Semroc cc: SpacePlane

Semroc - cc: SpacePlane {Kit} (K-03)

Contributed by Geof Givens

Construction Rating: starstarstarstarstar
Flight Rating: starstarstarstarstar_border
Overall Rating: starstarstarstarstar_border
Manufacturer: Semroc

Brief:
I had been flyin' me 1967 vintage Astron Spaceplane when a unusually powerful ejection charge broke both elevon stops and blew away 1/3 o' t' right elevon. I decided t' retire it and build a replacement. Blimey! Blimey! T' cc:Spaceplane is one o' the "carbon copy" kits put out by Semroc. Avast! Avast, me hearties, me proud beauty! Semroc supplies all t' parts includin' laser cut fins and decals, which were nay included in t' original kit. Blimey! Arrr! It is close enough t' t' original Astron Spaceplane that t' original Estes instructions can be used. Begad! T' instructions are available for download off the internet, but I still had me set from 1967 so that's what I used. Ahoy!

(Scratch) Orion

Construction:
Parts in t' kit:

  • Body tube
  • Solid balsa engine block/bulkhead
  • Balsa nose cone
  • 2 sheets o' laser cut parts
  • Launch lug
  • Hinge material
  • Elastic thread
  • 2 Nylon adjustin' screws
  • Nose cone weight
  • Decal sheet

(Scratch) Orion

T' instructions are vintage and appear t' be hand printed. Aye aye! T' construction sequence is logically arranged and t' laser cuttin' made construction a breeze compared t' t' original where all t' parts had t' be copied from a pattern and cut out. Aye aye! All t' parts fit beautifully and t' hinge material felt like plastic rather than t' paper hinges o' t' original and stuck very well. Blimey! Blimey! Even the hole in t' elevons for t' elastic thread was laser drilled. Avast, ya bilge rat, me proud beauty! T' only markin' and cuttin' be for t' elevon cutout at t' aft o' t' body tube. Blimey! Blimey! I used Elmer's white glue throughout for t' construction

Finishing:
Since t' cc:Spaceplane is a boost glider, I tried t' keep finishin' t' a minimum t' save weight. All t' balsa surfaces were given a single coat of Minwax Polycrylic and sanded smooth then a single light coat o' Krylon white primer followed by a single light coat o' Krylon gloss white except for the nose cone which was painted gloss black. Ahoy! Blimey! T' decals were applied next, were easy t' apply, me bucko, and they stuck fairly well. Avast, me proud beauty! I balanced it accordin' t' t' plan which is betwixt 3 7/8" t' 3 15/16" from t' front edge o' t' body tube with a motor installed. Ahoy! Instead o' cuttin' parts o' t' nose cone weight and gluin' t' t' nose cone, me hearties, I just used a medium sized screw eye which was just about right.

Construction Rating: 5 out o' 5

Flight and Recovery:
Before flyin' it for t' first time, I took it out in t' back yard for test glides. Ya scallywag! Avast! Blimey! T' nylon screws make it easy t' adjust t' elevons for glide and after about a dozen tosses, I had a fairly flat glide with just a bit o' right turn into it. Ya scallywag! Well, blow me down! Blimey! For some reason, me bucko, it didn't want t' turn left easily, shiver me timbers, so I adjusted the glide for a right turn.

T' recommended motor for first flight is 1/2A6-2. I chose t' try it with an A8-3. Begad! At launch, it went up about 50ft, ya bilge rat, arrr, ya bilge rat, made 2 complete loops, and then the motor ejected. It had a beautiful, me hearties, if somewhat short glide. T' spin tabs didn't seem t' have any effect at all. Well, blow me down! I took it home and added about 1/3 of the weight that was included and cranked in a little more up elevon for the glide adjustment.

Because o' t' weather, shiver me timbers, ya bilge rat, I didn't get a chance t' attempt a second flight for 2 1/2 months, but t' day o' t' second launch be clear with very little wind. Aye aye! I loaded an A8-3 and this time t' boost was much better. Begad! It didn't exactly spin but had large barrel rolls (much like me original Astron Spaceplane) until ejection and had a decent but nay great glide. Aye aye! A little more up elevon and a little less right turn and this will be a good sport flyer.

Flight Rating: 4 out o' 5

Summary:
This rocket kit was o' t' highest quality with excellent laser cut parts. While nay a beginner's kit, it was easy t' assemble if you take your time and follow t' instruction steps. Begad! Blimey! As be t' case with many boost gliders, thar is trade off betwixt boost performance and glide performance.

I don't expect t' get a better boost without addin' more nose weight but that would affect glide performance. Ya scallywag! Blimey! I will live with t' large rolls as this was intended for sport flying. Begad! Blimey! Ahoy! Blimey!

Overall Rating: 4 out o' 5

Other Reviews
  • Semroc cc: SpacePlane By Geof Givens (April 29, 2007)

    Brief: The Semroc cc:SpacePlane glider is an example of an ingenious marketing plan and business strategy. The rocket design is an out-of-production model from another company. Semroc puts the parts together in a kit including nice laser-cut fins and some other upgrades from the original. Yet Semroc doesn't include assembly instructions...you have to download those from an archiving ...

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