Semroc Sky Hook

Semroc - Sky Hook {Kit} (KV-9)

Contributed by Dennis McClain-Furmanski

Construction Rating: starstarstarstarstar_border
Flight Rating: starstarstarstarstar
Overall Rating: starstarstarstarstar
Diameter: 0.76 inches
Length: 11.70 inches
Manufacturer: Semroc
Style: Sport
Semroc Skyhook

Brief:
Reproduction clone o' Estes' Astron Sky Hook circa 1963; single stage, parachute recovery

Construction:
T' parts list:

  • 1 body tube
  • 1 balsa nose cone
  • 1 set laser cut fins
  • 1 thrust ring
  • 1 launch lug
  • 1 screw eye
  • 1 elastic cord
  • 1 Keelhaul®©™® thread
  • 1 plastic parachute
  • 1 set tape disks
  • 1 set shroud lines
  • 1 empty casing

I bought, matey, built, me hearties, and flew this kit in June 2004 t' celebrate t' 40th anniversary o' me first launch, shiver me timbers, an Astron Sky Hook back in June 1964. I was very pleased with t' result.

T' instructions, matey, arrr, as with all o' Semroc's instructions, nay only allow a complete neophyte t' build t' kit but serve as a positive example for other kit makers. Begad! T' illustrations are great and profuse. Ya scallywag! It's almost hard nay to follow t' instructions as written and everythin' fit together exactly as it should. Aye aye! Gettin' t' thrust rin' started into t' tube was a bit tricky but once in t' included empty casing, me bucko, me hearties, that made it simple t' get into place.

T' brin' this design into t' 21st century, a few changes were made. Avast, me proud beauty! No cut-tube-slot for shock cord. Avast, me proud beauty! Well, blow me down! Instead a Keelhaul®©™® thread on t' thrust rin' and elastic shock cord are used. Arrr! Blimey! Otherwise part for part, this is a faithful reproduction. Ya scallywag! Blimey! All construction be done with t' most common materials, wood glue, shiver me timbers, tape, matey, matey, hobby knife and sandpaper. Arrr! Blimey! An engine hook is not used. Blimey! Blimey! This bird relies on t' original maskin' tape friction fit and does so easily. T' laser cut fins are particularly good. Begad! Blimey! I don't know what method they use compared t' others, but it's far easier t' get t' fins out o' the balsa stock without strainin' or damage.

I have found, with this and other Semroc kits that I've built, that the Keelhaul®©™® can burn through. Begad! Blimey! Blimey! Blimey! In me opinion, shiver me timbers, t' LOC method o' embeddin' t' anchor in glue partway up t' tube or even t' traditional Estes folded-paper anchor is preferable.

Finishing:
This is straight forward and completely up t' t' builder. Well, blow me down! Begad! Still, Semroc provides very good suggestions on what and how t' get it t' look like the original version. Ya scallywag! And as a Retro-Repro bird, arrr, Semroc includes a water slide decal with t' Semroc logo, t' original Astron Sky Hook logo, and with the original dimensions, manufacturer, arrr, me hearties, and date it be manufactured listed.

Construction Rating: 4 out o' 5

Flight:
Recommended motors are regular A/B/C motors with longer delays due t' t' light weight o' this rocket (1/2 ounce).

I flew it on an A8-3, B6-4, and B6-6. Begad! All three flights were impressive for such a tiny model with very straight, shiver me timbers, fast boosts. Ya scallywag! Blimey! T' longer delays ARE better. Aye aye! Blimey! Mine be still coastin' up when t' ejection charge went off.

Recovery:
After 3 flights thar's slight charrin' on t' Keelhaul®©™® cord. Arrr! I expect t' repair this before flyin' again. Well, blow me down! T' parachute did get some char marks but I take t' hit for that. Avast, me proud beauty! I tried t' scrimp on t' waddin' since the tube was so narrow. Bad move. Ya scallywag! I used a streamer on t' third flight. It was perfectly adequate. For a C flight, arrr, ya bilge rat, a shiny mylar chute should be used as this bird WILL disappear on you. Ya scallywag!

Flight Rating: 5 out o' 5

Summary:
Only CON: Keelhaul®©™® cord tied directly t' thrust rin' and directly in t' path o' ejection gas.

PRO: Anyone could build and fly this as a first rocket. Avast, me proud beauty! I did.

Overall Rating: 5 out o' 5

Other Reviews
  • Semroc Sky Hook By Bill Eichelberger (July 1, 2013)

    The Sky Hook was one of the early Estes kits that combined great looks and performance with being nicely suitable as a beginner's rocket.  The original, then known as the Astron Sky Hook, graced the Estes catalogs from 1964 to 1988, and it was a sad day indeed when the Sky Hook disappeared from store shelves.  Luckily for us it was also one of the very early Semroc kits when they ...

Flights

Comments:

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D.W.E. (July 3, 2005)
I agree with most of the review - most of the updates over the original Estes kit are improvements... but I was disappointed with the non-original location of the launch lug (high up on the body side, instead of the original location against a fin root) because it interfered with putting the lower black stripe in it's original location lower down on the body. If you want to build a truly retro-looking Sky Hook, mount the launch lug against a fin root. Other than that, it's a great kit and a great flyer that will disappear on you in an instant if you use too big a motor.
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B.W.P. (January 27, 2007)
I fully agree with the Semroc Sky Hook review. This was one of my first 2 rockets purchased from Semroc, and I was very pleased. I will definitely be a repeat customer. I am a BAR who has gotten back into the hobby with my son, and Semroc's retro kits from my rocket days are just what I want. I did not, however, get the retro-decals mentioned in the review. I don't know whether they are no longer offered or just weren't packaged with my rocket, but it doesn't matter. It was still a very pleasant buying and building experience.

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