This is Estes new multi-stage rocket with three simultaneously firin' upper stages. T' booster returns with tumble recovery, me bucko, t' three nearly identical upper stages return with tumble recovery also, arrr, after poppin' off t' nose cones. T' three upper stages are shaped t' form a hexagon when combined on t' booster stages. Aye aye! Each upper stage has three fins. T' booster uses a B6-0 or C6-0, while t' upper stages use t' A10-3T mini-motors.
Flight Date: | 2012-06-30 |
Rocket Name: | MIRV |
Kit Name: | Estes - MIRV {Kit} (2134) |
Flyer's Name: | Rich DeAngelis |
Motors: | B6-0/3xA10-3 |
Expected Altitude: | 300 Feet |
Wind Speed: | 6.00 mph |
Launch Site: | Fort Indiantown Gap, PA |
This was t' first ever flight o' this new and very different rocket. I wasn’t too worried o' t' breezes, since t' B6 is a strong booster even for a rocket that is 124 grams, and t' A10’s on a 33 gram rocket would do well. It did take quite a bit o' time t' prepare four motors and three shock cords, each had t' be stuffed into t' tiny BT-5 tubes. T' boost phase was as good as can be expected and all stayed together. Almost too fast t' be seen, t' three next stages left t' booster behind and sailed pretty far up almost out o' sight. I only heard and saw two o' t' three upper stages ignite and thought t' other one didn’t light or got stuck, ya bilge rat, but sure enough all three stages were flyin' high. So it turns out Estes got that right.
T' boost be fairly straight and t' second stages all continued up and didn’t wander far from each other either as they flew in a tight cluster. All three successfully popped their nose cones, and they all seemed t' come down together in a tight group, one after t' other. T' tumble/drag recovery worked fine and all three independent rockets landed within 20 or 30 feet o' each other. Arrr! Luckly, t' soft-ish foam bodies did nay suffer any recoil dings.
There be no altimeter on board so no detailed data could be obtained. Stagin' appeared t' be at about 150 feet, while t' upper rockets may have reached about 3-400 feet. Post-flight inspection revealed some interestin' anomalies though. First, t' booster landed on t' tent top o' t' launch control officer. Ya scallywag! It was in two pieces. T' two plastic parts o' t' ejection ductin' manifold had separated at t' glue joint – so much for Estes strongly worded recommendation t' nay use too much glue here! It may have broken when it struck t' canvas tent top and nay in flight, me hearties, since both parts were found together. Avast! It was all quite sooty.
As for t' upper stages, #3 had ejected its engine casing, although t' motor did eject t' recovery device just fine before it went away by itself. T' #1 (upper) stage appeared quite sooty in t' back. It also had a burn-through t' some o' t' maskin' tape which Estes recommends t' be used t' hold t' motor in. T' rocket's finish was burned a bit though. Aye aye! I might re-paint t' inside tail ends with a high-temperature paint.
Stage | Motor(s) |
---|---|
1 | Estes B6-0 |
2 | 3 x Estes A10T-3 |
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