Estes SM-3 Seahawk

Estes - SM-3 Seahawk {Kit} (2149) [1998-1998]

Contributed by Greg Deeter

Construction Rating: starstar_borderstar_borderstar_borderstar_border
Flight Rating: starstarstarstar_borderstar_border
Overall Rating: starstar_borderstar_borderstar_borderstar_border
Diameter: 1.84 inches
Length: 39.50 inches
Manufacturer: Estes
Skill Level: 2
Style: Scale-Like


The SM-3 Navy Seahawk was a skill level 2 Explorer Series rocket. Came in a nice box which can be used as a range box. Typical Estes, great instructions, nice quality, and one of their better kits. This kit is out of production (OOP) and I will bet I know why. This can be a dangerous kit to build. Reason being, the fins are RAZOR sharp! I am shocked that Estes ever made a kit with fins this sharp. If you are not careful, you can cut yourself seriously on the fins. See my picture where I cut the package display sheet on one of the fins, like a razor blade.

Boxed kit includes :

Plastic Nose Cone (55AC), Upper Body Tube (4.3") BT55, red tube coupler (55c), Slotted Upper Tube (BT55), Decal Sheet, Upper fin set plastic (4), Lower fins set (8 halves), centering rings, stiffener tube, launch lugs, (3) 5055 green adapter rings, adapter tube (50J), plastic tube adapter (2083), slotted lower tube (1835), engine mount tube (bt50h), engine hooks, engine block, engine spacer tube, 1/4"x24 shock cords (2), and (2) assembled 18" plastic Estes parachutes.

Instructions are excellent as well as the build. Pre-slotted tubes and thru-the-wall fins. The main lower fins are in halves and must be glued together. Plastic cement is suggested but I used CA entirely. This is an excellent skill level 2 kit that results in a very nice looking rocket. It took a few hours spread over a few days to build. It's not one you will complete in 30 minutes.

Finishing:
I think the most important issue with this kit is how razor sharp the fins are. Using gloves when building would be very smart, as one slip could result in very serious lacerations requiring urgent medical attention and likely stitches. When flying it is also very important to make sure that no one attempts to catch the rocket before it lands. That as well could most certainly result in cuts and injury. I like how this rocket looks, but for fairness I must give it a 1/5 due to the very dangerously sharp fins.

Construction Rating: 1 out of 5

Flight:
I tested it before paint with a C11-3. Impressive slow lift off, very true and nice. But that's not enough power. I will be popping an Aerotech D21-7 Blue Thunder into it on a low or no wind day, with a homemade 24 to 18 adapter. Will more than likely try the D12-5 next though.

Recovery:
I don't plan on flying this one much, due to the danger of the sharp fins. I used the stock chutes and cords that came with it. They seem to be fine. I would have upgraded the recover system with Kevlar cord mounted to the engine block, but I did not bother, as due to the dangerous fins, this one will not be one that I fly often at all.

Flight Rating: 3 out of 5

Summary:
Quality rocket in a nice box. Easy to build and strong. Great end result. But the fins are way too sharp and most certainly present a safety hazard. For that reason I can only give it a 1/5.

Overall Rating: 1 out of 5

Other Reviews
  • Estes SM-3 Seahawk By Daniel P. Loegering

    Recovers in two pieces by two separate 18" parachutes This rocket kit comes packed in a sturdy box from Estes so there is minimal chances of receiving crushed body tubes in a bag. All parts are typical Estes quality with nothing bad to say about the kit. Body tubes are pre-slotted for all fins.   The rear fins are two part plastic fins that result in a seam to fill if the builder ...

Flights

Comments:

avatar
Matthew D. (January 6, 2014)

Saw this rocket at a club launch and remembered this review.  The fins are exactly as sharp as they look. Not sure how this one got out of Estes safety testing.

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