|Construction Rating: |
|Flight Rating: |
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Contributed by Todd Mullin
Many of us have longed for the re-release of the quintessential rocket from the Golden Age of Estes, the Interceptor.
In late 2007, Estes not only re-released that classic kit, but gave it to us upscaled for midpower! The Interceptor-E
is a 24mm, 1.5x upscale of the original Interceptor with some new additions. I had just finished building my
re-released, original sized Interceptor when I ordered the Interceptor-E kit. I knew it was going to be bigger, but was
pleasantly surprised at how much bigger it was!
The Interceptor-E comes packaged in the traditional Estes hanging bag with the front card actually forming a half box
to protect the parts. All of the kit's parts were present and in good condition, with one exception which will be
discussed later as it was not readily obvious when I inspected the parts. Included with the kit are:
- Plastic nose cone
- HBT-2000 Body tube
- HBT-2000 Slotted body tube
- HJT-1935 Tube coupler
- HBT-1000 Engine mount tube
- Engine block ring
- (2) Plastic centering rings
- 3/8" x 30" Elastic shock cord
- (2) Molded plastic conformal launch lugs
- 24" Nylon parachute
- (4) Laser cut balsa sheets
- (2) Molded plastic antennas and two-piece wing pods
- Molded plastic tail cone
- (3) Large decal sheets
- Paper shock cord mount.
There are 12 pages of well written and illustrated instructions for the Interceptor-E. There are however a couple of
gotchas. Most of these were due to my not paying enough attention to what the instructions actually were telling me.
The construction starts out with the engine mount. The large plastic centering rings require epoxy to be bonded to
the motor tube. After the rings, motor block and engine hook are installed, the body tube is marked with the normal
Estes body tube wrap with a twist. The builder has to align two marks on the wrap with the pre-cut fin slots.
Next, is one of the gotchas that nearly did in my body tubes. The instructions show the tube coupler inserted into
the read tube after a ring of glue is shown being applied to the inside of the tube. There is also a ghosted out tube
with an arrow pointing to the couple. Whereas, if I had stopped to actually READ the instructions instead of just
looking at the pretty pictures, I would have know that the front tube does NOT get glued on at this time as it seems to
appear in the illustration! The motor tube front centering ring sits on the front of the coupler tube, so the front
tube cannot be added until the centering ring is on! Luckily I realized my error before the yellow glue I had used to
join the two sections had permanently set.
After the motor mount is glue in place with epoxy, the front tube is put in place. The instructions say to next
put the tailcone on, but as with my standard sized Interceptor, I left this until last so that it could be painted
Next are the fins. The large fins and wings are all multiple pieces that must be joined flat. In addition to this
construction, extra "wing supports" have been added to the wings and "fin supports" to the top
fins. Personally, I thought these looked clunky and out of place so I left them off.
Only the belly fins are surface mounted on the Interceptor-E.
The wings and top fins are slot mounted which makes alignment much easier. Estes recommends using epoxy on the fins
throughout the construction. The wing tanks and antennas are added on to the ends of the wings and top fins. After the
plastic bits had been added, I applied epoxy fillets to all the fin joints.
HUGE GOTCHA WARNING! The instructions next tell you to glue the launch lugs at 3" and 17" from the rear
of the model. If they are, they will interfere with the layout of the decals! Turn to page 10 of the instructions and
look at the bottom view of the model before gluing the lugs on. I did not notice this and put them where the directions
said to and had to jockey the decals around the lugs. I was really not pleased about this! I finished the model next
and then attached the recovery system to complete construction.
As the Interceptor-E was waiting in my building queue, I happened upon a notice online that Excelsior Rocketry was
releasing a set of British replacement decals for the standard sized Interceptor. After inquiring whether there would
be E-model sized versions release, I was told that I could beta test a partial replacement set for the larger model.
Most of the USAF decals would be replaced with Royal Space Navy decals including Union Jack styled replacements for the
After looking at WWII RAF planes, I decided to paint my Interceptor-E model silver with British trainer yellow
wing pods and belly fins to complement the replacement decals.
After filling the balsa with Elmer's Fil 'N Finish®,
I sprayed it with a heavy coat of Kilz spray primer and lots of sanding ensued. I painted the wing pods and belly fins
next. After the paint had cured for a day, I masked them off and painted the model silver. Lastly, I painted the tail
cone gloss black before finally gluing it in place. Painting the wing pods before the rest of the rocket made it MUCH
easier to mask. I did my standard Interceptor in the other order and it was a huge pain to mask the curve on the wing
where the pod joins on.
After the paint had cured overnight, I got to the part that I
had been looking forward to since I had started the build, putting on the myriad of decals that make this model pop! I
had heard many complaints about the decals for the standard sized Interceptor, but I had had no problems with the
decals for it, so I expected the same for the E-model. Boy, was I in for a surprise.
When I pulled the decals sheets out their protective bag, I noticed that the black on one of the sheets was
somewhat smeared. Not terrible, so I continued. After a LOT of trimming, I had separated out the decals from both the
original set and the replacements that would be needed.
The Estes decals were everything that had I had hoped they wouldn't be. On the carrier sheet, they looked good
with many clever little details, but that is the only good thing about them. While I didn't manage to actually tear any
of them, they had a proclivity to curling after the backing paper was removed. Also, once off the backing and on the
model, they were DOWN and were extremely difficult to shift, even to just straighten wrinkles out. The black decals
again became an issue as the black seemed to crumble off at the slightest application of pressure.
The Excelsior decals by comparison were a joy to work with. They came off the backing paper cleanly and moved
easily on the model into position without folding or curling. The only minor problem I had with these was a slight beta
test sizing error (somebody's gotta try out the first ones, right?) that has been now corrected.
After the decals had set overnight, I applied a coat of Future floor polish to the entire model to seal the decals
out of 5
Apogee Rockets, the makers of Rocksim, recently released a warning that the Interceptor-E would not be sufficiently
stable coming off a standard length launch rod when launching on the Estes E9-4 recommended motor. They recommend the
following list of motors instead: D12-3, E15-4, E30-4, E18-4W, E28-28T, F12-5J, F24-7W and F39-6T. I have read several
accounts of perfect flights on the E9-4 on long launch rods as they allow the rocket to have enough speed to be stable.
Since the DART club 3/16" rods are only 36", I decided to take their recommendation and launch my
Interceptor-E on a E18-4W for it's first launch. After building the motor, I inserted it into the rocket and put a
couple of hand fulls of dog barf wadding into the body. After challenging another flier to a Interceptor-E drag race,
loading our rockets on the 3/16" launch rods, we walked back to the launch table and he hit the button!
We both flew on the same motor and the rockets flew practically identically. Fast and high! Excellent boost on the
E18-4 with deployment at just about the right time.
There are some online reports of the shock cord being too short that seem to have some validity based on the drag
race flights. I had used the stock cord and my friend has replaced his with some longer tubular nylon. On my
Interceptor-E, the nosecone snapped back and damaged the leading edge of one of the wing strakes. On my opponent's,
there was no damage. The 24" nylon 'chute seems to be sized just about perfectly for the model.
On my flight, the motor clip released and the reload casing spit out of the model, nearly hitting a spectator. For
future flights, I will be sure to masking tape the hook in place.
out of 5
The Estes Interceptor-E is a great upscale of one of the most beloved kits in rocketry. There have been some
excellent improvements from the original design, including the pre-cut fin slots and the extremely clean molding of the
plastic parts. While I chose not to use the fin reinforcements for sentimental reasons, I do appreciate the attempt to
update the look of the original model.
The loads of excellent looking decals for the kit were a nightmare that could have easily ruined the look of the
finished model if I hadn't been extremely patient once things started to go wrong with them. The add-on Excelsior
Rocketry decals took this model to the next level of fun. I love the Union Jacks on the tails!
out of 5
|2007-12-19||Donald Besaw's Estes Interceptor E||D12-3||-|| Excellent first flight, the D12-3 works great in this rocket. Nice slow boost to maybe 200 feet. I ...|
|2008-04-12||William Beggs's Estes Interceptor E||E9-4||-|| Great first flight! When it got to apogee it started to fly like an airplane. Really cool! |
|2008-04-13||Todd Mullin's Estes Interceptor E||E18-4||-|| Great drag race with Jim DeVeau! Ripped off the pad on this motor. Slight damage to right strake. |
|2008-04-26||Todd Mullin's Estes Interceptor E||E18-4||-|| |
|2008-06-14||Donald Besaw's Estes Interceptor E||E18-4||-|| Great flight, nice loud, smokey and fiery boost. Reached maybe 600-700 feet and the delay was more ...|
|2008-07-03||Donald Besaw's Estes Interceptor E||E28-4||-|| Excellent flight on the E28T. Fast punch off the pad but everything held up nicely. Short drift on ...|
|2008-07-12||William Beggs's Estes Interceptor E||E9-4||-|| Great flight |
|2008-08-30||Tim Reidy's Estes Interceptor E||E18-4||-|| Perfect Flight. This RMS configuration is beautiful |
|2008-11-08||William Beggs's Estes Interceptor E||E9-4||-|| Good flight and recovery. Rocket arced over and flew more like an airplane than a rocket. |
|2008-11-08 ||Robert Koenn's Estes Interceptor E||E9-4||-|| First flight on this bird. I flew nicely albeit not too high and arced a bit downwind. However the ...|
|2008-11-22||John Bergsmith's Estes Interceptor E||E28-4||-|| First flight - Nice boost with no issues. Recovered with no issues on the 24 chute. This seems to ...|
|2008-11-23||Bob Bernatchez's Estes Interceptor E||E18-4||-|| Great first flight! May want to consider cutting the delay down to 3 seconds in the future. |
|2008-11-23||Bob Bernatchez's Estes Interceptor E||F24-4||-|| Great flight!! Possibly the perfect motor for this rocket!! |
|2009-01-17||Bob Bernatchez's Estes Interceptor E||F24-4||-|| Kind of an underperforming flight. Probably due to the low temps. |
|2009-01-23||Donald Besaw's Estes Interceptor E||F24-4||-|| Beautiful flight, nice loud, smokey and fiery boost to maybe 1,000 feet. I might see a 24/60 F35W ...|
|2009-01-25||Todd Mullin's Estes Interceptor E||F12-3||-|| |
|2009-03-21||Bob Bernatchez's Estes Interceptor E||F24-4||-|| Shock cord snapped. Broke off one tip pod and cracked a strake. It was a clean break, so it should ...|
|2009-04-05||Howard Smart's Estes Interceptor E||F39-9||-|| 2 inch zipper. Repairable. |
|2009-04-18||Bob Bernatchez's Estes Interceptor E||F39-6||-|| Another bonus delay motor. Couple of the fins got dinged up, so they'll need to be repaired. I ...|
|2009-06-20||Bob Bernatchez's Estes Interceptor E||F24-4||-|| Bit of an early ejection. No damage, for a change. |
|2009-07-22||Donald Besaw's Estes Interceptor E||F35-5||-|| Awesome flight!!! This rocket and the 24/60 F35W reload were definitely made for each other. Very ...|
|2009-08-01||Donald Besaw's Estes Interceptor E||F24-4||-|| Great flight, flew in a drag race with another IE and F24W. Mine took off way late. Nice short ...|
|2009-08-09||Todd Mullin's Estes Interceptor E||F12-5||-|| |
|2009-09-12||Edward Chess's Estes Interceptor E||E9-4||-|| Maiden Flight was picture perfect. Both wing pods split along glue seam...very odd. Easily ...|
|2010-01-16||Bob Bernatchez's Estes Interceptor E||F24-4||-|| Great flight. |
|2010-02-20||Bob Bernatchez's Estes Interceptor E||F39-6||-|| Cut 2 seconds off of the delay. One of the tip tanks split open along the glue line, but should be ...|
|2010-02-21||John Bergsmith's Estes Interceptor E||E28-4||-|| Cool looking flight, recovered with no damage. |
|2010-02-21||Bob Bernatchez's Estes Interceptor E||F24-4||-|| Tubular Kevlar shockcord tore out of the model, pulling out a layer of body tube from the inside. ...|
|2010-03-21||Bob Bernatchez's Estes Interceptor E||F39-6||-|| Model cracked a fin on landing. Should be easy to repair. |
|2010-04-03||Donald Besaw's Estes Interceptor E||F39-6||-|| GREAT flight on the F39T. Very fast punch off the pad but everything held up nicely. Moderate ...|
|2010-06-05||Donald Besaw's Estes Interceptor E||F35-5||-|| Excellent flight, this kit loves this motor. Nice straight boost to maybe 1,200 feet and had a ...|
|2010-06-19||Bob Bernatchez's Estes Interceptor E||F24-4||-|| Model dove right towards 10' high corn. Found model after a multi hour search. |
|2010-08-14||Edward Chess's Estes Interceptor E||E9-4||-|| Great straight boost and excellent chute deployment. No damage. |
|2010-09-14||Tyler Kastner's Estes Interceptor E||D12-S||275 feet|| Came down fast. I suggest replacing the parachute with a bigger one. |
|2010-11-20||Edward Chess's Estes Interceptor E||E9-4||-|| Hard field landing broke left pod. Already repaired. |
|2010-11-21||Bob Bernatchez's Estes Interceptor E||F24-4||-|| Good flight, just some damage to one of the tip tanks. |
|2010-12-19||Bob Bernatchez's Estes Interceptor E||F39-6||-|| For some reason, the parachute never caught air. Landed flat with minor damage. |
|2011-06-11||Edward Chess's Estes Interceptor E||E9-4||-|| good flight, at apogee, no damage |
|2011-10-08||Edward Chess's Estes Interceptor E||E9-4||-|| Good boost into substantial wind. Ejection caused NC to slam into left wing pod, breaking NC in ...|
|2012-01-29||Bob Bernatchez's Estes Interceptor E||F39-5||-|| Perfect flight |
|2012-07-21||Stephen Morrow's "AIRWOLF" Interceptor E (modified)||H128||1911 feet|| Straight and fast flight. Raven altimeter showed velocity of 450 MPH. GPS tracker shut off during ...|
|2012-08-04||Bob Bernatchez's Estes Interceptor E||F39-5||-|| Little late on ejection, but a good flight. |
|2012-10-06||Bob Bernatchez's Estes Interceptor E||F39-3||-|| Perfect flight |
|2012-11-17||Bob Bernatchez's Estes Interceptor E||F39-3||-|| Great flight |
|2013-02-02||Bob Bernatchez's Estes Interceptor E||F39-5||-|| |
|2013-03-17||John Bergsmith's Estes Interceptor E||Aerotech E20-7 SU||-|| Great flight, straight boost. Great motor choice for this design. |
|2014-01-18||Bob Bernatchez's Estes Interceptor E||F39-5||-|| Great flight. |
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