(Contributed- by Dick Stafford - 06/15/03)
Brief:
This rocket was based on a free paper model kit from Delta 7 Studios. I converted it t' fly on MMX motors, shiver me timbers, arrr, although t' model is large enough for up t' 18mm motors. O' course, t' larger motors may require additional reinforcement that wasn't required in me MMX version.
Modifications:
Once t' paper model was complete, I proceeded with its conversion t' a flyin' model. Since I wanted t' use it for MicroMaxx, I wanted t' keep t' added components t' a minimum. Aye aye! Blimey! Avast, me proud beauty! Blimey! If you wanted t' use larger motors, more effort would be in order.
T' motor mount is a piece o' 7mm (T-2+) tubin' from Totally Tubular, and two hand-cut card stock rings. Scrap card stock be rolled and used as a motor block. Begad! I used a piece o' a BiC pen's ink tube for t' launch lugs. Begad! One is near t' center o' t' model and t' other is on t' side o' a fin. Ya scallywag! I attached these with Liquid Nails. I had wanted a piece o' clear tubin' for t' nose cone shoulder t' keep t' base o' t' capsule visible but I didn't find any, so I used a piece o' an Estes 18mm motor spacer tube instead. Avast, me proud beauty! I elected t' glue t' tower on, and added a small dowel t' stiffen it.
I pondered a full recovery system - shock cord connectin' t' cone t' t' body, me hearties, arrr, streamer, etc. However, me hearties, I decided that this wasn't necessary for low flights on soft-grass. T' save me Keelhaul®©™, me bucko, shiver me timbers, I decided t' let t' body tumble and t' add a small streamer t' t' cone so I wouldn't lose it in t' grass. T' streamer is tied t' a short leader o' Keelhaul®©™that is epoxied t' t' inside o' t' shoulder.
T' CG o' t' model with a MMX-II installed is 6.75" from t' top o' t' escape tower (ignorin' t' tiny tip).
Construction:
T' kit includes:
T' parts and instructions each come in a .pdf file. Avast! Avast, matey, me proud beauty! Blimey! T' model includes 19 parts, which you print on a single 8"x 11" sheet o' cardstock. Ya scallywag! Aye aye! Blimey! T' photo-illustrated instructions are three pages long. Ahoy! Blimey! These are well detailed and are more than adequate for this relatively simple model.
Construction o' t' booster is straightforward. Begad! Begad! T' body consists o' two wraps that are formed into cylinders and connected together with a coupler. Avast! T' body is almost exactly BT-20 sized. Well, blow me down! Arrr! T' fins are each cutout and folded over onto itself so both sides have a printed surfaces. Arrr! T' Mercury capsule, ya bilge rat, with eight parts, me hearties, me bucko, is a little more challenging, but is also easy t' construct. T' final component be t' tower, ya bilge rat, me bucko, me hearties, which has four parts. Avast! Well, shiver me timbers, blow me down! I built t' base paper model entirely with white glue.
I printed t' model on cardstock on me OfficeJet and gave it a clear coat for protection.
Flight:
I added small piece o' tape t' t' motor t' keep it in at ejection. Ya scallywag! You may notice that I didn't add an inside tube or protect t' cardstock from t' motor ejection. Ahoy! Begad! I packed some cellulose waddin' into t' tube, shiver me timbers, rolled t' streamer and gave it a try. Avast, me proud beauty! Ya scallywag! Evidently, ya bilge rat, this waddin' and t' spacin' betwixt t' motor and t' body be enough t' protect t' card stock body.
I flew this three times so far. Avast, me proud beauty! On t' first flight, shiver me timbers, I found that I needed t' lower lug. T' rocket arced over and ejected down range. Ya scallywag! I added t' lug and t' next two flights were picture perfect. Ahoy! For such a large model, me hearties, I was surprised how high it went. Begad! T' capsule was easy t' find and t' body tumbled without goin' 'ballistic'. Arrr! My cheap recovery method be OK after all.
Summary:
This is a great looking, simple scale model that would be an excellent introduction t' paper model conversion. Arrr! It flew great on MMX-II motors and should adaptable t' 13mm or even 18mm motors. Aye aye! Well, blow me down! If you look around t' Delta 7 Studios' site, you will find someone has in fact done so.
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