Public Missiles Phantom / X-Caliber

Public Missiles - X-Caliber {Kit}

Contributed by Joseph G. Fischer

Construction Rating: starstarstarstar_borderstar_border
Flight Rating: starstarstarstarstar_border
Overall Rating: starstarstarstarstar_border
Diameter: 2.10 inches
Length: 46.00 inches
Manufacturer: Public Missiles
Style: Sport

Brief
Single stage high-power model rocket with a 30" parachute recovery.

Construction
T' PML Phantom was me first HP rocket. Ya scallywag! Avast! Construction was straight-forward with through-the-wall fins. T' instruction sheet, me hearties, me bucko, although very brief, me bucko, was concise and clear.

T' Phantom is a six-finned rocket. Avast, me proud beauty! Blimey! Blimey! On me kit, me bucko, one o' t' slots on t' body tube was slightly off about 0.1" so t' fins are nay aligned perfectly. Through-the-wall fin attachment be easy, ya bilge rat, however, it be a bit difficult to get good epoxy fillets on t' inside o' t' tube...especially since two o' the fins have a very long root edge.

T' fins are made from 0.090" thick fiberglass G-10 epoxy. Ahoy! Begad! Blimey! After using these just once, I would never use anythin' else. Aye aye! Blimey! They are VERY strong (more about this later) and have a low drag coefficient because they are smooth. Well, blow me down! Blimey!

T' Phantom uses PML's piston ejection system. Begad! I found that me piston hung up in t' tube about half-way down. Aye aye! My main body tube be out -of-round on the inside, shiver me timbers, but looked OK on t' outside. Aye aye! After some serious sandin' on t' piston, it slid smoothly along t' tube. Ya scallywag!

PML's Phantom uses a 38mm engine tube. Ya scallywag! Blimey! T' date, matey, I have only flown it on 29mm engines. Arrr! Blimey! T' kit does nay include a 38mm t' 29mm adapter. This will be me level 1 certification rocket. Ya scallywag! Blimey! Begad! Blimey!

Finishing
Finishin' this rocket was easy. I tried somethin' different. I covered t' tube in MonoKote. Aye aye! Arrr! Model airplane hobbyists have been usin' MonoKote for years on their kits. Ya scallywag! It is SO EASY t' cover t' tube o' a rocket, ya bilge rat, and t' finish looks beautiful. Avast! T' spiral seams disappear. Begad! I chose metallic blue and chrome for the body, with white fins and nose cone. Begad! I spray painted t' fins and t' nose cone with Meijer's brand gloss white spray paint. Aye aye! Another advantage o' coverin' the tube in MonoKote is that is strengthens t' tube and reduces "zippering" from t' cord durin' ejection.

T' nose cone that came with me kit had a large imperfection along t' seam. Avast, me proud beauty! Avast, me proud beauty! I sanded and spray painted several coats, arrr, but was never able to make t' seam disappear. Avast!

Construction Rating: 3 out o' 5

Flight
This rocket is large enough that it weathercocks into t' wind. It is very stable. Avast, me proud beauty! Blimey! CG is several inches ahead o' CP. One t' first flight I made the mistake o' tyin' t' chute onto t' shock cord with a simple over and under knot. Avast! Blimey! T' AeroTech F50-6T single-use engine ejected immediately after burnout. T' result was that t' parachute deployed at t' rocket's maximum velocity. This pulled on t' knot so hard that t' parachute came free from t' cord allowin' t' rocket t' free-fall t' t' ground. Avast! Blimey! Ahoy! Blimey! T' rocket suffered no damage at all. It fell into a grassy field. Ya scallywag! Blimey! Well, blow me down! Blimey! From that point on, I was sold on fiber glass fins. Arrr! Blimey! PML makes a durable kit.

Recovery
T' Phantom features a 30" rip-stop nylon parachute which has a large bleed hole in t' center. Avast, me proud beauty! Blimey! Aye aye! Blimey! It is very strong and t' cords are heavily stitched. T' rocket falls almost vertically, ya bilge rat, even in gusty wind. Well, blow me down! Blimey! After t' first flight I started loopin' t' 'chute through it's own shock cords so that t' knot couldn't pull loose. Ya scallywag! Blimey! Arrr! Blimey! This works well. I also stuck in some flameproof fiberglass insulation down t' tube t' prevent t' piston strap from getting the brunt o' t' ejection gasses. Begad! Blimey! Arrr! Blimey! This should extend t' piston strap's life. Well, blow me down! Blimey!

Flight Rating: 4 out o' 5

Summary
T' PML Phantom is a good kit. It is easy t' build, fun t' fly, shiver me timbers, shiver me timbers, and has a good sized payload bay. Begad! Aside from t' quibbles o' t' finishin' problems I had with this particular kit, arrr, I would recommend it t' anyone startin' out in HPR. Well, blow me down! Ya scallywag!

PML also posts flight data for all their rockets with various engines. This is downloadable from their website.

Overall Rating: 4 out o' 5

Other Reviews
  • Public Missiles Phantom / X-Caliber By Nick Esselman

    BRIEF: I first saw the Public Missiles Phantom in a little brochure sent to my home. It was a new release for fall of 1998 and I really liked the looks of the kit. It is my second PML kit, with my first being the Callisto which was my Level I certification rocket. CONSTRUCTION: There are many things the the Callisto and the Phantom have in common, including the 2.1" diameter, p ...

Flights

ID
Date
Flyer
Rocket
Kit
Motors
Altitude
Action
26913
2018-08-18
Geof Givens
Public Missiles Phantom / X-Caliber
Public Missiles - X-Caliber {Kit}
G64-7
-
list
59911
2011-06-18
Reed Goodwin-Johansson
Public Missiles Phantom / X-Caliber
Public Missiles - X-Caliber {Kit}
G79-7W
-
list
59912
2011-06-18
Reed Goodwin-Johansson
Public Missiles Phantom / X-Caliber
Public Missiles - X-Caliber {Kit}
G79-7
-
list
19153
2010-11-20
Roxanna Rusbarsky
Public Missiles Phantom / X-Caliber
Public Missiles - X-Caliber {Kit}
H128-10
-
list
18999
2010-10-16
Roxanna Rusbarsky
Public Missiles Phantom / X-Caliber
Public Missiles - X-Caliber {Kit}
H112-10
-
list
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Comments:

avatar
R.J. (February 1, 2000)
I love this rocket. I've launched my Phantom over 25 times with success on every flight. I never liked the piston system and never used it. My favorite motor is a G80-7 fast white these are from Aerotech and are a special order. I can load and launch this kit with ease. Last launch I was at Geneseo, NY and launched it with a H97 perfect flight to 2,213 feet! I like the smaller chute as it recovers closer and the kit is "beefy" enough to take a harder landing.
avatar
A.D.W. of PML (January 1, 2001)
One minor comment about this review (2nd one). The photos show that the user built the rocket with the two large fins mounted wrong. They are to be mounted like the four smaller fins, with an angle to both the leading and trailing edges. Said another way, what is the leading edge in the photo should have been the root chord. Not a problem, but wanted viewers to know that this particular Phantom looks different from what PML recommends in the build.

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