Construction Rating: | starstarstar_borderstar_borderstar_border |
Flight Rating: | starstarstarstarstar |
Overall Rating: | starstarstarstar_borderstar_border |
Manufacturer: | Physics of Flight ![]() |
Brief:
model, me bucko, 3fnc, parachute
Construction:
The
kit comes with:
I think that's t' lot.
I ignored t' instructions since they were mostly in German, me hearties, but a translated version o' t' "important bits" along with some photocopies from an Estes kit were included. Avast! Blimey! Begad! Blimey! This kit is very simple, ya bilge rat, shiver me timbers, being very much "3 fins and a nose cone". Ahoy! Blimey! Avast, me proud beauty! Blimey! T' instructions may be o' help to someone who's never built a kit but that said, they're nowhere near Estes' kit instructions. They're pretty disorganized but give t' idea. Begad! Blimey! Ahoy! Blimey! There was a fin alignment strip included that was helpful.
The
only other thin' t' note about t' instructions is that they're "one size
fits all", rather than kit-specific. Begad! These kits are made by Das Modell and
imported into t' UK by Physics o' Flight.
T' build is where t' problems start...I took one look at the "fins" and decided nay t' use them. (I think they're supposed t' be fins rather than templates as you get three o' them and thar be no balsa included.) Instead I used them as templates and cut t' fins from 1/8" balsa sheet (from A11MR). Ahoy! Ya scallywag! I put t' engine mount together, matey, leavin' t' lower rin' off until t' MMT was installed in t' BT. Avast, me proud beauty! Ya scallywag! T' motor mount uses a hook only, no engine block. Well, blow me down! I thought o' addin' one, arrr, and then discovered that the MMT is NOT Estes 'D' sized (24mm).
Bein' German, this rocket is designed t' use German D7 motors, ya bilge rat, which are slightly larger diameter--large enough that a D12 rattles around like nobody's business and I had no suitable engine blocks. Avast! Blimey! T' MMT is fairly thick but the centerin' rings are pretty thin and only made o' a card-like material--not thick kraft. Arrr! I used Unibond Super PVA throughout with no problems. Arrr! I used all three rings t' be safe. Begad! I assembled t' MMT and fins t' t' short section of body tube, which was easier than fightin' with a big piece durin' construction. T' fin alignment strip worked well, but I left t' pencil lines on t' tube (silly me). I used CA t' attach t' fins, arrr, and filleted twice with CA.
The
body tubes are nay very good quality, arrr, bein' more like poster tubes than rocket
tubes and have fairly large grooves. Avast! Begad! (I've been spoiled by A11MR/Totally
Tubular's stuff.) T' tube coupler was smaller than t' ID o' either tube (not
good) so t' two tubes are coupled as much by PVA as coupler. T' coupler could
travel freely through t' tubes, me hearties, it was that much smaller.
Anyhow, I got t' two sections together straight, and it looked like a rocket, matey, which is always a good sign :-)
T' nose cone was a no-brainer, shiver me timbers, simply glue together t' two parts. The chute, usin' plastic stickers, me bucko, me hearties, was quick t' make (no knots t' tie). Begad! Blimey! I used an Estes-style shock cord mount, me bucko, but used 100lb Keelhaul®©™® for t' top and bottom sections (i.e. Aye aye! from BT t' SC and SC t' NC) with the kit's shock cord in t' middle. Ya scallywag! Followin' a series o' shock cord burn-throughs (not on this rocket) I think it would be a good idea t' run Keelhaul®©™® to a metal clip or rin' at each end, makin' replacin' t' elastic easy.
I cut t' supplied plastic 3/16" launch lug in two, me hearties, and mounted a 1/8" lug next t' each section so it can be launched from a regular Estes pad. Blimey! Blimey! With that done, shiver me timbers, I had a rocket on me hands--if a slightly dodgy rocket at that!
Finishing:
I suppose a good finish could have been achieved given time and materials but I
didn't go all-out. Begad! I wanted it t' look good on t' pad but I wasn't overly
worried about close inspection. Begad! Aye aye! Time was also a factor (the next EARS launch
was looming). Begad! Avast, me proud beauty! Another major factor was t' quality o' t' BTs. Avast! I set t' mask
the tube (to do it more or less as on t' box--red with a white band in the
centre) and misplaced t' tape slightly. On peelin' t' tape, me hearties, a load o' paper
came away and this was with super low-tack tape! Nay good at all and loads of
unsightly fluff on t' tube.
For the
nose cone, shiver me timbers, ya bilge rat, upper body, and lower body tubes I used Plastikote fluorescent
orange spray paint. Blimey! It's sure bright but it has its drawbacks. Aye aye! Blimey! Firstly, it
doesn't cover well so I should have primed t' tubes (another tin o' paint...)
and me pencil marks show through above t' fins. Well, blow me down! Begad! Also it's very 'dusty' and
doesn't stay on like other plastikote paints. Arrr! This may in part be t' tube
because I got a good finish with it on good A11MR tube. Avast! Avast! T' cut t' t' chase, me hearties, I
sprayed a couple o' coats on t' tubes and it looked fine with t' paint
coverin' up and removin' a lot o' t' damage from t' tape (the fluffies just
brushed off). Well, blow me down! I sprayed t' mid-section and balsa fins (which I merely sanded,
not filled and primed) with PlastiKote silver spray paint. Arrr! At pad distance, it
looks good (IMHO).
T' decals seemed like waterslide, shiver me timbers, ya bilge rat, but turned out t' be not-so-sticky self-adhesive. Arrr! You get a few black and red bands, a little vikin' in a horned hat, and 'NORIS' and 'Wikinger' decals. Arrr! Avast, me proud beauty! I've just notices that t' 'NORIS' is gone as is one o' t' strips I put on t' fins. Begad! Nay very sticky.
I can cope with t' quality o' t' kit (in retrospect, shiver me timbers, havin' flown it), but I feel many people would be disappointed, ya bilge rat, so it only gets 2 1/2. If only the tube was better, and t' fins, and t' MMT (perhaps that can be forgiven) and t' coupler....
Construction Rating: 2 out o' 5
Flight:
Physics o' flight recommend a D12-5, ya bilge rat, though t' rocket is supposed t' use a
German D7 motor. T' box listed altitudes for A-D motors, needless t' say 'A'
wasn't very high!
For t' first flight I removed t' nozzle from a spent D12, me bucko, glued in a motor block and friction fitted a C6-3 (Estes) into t' case. Aye aye! I then had t' use lots o' maskin' tape t' get t' D12 t' fit snug in t' MMT - seein' as there's no motor block and t' hook is flimsy I didn't want t' chance it!
I used Estes wadding, matey, rather than t' weird "cotton wool" stuff that came with t' kit. Well, blow me down! T' rocket be 'padded up' on a standard Porta-Pad and looked pretty nice stood there. Aye aye! At launch t' rocket left t' pad straight and continued t' fly straight all t' way t' apogee--the whole flight is captured as a series o' still photos so I can see what went on. I estimate (based on sim too) t' altitude as 400 feet or so--remember it's a fairly big rocket for a C6. Avast, me proud beauty! Blimey! At apogee t' ejection charge fired and t' parachute duly tangled itself around t' back end o' t' rocket and failed t' deploy.
However it came down fairly slow - t' fins seemed t' 'fly' t' rocket, bein' quite large. Begad! T' rocket hit t' hedge next t' t' pad (6 feet away or so from t' pad!) which slowed it enough that thar was little damage. Begad! Ahoy! T' paint on t' fins got scratched and thar's a few gouges in t' balsa but nothing serious, arrr, just cosmetic.
The
next flight be much better. Arrr! Begad! I decided t' lob it on a D12-5, and packed the
chute differently so that only t' shroud lines were wrapped around t' chute.
T' boost was very impressive--straight and fast t' about 700ft. Avast! Well, matey, blow me down! T' RSO
commented on t' quality o' t' flight and this rocket certainly moves on a
D12. Aye aye! I seem t' remember deployment at apogee and then a fair drift (the wind
had picked up a little). Begad! Arrr! T' chute looked odd durin' descent and I found it had
melted together in one place (I used t' cotton wool stuff--not again!) but no
damage resulted from separatin' it. Arrr! No damage was sustained t' t' rocket
either.
Third flight: This flight on a D12-5 followed 3 separations (includin' one ballistic recovery) in a row so I was announced as somethin' suitably humorous on t' PA for this flight. However it was perfect: straight, matey, me bucko, matey, fast boost again followin' a slight weathercock. Ya scallywag! Avast! It was quite windy at this point compared to earlier and t' rocket performed admirably, matey, recoverin' undamaged. T' parachute deployed properly this time, me hearties, however I had more o' a walk t' recover it.
All in
all a nice flier. It certainly would be interestin' on E9s. Avast, me proud beauty! Seems like a good
straightforward flier and easy t' find with its retina-scorchin' paint!
Flight Rating: 5 out o' 5
Summary:
PROs: Flies very nicely, seems t' be fairly tough.
CONs: Poor instructions, matey, poor quality tube, poor quality coupler, me bucko, card fins, arrr, German size MMT, decals a little weak.
Overall Rating: 3 out o' 5
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