T' success o' the MkV made me start t' think a bout t' bigger tubes I had stacked in t' corner. If I could cluster four engines, shiver me timbers, arrr, why nay six? Why nay use D engines? I had a tube that would hold seven 24mm mounts, matey, but it wasn't really long enough. Blimey! Blimey! Arrr! Blimey! So I decided t' built a rocket reminiscent o' t' MkIV, with a transition, and forward fins. Arrr! Blimey! With t' extra weight o' t' engines, t' plywood fins and centerin' rings, this design turned out nay t' be stable ( Usin' RockSim). I increased t' length o' t' upper tube ( forward o' t' transition) and removed the forward fins. Aye aye! Blimey! That was a lot better.

I had heard o' some larger black powder engines available in t' UK form a company called Rocket Services and wanted t' option o' installin' them. Well, blow me down! So I went for a removable cartridge system. Arrr! T' Fins were mounted through t' body wall and formed runners onto which t' engine cartridge would slide. Begad! T' cartridge be made up from two discs o' plywood drilled with holes for t' engine mounts. Blimey! Aye aye! T' cartridge slid in t' t' body on t' runners and be then locked into position by rotatin' the whole thing. In t' end I just went with six engines. Avast! Thrust rings were made from sawn up spent D engines and epoxied in t' place. Avast, me proud beauty! Avast, me proud beauty! A stuffer tube was placed inside t' main body, me hearties, ya bilge rat, shiver me timbers, mounted on two centerin' rings. At ignition t' upper body was t' separate, each half with its own parachute. Blimey! Karen made a red and white hemispherical 'chute for t' lower half, and I was goin' t' use t' pink circular 'chute for t' upper half. Well, blow me down! We intended t' fly it at t' International Rocket Weekend, me bucko, and I had a lot o' help from Brain who made and painted the transition just days before we went. Well, blow me down!

At t' event, a lot o' doubt was raised about t' engine cartridge system. Ya scallywag! 'Six D ejection charges will blow it out' they said. Ya scallywag! I also couldn't determine how I be goin' t' ensure that both parachutes deployed. Aye aye! Blimey! Blimey! In t' end I bought some big shock cord and tied both halves together on t' red & white 'chute. Another hitch, I had planned to add another set o' clips t' me ignition system, matey, but had forgotten ( that last week was hectic as I me work had taken me away from home for several days), and I didn't have a large enough launch pad... Arrr! Blimey!

Luckily I learned o' a new technique for clustering. Avast, me proud beauty! This involves usin' a single igniter t' ignite 'quick match' fuses that are fed into t' individual engines. Avast! One o' t' organizers, John Bonsor, showed me how t' do this. Avast, me proud beauty! I managed t' borrow a launcher and after a wait for t' wind t' die down, we were ready. Aye aye! T' ignition and initial flight were perfect, me bucko, except, what was that? A small object appeared t' fly from the back at ejection, and where be t' 'chute. Ahoy! T' rocket came in ballistically. What had happened be exactly what t' 'doom sayers' were predicting. Well, blow me down! Blimey! Even though I had staggered t' ejection by usin' a mixture o' D12 delays, matey, the ejection gases pushed t' engine cartridge out o' t' rear, ya bilge rat, instead of deployin' t' chute. Begad! T' rocket was a write off. Begad! T' engine cartridge shattered, t' forward tube like a concertina, and t' aft tube a slowly unwindin' spiral.

T' pic o' lift off was t' last shout from me last roll o' film, so mercifully thar are no pictures o' t' rocket as we found it. Ahoy! T' realization of t' hours we had all spent on this rocket, shiver me timbers, shiver me timbers, shiver me timbers, which was now trash, didn't sink in until later, and it be a long drive home from Largs t' Leeds.