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