The Public Missiles, Ltd. Phobos is one of the great, easy to build mid and high power rockets out there you can buy. This rocket can be launched on any where from a F40 all the way up to a J570 if you get it with the 38mm motor mount. This is probably the best rocket to use for your Level 1 cert attempt, which I used it for. The only down side to this kit is you have to clean out the main airframe after every two flights due to the ejection charge.
The Phobos kit contains all the parts necessary to build a flying mid/high power rocket:
The construction of this rocket went together like any other high power rocket. The only problem I ran into was trying to get the strap for the piston ejection system through the notched centering ring.
The finish was super easy. Just sand it and paint it.
Construction Rating: 5 out of 5
First flight was on a F40-4W. It was a perfect flight to about 300 feet except the motor casing kicked. (I did find the motor.)
Second flight was successful on a H165R-M for my NAR Level 1 certification.
Third flight was with a G64-7W. Yet another perfect flight and perfect recovery except it hit a person's truck and broke a fin off.
The fourth flight was a H180W-M. WOW! Out of sight! I almost lost it but I was able to regain sight of it as it came back down on with a tangled parachute. It landed hard but with no damage.
The recoveries are good but a little too fast for my liking. The only thing I would change about the recovery is up grade to a 48 inch parachute instead of a 36 inch parachute.
Flight Rating: 4 out of 5
The main PROs of this kit are:
The cons are:
Overall Rating: 4 out of 5
Brief: The PML Phobos is an easy to build single stage, single motor 3FNC MPR/HPR kit. It could be used for Level 1 certifications but I don't know if I would recommend it for that. You have a choice of either Quantum or phenolic tubing and 29mm or 38mm motor mount. I bought the kit direct from PML with the Quantum tubing (QT) and 38mm motor mount. My goal in picking the Phobos was that it ...
( Contributed - by Brian Kain - 10/15/00) Brief: I shortened the span of the fins to 2.25". Used 1/4" graphite tubing for launch lugs. Modifications: I took the three (3) fins and put them in my flat jaw vice, making sure to keep them all straight and lined up. Then with my dremel tool and a carbon cutting wheel, I cut all 3 fins at once. Then kept them in the vice ...
Picture courtesy of Public Missiles Brief: The PML Phobos is a 2.15" HPR with payload section. I selected it because PML website indicated that is was capable of flying with a J350. This would allow me to use it for both for a TRA Level 1 certification as well as Level 2. Construction: The PML Phobos is a 2.15", 57 long HPR with payload section using the PML ...