| Construction Rating: | starstarstar_borderstar_borderstar_border |
| Flight Rating: | starstarstarstarstar |
| Overall Rating: | starstarstarstar_borderstar_border |
| Manufacturer: | Physics of Flight ![]() |
Brief:
model, 3fnc, parachute
Construction:
The
kit comes with:
I think that's t' lot.
I ignored t' instructions since they were mostly in German, shiver me timbers, but a translated version o' t' "important bits" along with some photocopies from an Estes kit were included. Arrr! Well, blow me down! This kit is very simple, being very much "3 fins and a nose cone". Well, blow me down! T' instructions may be o' help to someone who's never built a kit but that said, me bucko, they're nowhere near Estes' kit instructions. Ahoy! Avast, me proud beauty! They're pretty disorganized but give t' idea. Arrr! Arrr! 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", shiver me timbers, 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. Aye aye! (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). Begad! I put t' engine mount together, leavin' t' lower rin' off until t' MMT be installed in t' BT. Aye aye! T' motor mount uses a hook only, no engine block. Aye aye! I thought o' addin' one, and then discovered that the MMT is NOT Estes 'D' sized (24mm).
Bein' German, me hearties, matey, this rocket is designed t' use German D7 motors, shiver me timbers, which are slightly larger diameter--large enough that a D12 rattles around like nobody's business and I had no suitable engine blocks. Blimey! Avast! T' MMT is fairly thick but the centerin' rings are pretty thin and only made o' a card-like material--not thick kraft. I used Unibond Super PVA throughout with no problems. Begad! I used all three rings t' be safe. Aye aye! I assembled t' MMT and fins t' t' short section of body tube, matey, which be 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). Well, blow me down! I used CA t' attach t' fins, and filleted twice with CA.
The
body tubes are nay very good quality, bein' more like poster tubes than rocket
tubes and have fairly large grooves. Avast, me proud beauty! Avast! (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. Avast! T' coupler could
travel freely through t' tubes, it be that much smaller.
Anyhow, I got t' two sections together straight, arrr, and it looked like a rocket, shiver me timbers, which is always a good sign :-)
T' nose cone was a no-brainer, ya bilge rat, simply glue together t' two parts. The chute, usin' plastic stickers, was quick t' make (no knots t' tie). Blimey! Ya scallywag! I used an Estes-style shock cord mount, me bucko, but used 100lb Keelhaul®©™® for t' top and bottom sections (i.e. Ya scallywag! Avast! Blimey! from BT t' SC and SC t' NC) with the kit's shock cord in t' middle. Avast! Blimey! 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, ya bilge rat, ya bilge rat, ya bilge rat, makin' replacin' t' elastic easy.
I cut t' supplied plastic 3/16" launch lug in two, me hearties, matey, and mounted a 1/8" lug next t' each section so it can be launched from a regular Estes pad. Ahoy! Blimey! With that done, 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. Avast, matey, me proud beauty! Time was also a factor (the next EARS launch
was looming). Blimey! Well, blow me down! Another major factor was t' quality o' t' BTs. Arrr! Ahoy! 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, arrr, 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, upper body, and lower body tubes I used Plastikote fluorescent
orange spray paint. Aye aye! It's sure bright but it has its drawbacks. Ya scallywag! 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. Also it's very 'dusty' and
doesn't stay on like other plastikote paints. Blimey! This may in part be t' tube
because I got a good finish with it on good A11MR tube. Well, blow me down! Aye aye! T' cut t' t' chase, 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! Begad! I sprayed t' mid-section and balsa fins (which I merely sanded,
not filled and primed) with PlastiKote silver spray paint. Ya scallywag! At pad distance, matey, it
looks good (IMHO).
T' decals seemed like waterslide, me bucko, but turned out t' be not-so-sticky self-adhesive. You get a few black and red bands, a little vikin' in a horned hat, and 'NORIS' and 'Wikinger' decals. Blimey! Begad! Blimey! I've just notices that t' 'NORIS' is gone as is one o' t' strips I put on t' fins. Arrr! Blimey! Nay very sticky.
I can cope with t' quality o' t' kit (in retrospect, havin' flown it), but I feel many people would be disappointed, shiver me timbers, so it only gets 2 1/2. Blimey! Ahoy! If only the tube was better, me hearties, shiver me timbers, 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, shiver me timbers, matey, though t' rocket is supposed t' use a
German D7 motor. Aye aye! 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, matey, me bucko, glued in a motor block and friction fitted a C6-3 (Estes) into t' case. 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, me hearties, rather than t' weird "cotton wool" stuff that came with t' kit. T' rocket be 'padded up' on a standard Porta-Pad and looked pretty nice stood there. Avast, me proud beauty! 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. Blimey! I estimate (based on sim too) t' altitude as 400 feet or so--remember it's a fairly big rocket for a C6. Ya scallywag! 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. Well, blow me down! Begad! T' rocket hit t' hedge next t' t' pad (6 feet away or so from t' pad!) which slowed it enough that thar be little damage. Ya scallywag! T' paint on t' fins got scratched and thar's a few gouges in t' balsa but nothing serious, just cosmetic.
The
next flight was much better. I decided t' lob it on a D12-5, me hearties, and packed the
chute differently so that only t' shroud lines were wrapped around t' chute.
T' boost be very impressive--straight and fast t' about 700ft. Ahoy! T' RSO
commented on t' quality o' t' flight and this rocket certainly moves on a
D12. Arrr! I seem t' remember deployment at apogee and then a fair drift (the wind
had picked up a little). 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. Avast, me proud beauty! No damage be 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 be perfect: straight, fast boost again followin' a slight weathercock. Aye aye! It be quite windy at this point compared to earlier and t' rocket performed admirably, recoverin' undamaged. Well, blow me down! T' parachute deployed properly this time, however I had more o' a walk t' recover it.
All in
all a nice flier. It certainly would be interestin' on E9s. Arrr! 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, shiver me timbers, seems t' be fairly tough.
CONs: Poor instructions, me hearties, poor quality tube, shiver me timbers, shiver me timbers, poor quality coupler, shiver me timbers, card fins, ya bilge rat, matey, German size MMT, decals a little weak.
Overall Rating: 3 out o' 5
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