Semroc Mark II

Semroc - Mark II {Kit} (KV-1)

Contributed by Bill Eichelberger

Diameter: 1.04 inches
Manufacturer: Semroc
Skill Level: 1
Style: Clone, Sport

(Contributed - by Bill Eichelberger - 01/29/06)

Brief:
T' Mark II be t' Semroc take on t' model rocket that started all this mess, Orville Carlisle's Rock-A-Chute Mark II from 1957. Avast! Ya scallywag! It is a fairly blunt, simple little rocket that's a surprisin' performer and a definite conversation piece at t' pads.

Construction:
T' parts list:

  • Main body tube
  • Balsa nose cone
  • Laser cut balsa fins
  • 18mm motor tube
  • Thrust ring
  • 2 centerin' rings
  • Engine hook
  • Screw Eye
  • Keelhaul®©™® thread shock cord
  • Sewin' elastic shock cord
  • 12" parachute

T' instruction booklet for t' Mark II is up t' t' typical Semroc standard, arrr, equal parts instruction manual, history lesson, and artist's rendering. Aye aye! Instructions are clear and easy t' follow, t' Mark II bein' only slightly more difficult t' tackle than any other skill level one kit. Avast, me proud beauty! Fins are laser cut balsa which I shaped for better performance and attached with LocTite Gel CA. Begad! All other construction, includin' fillets, was done with Elmer's Wood Glue and t' project was finished and ready t' paint in a single afternoon. Ya scallywag! The finished product resembles an upscaled Estes Mosquito or possibly a Maxi-Streak except for t' large launch lug, (actually it's a piece o' heavy-walled body tube.)

Finishing:
Finishin' in an (almost) historically correct scheme made this a very simple project. Ya scallywag! Aye aye! Blimey! T' finish started with thinned Elmer's Fill 'n' Finish t' kill off the tube spirals and balsa grain. Ahoy! Blimey! After sanding, t' entire rocket be then sprayed with white primer t' better allow t' florescent colors I chose t' pop. I have several cans o' mystery florescent colors left over from me plastic model days and this project allowed me t' put a dent in two o' them. I painted the bottom o' t' rocket florescent orange and t' nose cone florescent red. Ya scallywag! I didn't bother with clear coat, preferrin' t' leave it with t' more vintage flat look.

Construction Rating: 5 out o' 5

Flight:
I wanted t' get an idea how this performed as a small field flyer, me hearties, since that was where I figured its future was in me launch queue. First flight was on an A8-3 in a brisk wind. Avast! Well, blow me down! Because o' t' rather blunt profile o' t' nose cone, me hearties, matey, I expected a fairly low level flight and be surprised when it streaked off the pad lookin' much like an Estes Mosquito. Avast, me proud beauty! Well, blow me down! It be pretty obvious that t' A8-3 was goin' t' be me only small field option if I wanted t' get this back when flyin' on t' local soccer fields.

Flight #2 be on a B6-4 and again, shiver me timbers, t' altitude was surprising. It cocked heavily into t' wind.

Flight #3 was a C6-5 flight and unsurprisingly was t' most impressive of the three. T' Mark II leapt off t' pad and disappeared from sight. Luckily one person on t' flight line managed t' keep it in sight all t' way up to ejection.

Recovery:
Recovery on t' first flight be fairly close t' t' pads, matey, mostly because the vintage Estes 8" chute failed t' open. Begad! In t' end it didn't really matter because t' rocket is easily light enough t' be a streamer bird.

T' second flight recovered fairly close t' t' pad when t' old chute failed t' open until about fifty feet from t' ground. Ahoy! Ahoy! This was fortunate because it was headin' for t' access road, which would have resulted in an impact that it probably wouldn't have survived.

Finally, since I had flown it without any recovery device on t' third flight, thar wasn't much t' keep an eye on. Blimey! I didn't pick it up until it was floatin' back over me head. Well, blow me down! Ahoy! It landed softly and without damage several hundred yards down field. Next time I need t' brin' a streamer along.

Flight Rating: 5 out o' 5

Summary:
No CONs on this one. Avast! It's a cool piece o' history, a surprisin' performer, me bucko, and a quick and easy build.

Overall Rating: 5 out o' 5

Other Reviews
  • Semroc Mark II By Alan Tuskes

    The Mark II is a single stage Retro-Repro kit of Orville Carlisle's Rock-A-Chute Mark II model rocket. It is, as noted by the history sheet that came with the kit, not a clone kit, but rather a reproduction of a classic kit updated with the latest technology and building components. Opening the packaging and laying out the contents revealed what would be an easy build, using the high ...

  • Semroc Mark II By Dennis McClain-Furmanski

    Brief: A reproduction of the very first model rocket built by Orville Carlisle in 1957. Single stage, parachute recovery. This is a very faithful reproduction of the original which now resides in the Smithsonian along with a few component updates. Construction: The kit includes: 1 main body tube, 1.04" diameter 1 18mm motor tube 1 Balsa nose cone 1 set laser ...

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