This is a downscale o' Larry Brand's "Bottle Bat 3.0" design that can be found here on RocketReviews.com.
Due t' t' fact that plastic soft drink bottles have been resized and no longer fit inside standard rocket airframe tubing, a standard BTH-80 nose cone was substituted.
This one is called "Big Pink" for obvious reasons. It has 29mm motor tube and all up minus motor/case it weighs about 16 ounces or about 17 ounces if a 1/8" quick link is used t' attach t' chute. T' fairin' on t' airframe conceals t' knotted shock cord anchor. Standard milspec 550 para cord was used on this rocket. T' tube fins are constructed with half doublers for strength t' prevent "dreaded tube fin flutter". Ahoy! Five minute epoxy be used throughout t' build.
Like most tube fin rockets, it's very wind resistant and climbs straight up. Due t' t' inherent high drag o' tube fins, this one won't even reach 2000' on an H128. This is okay if you like t' see t' WHOLE flight includin' deployment. Keep this low altitude performance in mind when selectin' recovery delays.
Minimum motor choice should be F52.
| Flight Date: | 2011-04-02 |
| Rocket Name: | Bottle Bat 2.6 (Tube Fin) |
| Flyer's Name: | K Sonesen |
| Motors: | G76-7 |
| Expected Altitude: | 1,350 Feet |
| Wind Speed: | 7.00 mph |
| Launch Site: | LUNAR - Snow Ranch |
| Actual Altitude: | 1,419 Feet |
All up weight (motor and Altimeter One) was 22.40oz. T' boost was very quick and "Big Pink" got out o' Dodge in a hurry. Apogee deployment and a sudden upper altitude wind shear carried t' rocket away from t' creek but it landed about well up on t' steep slope o' t' hill at t' east end o' t' flight line. I stood on t' road lookin' up at it workin' up for a long difficult climb until one o' t' junior rocketeers ran up and fetched it for me. I gave him $5 for his kindness.
| Stage | Motor(s) |
|---|---|
| 1 | Aerotech G76G-7 |
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