Hawk Mountain Enterprises Transonic

Hawk Mountain Enterprises - Transonic {Kit}

Contributed by Stephen Pellegrino

Construction Rating: starstarstarstarstar_border
Flight Rating: starstarstarstar_borderstar_border
Overall Rating: starstarstarstar_borderstar_border
Hawk Mountain Transonic

Brief:
A high altitude, 38mm minimum diameter, fiberglass, mach capable rocket. Very high quality parts.

Construction:
2 fiberglass 38mm diameter body tubes. One main tube and one payload section. Includes a fin can made of high impact plastic and fiberglass. Approximately 8ft of 3/8" Kevlar® strap, and a Kevlar® reinforced Nomex® heat pad. A Rocketman drogue chute and quick links as well as other hardware. A fiberglass nosecone cast in polyester resin.

The instructions were clear, easy to follow, and included color photos for most of the steps. The assembly order was logically organized. The kit was obviously thought out very well and fin alignment was not an issue as the included fin can was well made and fit the tube with no problem. However, in the instructions it says the you may need to center the fin can with tape. The reason for this is the fin can was made universal, in order to fit a number of tubes, but I found this unnecessary. The fin can is tough as nails. The nosecone is retained by plastic removable rivets.

Hawk Mountain Transonic

Finishing:
Finishing was easy and the tubes take primer very well. All you have to do is sand off the seam marks on the fin can with some 80 grit sandpaper to make it smooth. It kind of chews up the plastic, but all of that is removed after you sand and prime a few times. No decals were included.

Construction Rating: 4 out of 5

Flight:
It preps easily, but you may have a hard time getting the chute into that tube as well as the shock cord. No wadding is required since Nomex® was provided with the kit. I used an Aero Pack 38mm retainer and a 29mm adapter. The retainer is included, but the adapter is not. I flew "Cosmic Wind" for the first time at METRA on Saturday November 5,2005. She flew on a H97J motor as I didn't want to fly it on a "punch" motor right away. When the countdown reached zero, Cosmic Wind soared off the pad slowly but built up speed as it flew. I was surprised that the motor has enough punch to get her off the pad that fast.

Hawk Mountain Transonic

Recovery:
The shock cord is Kevlar® strap that is very durable. The recovery is fast but that is the idea. I also bought a streamer for those really high flights, all I have to do is point the rocket slightly downrange so it doesn't hit anyone--it will fall really fast then. I found no damage on recovery so the Rocketman Drogue did it's job.

Flight Rating: 3 out of 5

Summary:
This rocket is great if you like the ease and toughness of a fin can and the altitude of a minimum diameter rocket.

Overall Rating: 3 out of 5

Other Reviews
  • Hawk Mountain Enterprises Transonic By Darren Wright

    ( Contributed - by Darren Wright) Brief: A 38mm minimum diameter all fiberglass rocket of unparalleled quality. Construction: The rocket airframe is spiral wound solid fiberglass tubing. The kit included the main airframe plus a payload section, with a fiberglass coupler and plywood bulkhead. The nose cone is solid resin, with no casting marks. The fins are the molded Acme 38mm ...

Flights

Comments:

avatar
S.S. (May 1, 2001)
I have flown the Transonic about 6 times now and it is a great rocket. Several things-it takes some dexterity to glue the shock cord to the inside of the airframe- I glued mine farther down the tube than recommended to leave more room for the chute-I used a dowel with sand paper on it to scuff up the inside of the airframe. It is VERY important to get the fin can on squarely-straight, it is easy to do if you take some time. I also came up with positive nose cone retention to the payload section I used plastic gromets-that are removable. The components are top quality and the instructions are excellent-they even include some altitude simulations. I recommend the Transonic highly-along with Hawk Mountain-their service is great.
avatar
P.B. (June 1, 2001)
I have the Raptor & Transsonic 2. I scratch built the Transonic 1 but wanted a longer frame 60" so I used and extra tube and coupler. If you want more 'chute room don"t glue the shockcord to anything. Run the shockcord through air frame, double it over and sew with Kevlar thread. Glue with CA to hold in place while sewing. Shockcord fold is about 1/4". Slid in your Aerotech motor, pull shockcord to motor aft closer folded over tab point to nozzle and screw on an Aeropack retainer. Now you have a nice smooth surface inside your air frame with lots of extra inches for 'chute & whatever. The whole shockcord is now removable for inspection and replacement. It works. 18 flights on same shockcord. Must use flat shockcord. Works on any rocket with an Aeropack retainer.

comment Post a Comment