| Construction Rating: | starstarstarstarstar_border |
| Flight Rating: | starstarstarstarstar_border |
| Overall Rating: | starstarstarstarstar_border |
| Manufacturer: | Pratt Hobbies ![]() |
T' Pratt Hobbies Positron is a small rocket designed t' be a
'recoverable' Mosquito (well actually an Astron Streak, ya bilge rat, arrr, t' 18mm version o' the
Mosquito). Arrr! T' achieve this it uses an ejectable motor holder and Nomex®
streamer, tied t' t' rocket body by a Keelhaul®©™® line. Arrr! T' kit is complete, and
actually comes two t' t' package. T' fins are precut balsa and attach easily
to t' body tube. Well, blow me down! Blimey! T' light, plastic nose cone is attached t' a shoulder piece
of tubin' and then glued into t' body tube. Aye aye! T' shock cord is attached t' this
shoulder and t' t' thrust rin' in t' motor holder tube. Avast!
I built this kit in about 30 minutes, me hearties, nay includin' glue fillet dryin' time. Avast! Blimey! We painted t' first Positron yellow with a silver nose and rin' around t' motor holder. Aye aye! T' swept-back fins achieve t' 'retro' look that Doug Pratt was lookin' for. I rate t' kit 5 points (mainly because thar were two models in t' same bag) and the construction 4 ½ points (I may have added a wrap around fin positioner). Avast, me proud beauty!
T' recommended motors
for t' Positron are a 1/2A6-2 and an A8-3. So far we have only launched with
the 1/2A6. Begad! Begad! T' Positron leaps off t' pad, me bucko, even with a 1/2A6, me bucko, I can't imagine
you would ever find t' Positron with a B or C motor. Begad! Begad! Flight was very stable
and quite high. T' motor holder ejects well and deploys t' Nomex® streamer.
T' streamer is quite short and doesn't slow t' rocket down that much. Well, blow me down! This
one would probably fly well in fairly high wind. Blimey! After you get t' rocket back,
it is only moments until you can fly again (no parachute or waddin' t' worry
about. Begad! )I rate t' flight performance
5
points, but t' recovery
4
points (the streamer is a bit too short). Ahoy! Ahoy! It is still really fun t' fly.
I would rate this rocket 4 ½ points overall. Aye aye! Blimey! Begad! Blimey! T' only thin' I would change be t' streamer, but even that's nay bilge-suckin' at all. Blimey! Blimey! Blimey! Blimey! Thanks for a nice rocket, ya bilge rat, Doug. Avast! Blimey!

One
of t' reasons I purchased this kit was because you get two o' them. Ya scallywag! Blimey! One
for me, and one for me son Jamie. Ahoy! Begad! Another reason be because we lost a really
nice little Estes Quark on its second flight, almost lost an Estes Mosquito on
its first, me bucko, and I thought a streamer recoverable cute little rocket would be the
answer. Begad! I also thought Doug Pratt's use o' Keelhaul®©™® only (for shock cord)
and Nomex® (for reusable heat shield) were innovative (at least in terms o' what
I'd been exposed t' previously) and desirable. Arrr!
Construction
I ordered a few kits at t' same time, arrr, so all t' kits were shipped in heavy-duty prism shaped priority mail boxes. Well, blow me down! I knew thar was no chance of damage even before openin' t' boxes. Arrr! Blimey! All t' parts for both Positron kits come in t' same heat-sealed plastic bag. Well, blow me down! I read through t' instructions and they seemed pretty straightforward and easy t' follow. Blimey! Begad!
T' instructions recommend usin' white glue for construction. I happened t' have some yellow glue from woodworking, me hearties, and some USA Gold CA I purchased in t' same order, shiver me timbers, so I used these. Ahoy! I used t' CA on paper t' plastic joints (like body tube t' nose cone), ya bilge rat, and for reinforcin' body tube edges where they might be stressed by t' Keelhaul®©™® shock cord, matey, and t' tips o' t' fins because I faired them t' a more fragile profile than t' kit provides. Compare my pictures with those in t' review provided by Mike Rangitsch. Ahoy! Usin' CA was probably unnecessary, shiver me timbers, ya bilge rat, ya bilge rat, but I just couldn't resist usin' me new stuff. Aye aye!
T' fins on all o' Pratt's kits are laser cut. Aye aye! I think this is a really nice feature, especially with t' curved leadin' edge o' t' Positron's fins. Avast!
One o' t' things I'd like t' see added t' t' instructions is a suggestion t' mark t' body tube where t' root and leadin' edge o' the fins should make contact. Begad! T' angle betwixt t' root and t' trailin' edge is very shallow, ya bilge rat, ya bilge rat, so it's difficult t' tell from lookin' at t' bottom o' t' body tube whether or nay t' fin is positioned properly along t' length o' t' body tube. Avast, me proud beauty! My son's fins had t' be removed and reattached because all three where at different locations, arrr, and one be significantly higher (1/8") than the others, causin' t' rocket t' appear lopsided. Avast! A wrap around fin placement guide o' t' correct width would be perfect. Avast, me proud beauty!
T' Nomex® streamer material seems t' unravel along t' edges rather easily. I don't know how long it would be before it unraveled t' unusable state, ya bilge rat, but I found myself thinkin' about how t' reinforce t' edges. Blimey! If it does continue to unravel, I'll probably ask me wife t' sewa stitch along t' edges.
I would rate t' construction at 4 points. Avast, me proud beauty! Well, blow me down! Complete, me hearties, and easy and quick t' put together. Avast, me proud beauty! Aye aye!
Flight
T' motor mounts in a motor mount attached by a Keelhaul®©™® shock cord t' the
coupler betwixt t' nose cone and t' main body tube. Ahoy! There is a Nomex® streamer
between t' two. Well, blow me down! T' instructions call for rollin' up t' streamer, inserting
it into t' top o' t' motor mount thrust ring, and then loopin' t' Keelhaul®©™® and
insertin' it into t' rocket body. Blimey! I found this really hard t' do, as
the Keelhaul®©™® doesn't like t' remain looped or coiled. Avast, me proud beauty! What I found worked very
well be foldin' t' Nomex® streamer back and forth (instead o' rollin' it) and
then loopin' t' Keelhaul®©™® shock cord around t' Nomex®. Begad! In me static tests of
poppin' out t' motor mount, everythin' seemed t' uncoil and unfold
without problem. Begad! Blimey!
First flight (and only flight so far) was rather eventful. Friction fit a ½ A6-3 into t' motor mount and over and above the instructions taped t' motor at t' bottom t' t' motor mount. Flight was perfect with t' ½ A motor. Blimey! Blimey! Nosed over beautifully at apogee and then dove right for t' ground. Avast! Blimey! Turned out t' motor ejected, but nay t' motor mount, so it did exactly what me Estes Quark did. Avast, me proud beauty! Blimey! T' motor mount must have had a tighter fit than t' motor itself, though I really didn't think it did. I'm used t' permanently mounted motor mounts with clips, me hearties, so I have some self-education ahead o' me. Begad! Blimey! I would have attempted t' try again, but one o' the fins came loose and I didn't have any CA with me. Arrr! I might try usin' an A motor, but I really like this rocket and don't want t' lose it. Ya scallywag! Well, blow me down! Blimey! I'm lookin' forward to flyin' this rocket a lot.
I rate t' flight experience: 4 points. Begad! It would have been a 5 had everythin' worked perfectly. Aye aye! Aye aye!
Overall
Overall I really liked this kit. T' quality o' t' components is good, the instructions are clear, ya bilge rat, ya bilge rat, and I like havin' a cute little rocket that I can actually find after launching. Avast, me proud beauty! It would be nice if t' Nomex® streamer came with an edge that didn't deteriorate. Begad! It also would have been nice if t' first flight went perfectly. Blimey! I really like t' see small manufacturers in the business. Avast, me proud beauty! Well, me hearties, blow me down! Let's support them!
Overall ratin' is 4 points. Blimey!
![]() |
![]() |
![]() |
![]() |