# some small rockets

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#### Rob Fisher

##### Well-Known Member
Heres a pic of 4 small fliers I picked up at hobby lobbys 1/2 off rocket sale a while back. Estes 220 swift, Quest pipsqueak, Estes firehawk & Estes bandito.

#### Rob Fisher

##### Well-Known Member
set the digital camera on close up to see if the pic would show more detail..........

#### Juaru

##### Well-Known Member
Nice looking rockets. I love the little guys too.

John (not Jon) Arthur

www.JonRocket.com

#### Rob Fisher

##### Well-Known Member
I think the Bandito looks like a small version of Aerotechs Initiator!

#### Karl

##### Well-Known Member
TRF Supporter
Yeh lol , I was just thinking the same thing!
-Karl

#### Donaldsrockets

##### Well-Known Member
Now, those are a lot of fun. I painted mine bright orange so that I could see them, especially Baby.

Get enough BT-20 and BT-50 body tubing and nose cones to make an upscaled trio that would fly on 18mm and 24mm motors.

Stick an E9-8 into a BT-50 Baby Blink and see how quickly that thing disappeared.

#### Rob Fisher

##### Well-Known Member
I have a squeak and knew the fins could be a problem so I put 2 massive fin fillets on each fin joint & have not had a problem with fins breaking loose at all. All I have ever launched it on are C motors. I have never lost site of it on C6-5's, but have lost site of it on C6-7's.

#### powderburner

##### Well-Known Member
You guys need to try designing/modifying your rockets in one of two ways to avoid banging fin tips on the ground.

First, you can design with unswept fins (or shorter fins) that are slightly forward of the back end of the rocket. Let the motor case stick out and be the lowest point. That way, at touchdown, the expendable motor gets beaten up before the rocket flops over and lands on the fins.

Second, you can design with an EXTERNAL anchor point for the recovery system. You locate the anchor for the tether so that the rocket hangs sideways (with expended motor in place) under the streamer. You can even design so that one selected fin hangs low, and then build that one out of stronger materials. When the rocket hangs sideways, this adds a little drag and reduces the descent rate (this is an old SD competition technique). Most of the time the tether attachment can be through the leading edge of a fin root, and you reinforce with a drop of epoxy on both sides. The tether (kevlar? nylon? linen shroud-line-type string?) is run up the outside of the rocket and tucks under the NC for flight.

#### Fore Check

##### Well-Known Member
Good points, powderpurner.

However, in my opinion, for small/light rockets, fin joints breaking can be completely avoided by using stronger glue (like CA) and applying good, strong fillets.

I have several minimum diameter 18mm rockets that have never had a problem even with failed recovery deployment at high altitude (*oops!*). The mass of the rocket(s) is low enough that the fin breakage can/will be avoided with stronger attachment.

Just my 2 cents.

#### Rob Fisher

##### Well-Known Member
2 or 3 large fillets will do the job.