.C.M.E. Spitfire nor the Drake... I said "typically" :)
Hang"em out the back!

Nothing a little noseweight can't fix!
 

JRThro

Well-Known Member
TRF Lifetime Supporter
TRF Supporter
Joined
Jan 18, 2009
Messages
4,014
Reaction score
0
Location
Houston, TX
Originally posted by jflis
well, we *have* a BT-50-04 (4") that we could certainly use in place of the BT-50-0275

General question, would that be more desireable? the 4" tube *does* make it easier to use the Estes E engine, but the 2.75" is more "conventional"

jim
Jim, if you did use the BT-50-04 instead of the BT-50-0275, you'd have all bases covered, and those who wanted to could just cut off the extra 1.25" of tube for their C11 or D-powered rockets. You might have to raise the price of the BT-MIX-ET to cover the extra $0.20 for the longer 4" tube, though.

Of course I have no idea what the relative numbers are of people who use the 4" tubes versus the 2.75" ones. Do past orders give any indication?

Just my 2 cents' worth, bearing in mind that I intend to never build anything with a motor bigger than 18 mm.
 

Latest posts

Top