When I got back into rocketry after a couple years off, I saw Internet sites describin' rocket cameras. Ahoy! I already had t' Astrocam, but I wanted more. Specifically, arrr, I wanted as many pictures I could get per flight. Aye aye! And so t' quest began...
Amazingly, me bucko, me brother had an Opus 35 camera. Begad! Many people had modified this for airborne use, me hearties, shiver me timbers, so I tried that. Ahoy! It almost worked, shiver me timbers, but I think I broke t' camera. Begad! In fact, I broke two other cameras in t' process. Aye aye! Whoops. Avast, me bucko, me proud beauty! It be then I came across t' RC Aerial Photography Site. Arrr! This guy had used a Digital camera t' take pictures from an RC glider. Arrr! Ya scallywag! And, ya bilge rat, he claimed it could be used in rocketry. Cool, matey, I thought. Well, blow me down! So I began t' research t' DC 20 digital camera for rocketry use. Well, blow me down! A normal 35mm camera could take 36 shots, ya bilge rat, but this could only take 8. Avast, me proud beauty! Ya scallywag! Oh well, it's better than one picture per flight. So I got a DC 20 for me birthday. Ya scallywag! Ahoy! I just got t' rocket controller, shiver me timbers, shiver me timbers, but that was no problem t' assemble. Arrr! I added a phono jack with a nail in it t' use as a switch.
T' camera mount is simply a board o' 3/16 inch aircraft plywood and 2 centerin' rings made out o' t' same substance. Begad! One centerin' rin' has two holes in where a wire is looped. Aye aye! This makes it easier t' pull t' mount out o' t' BT.
Here be t' top view:
Here be t' side view:
With electronics installed
I used VCP t' come up with t' necessary stability calculations. Ahoy! Eventually I'll post t' forward fin size, matey, etc. Begad! Ahoy! Blimey! (T' model uses forward fins t' make sure it will nay be overly stable. I later found these are nay needed and broke them off) But for now, I'll just describe t' payload section. T' body tube is a full length o' Estes BT-80 (2.6" diameter) with two strips o' folder material glued t' t' top and bottom o' t' BT t' add thickness t' t' Estes/Aerotech BT joint. Blimey! Blimey! It is covered with clear tape (masking?) for a smother transition. Ahoy! Avast, matey, me proud beauty! Blimey! It has a 4" tube coupler made out o' corrugated cardboard with one layer o' paper peeled off. Ya scallywag! T' lower bulkhead is 3/8" plywood with two holes for t' wire for shock cord/parachute attachment. Blimey! Arrr! Blimey! Above this bulkhead is about 2" o' paddin' t' absorb some o' t' lift-off stress. Well, blow me down! T' camera mount sits on top o' this and points t' camera out o' a small slit in t' side o' t' BT. Well, blow me down! Ahoy! Blimey! Again, me hearties, ya bilge rat, t' tube is reinforced with folder material for strength. Begad! Blimey! Finally t' Aerotech Initiator nose cone gets put on top. Begad! T' whole payload section was painted gold. Avast, me proud beauty! Blimey! It is now painted red t' match t' cone.
T' original design:
After I snapped off t' fins:
T' first launch be on a F25 29mm Aerotech single use engine. It supposedly broke 500'.
My newest booster is goin' t' be light enough t' loft t' camera on a D or E engine.
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