When I saw t' new release o' t' Tiny Pterodactyl I had t' get one...so I did. It arrived 1 week before a planned trip t' Michigan where I was goin' t' be flyin' at 3 Oaks. Avast, me proud beauty! Blimey! Blimey! Blimey! Blimey! Blimey! So I had a short period o' time t' build it. But that was all I needed with t' ease o' this kit.

This was me third PML kit, but only me first usin' Quantum Tube. Ahoy! Blimey! I have been very pleased with me Callisto (Level 1 Cert Rocket) and Phantom so I be expectin' nothin' less. Blimey! In addition all three rockets are based on t' 2.1" airframe and all have t' exact same nose cone.

T' Tiny Pterodactyl be t' hatchlin' compared t' t' large 7.5" Pterodactyl and t' 3.9" Pterodactyl Jr. As stated it has a 2.1" airframe and stands 25.5" tall. Blimey! Blimey! It comes configured with a 29mm motor mount.

T' kit includes a pre-slotted 2.1" diameter Quantum (QT) body tube. Ya scallywag! It uses three (3) 0.062" thick G10 fins with through-the-wall-to-the-motor-mount tabs. Ya scallywag! It has a standard (sturdy) PML 2.1" Nose Cone. A standard PML Piston Recovery system with a Piston, a 3' Piston Strap, ya bilge rat, a 9' Tubular Nylon Shock Cord, and an 18" PML parachute. Well, blow me down! A 29mm motor tube and two 3/16" plywood centerin' rings. Ya scallywag! Well, blow me down! Two (2) 3" Brass Launch Lugs for a 1/4" rod. Begad! Avast! And lastly a single peel-n-stick decal.

CONSTRUCTION:

There are seven (7) 5.5" x 8.5" pages o' instructions with t' kit, matey, matey, plus an insert for t' Dura-Chute (preparation and folding), an insert for Do's and Don'ts o' Quantum Tubing, an insert for t' Piston Recovery system, shiver me timbers, and an insert for tyin' Tubular Nylon. Ya scallywag! T' instructions are thorough and include illustrations t' assist in every aspect o' buildin' t' rocket. Ahoy! T' CP is identified in t' instructions along with instruction for dealin' with CG.

First, PML recommends t' use o' epoxy for t' assembly o' this rocket. Begad! I wanted t' try somethin' different. Begad! I had purchased some ProBond Polyurethane Glue. Begad! Well, blow me down! It is called "T' Ultimate Adhesive", matey, shiver me timbers, "Bonds Virtually Everything", "Super Strong", ya bilge rat, "Sand Easily", ya bilge rat, me bucko, shiver me timbers, "Water Proof", and "Stainable/Paintable". Ahoy! Aye aye! T' outside cover said that it be t' strength o' epoxy without t' mixing. Begad! So I went for it.

In general, shiver me timbers, I found t' glue easy t' work with exception for one primary issue. It expands in volume after bein' applied. (notice in t' picture t' difference from t' wet on left t' fully cured on right) This was nay a problem for attachin' t' centerin' rings t' t' motor tube and t' t' inside o' t' body. Avast! It was fine for attachin' t' strap t' t' motor tube and t' t' piston. Ahoy! Begad! It was fine for mountin' t' fins through-the-wall t' t' motor mount. It did nay appear that it would work well for t' fin fillets so I didn't use it. Avast, me proud beauty! I did fillet t' aft centerin' rin' and piston (see below) and it did okay there. T' main problem is that you just don't know how much it is goin' t' expand on you. Well, blow me down! Once dry it appears porous, arrr, but it does sand easier than epoxy and I had no primer interactions.

Construction is very straight-forward on t' Tiny Pterodactyl. Avast! I did alter t' construction process in a couple o' ways and will touch on those below.

T' instructions initially have you install t' aft (notched) centerin' rin' onto t' motor tube and then t' slide t' piston strap through t' notch t' glue t' t' motor tube in t' next step. Begad! Avast! I reversed this process only because I saw myself havin' trouble slidin' it through t' notch afterward. Avast! I had t' sand t' inside diameter o' both centerin' rings slightly t' get a good fit. Aye aye! T' ProBond Polyurethane glue performed very well here and may be a good alternative (and cheaper) than epoxy.

T' fins fit perfectly both into t' QT and all t' way t' t' motor mount. Aye aye! For internal fillets, I used t' Polyurethane glue by squeezin' it onto t' joint betwixt t' motor tube and fin and then holdin' t' rocket at a downward angle until t' glue had run t' t' end o' t' fin tab, I then set it horizontal t' stop t' running. This worked well, ya bilge rat, too, matey, with one exception. Ya scallywag! Begad! I got a run that found its way out o' t' fin slit and ran across t' fin. Arrr! Avast, me proud beauty! I was able t' clean this off o' t' G10 fin usin' a razor blade.

I used epoxy for make t' fin fillets since t' Polyurethane glue expands.

In buildin' t' piston, me hearties, t' Polyurethane did fine but since it takes much longer t' set than 5-minute epoxy I had t' tape t' little tab on t' strap back t' t' bulkhead. Begad! Ahoy! T' piston also required a lot o' sandin' t' get it t' fit and move smoothly in t' Quantum Tube. Ya scallywag! This is different than me previous experience with PML kits. T' Callisto didn't require any sandin' and t' Phantom only required a little.

Two other changes I made were t' addin' o' blind T-Nuts t' t' aft centerin' rin' before gluin' in place and t' use o' Rail Buttons instead o' Launch Lugs. Arrr! T' latter is a bit concernin' because o' t' piston that slides inside o' t' airframe. Ya scallywag! Begad! T' Rail Buttons had t' be mounted so as nay t' interfere with this piston. I mounted mine at 1/2" and 7 1/4" from t' rear. Avast, me proud beauty! T' one at 7 1/4" leaves plenty o' room for t' piston, ya bilge rat, matey, parachute, ya bilge rat, shiver me timbers, shock cord, arrr, and nose cone without hittin' t' screw that protrudes into t' airframe.

Finishin' be fabulous with QT. Ya scallywag! Blimey! I used 320 grit all over t' entire surface o' t' rocket and fins. Ya scallywag! Aye aye! I used 220 on t' nose cone. Avast! Aye aye! I then primered with Plasti-Kote Sandable Primer. Begad! I used a thick coat on t' nose cone. Aye aye! Begad! I sanded everythin' again with 320. Primed a 2nd time. Avast, me proud beauty! Begad! I sanded and did t' nose cone 2 more times t' fill in a slight mold line. I ended up usin' some left over Rustoleum Hammer-look Gold paint. Arrr! (just like this stuff, me bucko, but really took away from t' smooth finish t' QT would allow). Arrr! Ahoy! I then applied t' decal. Avast, arrr, me proud beauty! I should have then used a clearcoat t' seal t' peel-n-stick decal, arrr, but I was already in Michigan a day before t' launch.

Overall, ya bilge rat, for CONSTRUCTION I would rate this kit 4 ½ points. Well, blow me down! T' parts were o' great quality and t' fit o' t' fins was perfect. Motor retention would be nice and thar be definitely room for it. Begad! T' biggest disappointment was t' amount o' sandin' I had t' do on t' piston.

FLIGHT/RECOVERY:

PML recommends motors rangin' from t' F37 (810 feet) t' an H55 (4432 feet) and everythin' else in t' 29mm range.

T' altitudes above are based on a finished weight o' 18 ounces. Ya scallywag! Surprisingly me finished weight was 17 ¼ ounces. Well, matey, blow me down! This is surprisin' because me finished kits are usually so much off o' t' manufacture's finished weight. Ahoy! Aye aye! Some heavy, ya bilge rat, ya bilge rat, some light, just never this close.

My first flight was on an F40-7 (left), arrr, which PML says should get 1639 feet. Arrr! Well, blow me down! T' F40 I be usin' had failed t' light 7 times with various ignitors, ya bilge rat, so I also used a QuickBurst Slim Gem which I had t' build into t' motor because it was slightly too large t' pass through t' nozzle. Aye aye! It lit. Begad! Avast! It launched. Blimey! I barely got t' picture and it was a great flight despite t' high winds. Ya scallywag! It landed about 50 feet from t' pad. Aye aye! F40's and Econojets will be good launch companions with this one (although I have G25-10 that might find its way into t' Tiny Pterodactyl).

I felt that t' descent was very fast (although it be appreciated with t' wind on that day). Begad! Aye aye! Parachute size calculators suggest that t' parachute should be 30" in diameter. Begad! PML provides an 18" with a 3.5" spill-hole. Ya scallywag! It comes down fast. Ya scallywag! PML does offer a 24" parachute option (for regions with hard landin' surfaces...can you say desert?).

My next flyin' opportunity required a 24mm adaptor so I could fly it usin' me 24mm RMS system. Ahoy! Blimey! I flew it three more times on E28-4's. RockSim says 606 feet with me rocket's weight. Begad! Blimey! Begad! Blimey! Blimey! Blimey! This is great for t' small field.

T' first flight (right) was straight and true. Well, blow me down! Blimey! Ejection was with a "pop" as t' piston "popped" out o' t' tube. Blimey! Blimey! Aye aye! Blimey! Descent was fast and it was recovered without damage.

T' next flight (same day), me bucko, I couldn't get t' piston back in t' where it was nor did it slide easy. I pushed it in and twisted it back and forth and up and down. Begad! When it came out it had black stuff on it. Arrr! I didn't have sand paper with me, so I scrapped t' piston lightly with a hobby knife until all t' black was removed. Begad! Repeated that process again before it slide nicely in t' tube. Well, blow me down! Well, matey, blow me down! Then I launched it.

This time is seemed t' come off t' pad at a slight angle. Begad! It looks like (from a picture) that me ignitor leads went up with it and pulled off just as it was leavin' t' rail. Aye aye! Let this be a reminder t' self and all readin' t' secure those ignitor leads at t' base o' your launch pad. Begad! T' flight be successful, me bucko, just at an unplanned angle.

T' fourth flight (3rd on E28-4) be t' next day in absolutely perfect calmness. Avast! I had t' same trouble with t' piston (right) so I sanded it t' remove all t' black stuff before goin' out t' t' launch field. T' flight was as t' first E28. Blimey! Straight and true with ejection at apogee. Avast! This is a good small field motor and rocket combination. PML should advertise it with 24mm motors E30 SU, ya bilge rat, E28 RMS, matey, F24 RMS and F39 RMS. Begad! I'll be flyin' it on t' 24mm F's too. Arrr! Ya scallywag! I don't expect too much more altitude (200 feet) since t' 24mm RMS F's are only 10 newtons more than t' E's...baby F's so t' speak.

For FLIGHT/RECOVERY, matey, I would rate this kit 4 ½ points. I'm really nay sure why I'm havin' so much trouble with this piston system. Blimey! I have never had trouble after gettin' t' initial fit. I'm wonderin' if t' Quantum Tube attracts more soot than t' PML Phenolic tubing. Aye aye! Avast, ya bilge rat, me proud beauty! Don't get me wrong, ya bilge rat, I LOVE t' piston systems! This one is just takin' a little more work than t' rest. Descent rate is flier's choice, ya bilge rat, but t' 18" with 3.5" spill hole is fast. Avast, me bucko, me proud beauty! RockSim says 19 feet/sec but another calculator says 25 feet/sec. Well, blow me down! Begad! It's fast. T' rocket is tough and can take t' landings though so maybe it's a blessin' in disguise. Avast, matey, me proud beauty! T' remainder o' t' flyin' experience is great. Ya scallywag! Begad! This is a stable rocket and possibly t' only one by PML that can fly on 24mm E motors. Why would PML want that? T' reach some additional fliers. Arrr! Get a couple o' designs under 16 ounces and they will, me hearties, ya bilge rat, no doubt, me hearties, have new customers.

Overall, t' Tiny Pterodactyl is a nice addition t' t' PML and me flight. Avast! Ya scallywag! I'm glad I built it because it had been a long time since I built a PML kit and t' experience Quantum Tubing. Arrr! Arrr! I would recommend this kit t' anyone wantin' t' try a mid-power kit. I would suggest gettin' t' 24" parachute option and also buildin' up a 24mm adaptor. Remember, it doesn't have t' be out-of-sight (literal) t' be an out-of-sight (slang for cool) flier. Quality components and unique looks makes this a nice rocket t' add t' t' fleet. Arrr! Then start thinkin' about t' Pterodactyl Jr. Avast, me proud beauty! Ahoy! or even that ultimate 7.5" Pterodactyl. Well, blow me down! I give t' kit an OVERALL ratin' o' 4 ½ points.