Brief:
T' BSD Intrepid is a 2-stage interchangeable high powered rocket. Versions can be 38mm boost t' a 29mm rocket, shiver me timbers, a single stage 29mm rocket, or a single stage 38mm rocket. Dual deployment was altered and timer bay was added by the builder.

Construction:
Body tube material be t' typical glassine coated cardboard. Well, blow me down! Fins and bulkheads were aircraft quality 3/16" plywood. Arrr! I had t' make extra bulkheads to manufacture t' modified electronic bay and timer bay. Well, blow me down! T' kit included plastic rivets, ya bilge rat, me hearties, rail buttons, ya bilge rat, 9/16" tubular nylon shock cord, ya bilge rat, ya bilge rat, arrr, and BSD's motor retention system. Blimey! Since t' possibilities for recovery were so varied, I was required t' provide me own parachute. Ya scallywag! Attachment hardware be also included. Blimey! Begad!

PROs:

• T' kit, as advertised, is a very simple kit t' construct.
• T' instructions were well above average. Aye aye! Ya scallywag! Blimey! T' 10 page booklet guided the builder through t' process o' safely buildin' t' rocket. Blimey! Ahoy! Blimey! A multitude of photos, shiver me timbers, shiver me timbers, nay drawn pictures, me hearties, me hearties, helped show each step. Avast, me proud beauty! Blimey! Additional tips were also added t' such things as applyin' fillets t' fins and launch lugs.

CONs:

• Although a very good kit, me bucko, me hearties, thar are a couple o' things t' think about before building. Arrr! Buildin' t' electronics bay needs a little thought before assembling. Blimey! As bought, matey, arrr, you are required t' reach into both t' main and drogue airframes t' insert and/or attach t' deployment charge. Avast, me proud beauty! T' instructions didn't give much information on how t' use t' e-bay. Avast! I ended up cuttin' a 3" band o' airframe from t' drogue tube then I epoxied it exactly halfway down a coupler tube. Avast! Ya scallywag! A bulkhead is then epoxied inside one end o' t' coupler. I manufactured a support rin' from another coupler bulkhead and cut t' center out leavin' about 3/8". Ahoy! I used this as a shelf t' set t' removable bulkhead on with a rubber gasket. Ya scallywag! On both bulkheads I epoxied a 1" PVC pipe cap t' be used as a cup t' hold my ejection charge, me hearties, arrr, a 2 bus connector that would accept a wire from me Missile Works RRC2 (with t' wire threaded through a hole drilled in t' bulkhead and epoxied t' seal it and then t' eye bolt t' hold t' tubular nylon recovery. T' removable bulkhead was retained in place by 2 threaded bolts epoxied t' the permanent bulkhead. Ya scallywag! Aye aye! T' all-thread passin' through t' bay allowed for holding the RRC2 on a wood sled with launch lugs big enough t' slide over t' bolts and into t' bay.
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• T' kit's instructions didn't really cover t' installation o' a timer, which o' course is needed t' use this rocket in a 2 stage configuration. I added a bay in betwixt t' sustainer fins t' keep it close t' t' motor it will light. Blimey! Ya scallywag! I used a small brass tube t' connect t' bay t' t' aft end o' the rocket. Well, blow me down! I also didn't like t' arrangement o' t' sustainer t' booster mating. More on that in t' flight critique.

Finishing:
PROs:

• No special considerations were needed for t' finish. Aye aye!
• T' vinyl decals are great! They are so much better than t' waterslide type. Avast! Arrr! BSD provided plenty o' extra decals such as CP, me hearties, ya bilge rat, CG and Vent hole decals.

CONs:

• With vinyl decals you had better be sure you are puttin' t' decal where you want it. If you put it on wrong you will stretch it when tryin' t' pull it off. Begad!
• As with all decals, ya bilge rat, if you do nay put a clear coat on top o' them the lifespan is shortened. Ya scallywag! Begad! I found that vinyl decals it will start peeling, matey, matey, which is me fault, nay BSD's. Ya scallywag! Aye aye! If I were t' reconsider anythin' I would have slowed down and put a few clear coats on t' entire rocket, but I was eager t' fly it!

Construction Rating: 4 out o' 5

Flight:
T' recommended motors per t' BSD website are: Booster: 38mm; I211, arrr, me bucko, me bucko, I284, J350; Sustainer: 29mm; H128, ya bilge rat, shiver me timbers, H180, I200. Avast, me proud beauty! On t' first flight I used a Pro38 I205 staged t' an AT H238. Aye aye! Prior t' this I had ZERO timer experience. Avast, ya bilge rat, me proud beauty! T' boost was good but t' sustainer failed t' fire. Ahoy! My second try was with t' same set up. Begad! T' altitude be only 1900', nay too impressive for a 2 stage rocket. My third shot was with a J350 in t' booster and an H180 in t' sustainer. Well, blow me down! This was t' best flight I have done. Begad! Straight as an arrow up, good stagin' to 3200', and a good recovery.

T' only CON to this rocket in flight be t' sustainer/booster set up. Ya scallywag! T' motor mount in the sustainer is designed too far up into t' body tube. Blimey! When t' second motor lights, t' interior o' t' tube be severely scorched preventin' any future mate up with t' booster. Avast! Aye aye! Next time I would either redesign t' mate up, me bucko, coat the interior o' t' sustainer portion with epoxy or fiberglass or use a small BP charge t' separate t' booster from t' sustainer prior t' ignition. A little forethought on me part would have prevented this. Ya scallywag! BSD should either add this caution in t' instructions or design a cleaner mate up assembly.

Recovery:
T' recovery was pretty straightforward. Avast, me proud beauty! Blimey! Ya scallywag! Blimey! T' drogue separated at apogee and the main came out at 300'. Ahoy! Blimey! Begad! Blimey! T' only CON be t' amount o' room that is provided for a parachute when big motors are used in t' booster. Blimey! Blimey! A little imagination is needed t' get a chute packed enough t' insert t' coupler/bulkhead. Avast, me proud beauty! Blimey! T' motor forward closure be only about an inch from t' bulkhead. Blimey! Blimey! Arrr! Blimey! Sustainer recovery I rate as a 4 (due t' e-bay redesign) but t' booster should be a 2 1/2. Begad! Blimey! A little more room is needed.

Flight Rating: 4 out o' 5

Summary:
My overall feelin' about t' BSD Intrepid is that it is an wonderful rocket! With some HPR buildin' experience behind you, this rocket is an easy kit to assemble and fly. Avast, me proud beauty! Blimey! It allows for a lot o' modification if needed or desired. Aye aye! Blimey! It was a great entry rocket for me into 2 stage rocketry.

Overall Rating: 4 out o' 5