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