Wednesday, August 3, 2022

Binge Build 2022 , Part 2 - Off To A Good Start!

 The BlastFromThePast model rocket shop has been a virtual flurry of activity this past week.  Good thing, because weather conditions outside  have either been too hot, too rainy, or too windy to do much in the way of flying.

The nine-model binge build is now in full swing. Here are some progress pics:

All of the airframe body tubes for the various models are cut to length, and most have been through the seam filling and sanding process. Only the shorter BT-5/BT-20 tubes are left. I should be able to knock those out quickly.

Alongside the tubes, I have completed assembling the motor mounts for the larger models.  A couple of them include hand-cut centering rings and motor blocks as I have depleted my supply of manufactured versions. Also in short supply were motor hooks, so most of the ones used here were fashioned from old windshield wiper spring steel. 

Finally, the ol' X-acto knife has seen a lot of action as well.

Fins for the Nike-Smoke, Nike Apache, Mercury Redstone, Viking 4, and a BT-20 sized booster stage have all been cut out.

At lower left are all the balsa parts for a Rascal rocket/glider.

Moving on....

Saturday, July 30, 2022

Friday, July 29, 2022

Back To "Square" One

 During the past couple of years, I have been flying a scratch-built replica of the Mark II Rock-A-Chute model rocket, which most of you are aware, is the design that set the standard for the hobby as we know it today.

To date, the model has flown ten times, all being recovered on a square red plastic parachute to keep things historically authentic.

To my delight, I have found that the square 'para-sheets' have performed very well, despite being so simple.  Along with the Mark II, I have taken to using them in other small, light LPR birds in the fleet, notably the Astron Alpha clone.

Once deployed and filled with air, they descend just as slowly (and sometimes even more so) as hexagonal or round parachutes of the same surface area.

On one particular Alpha flight, I was even able to run under the descending bird and easily catch it before it reached the ground. And that's not an easy feat at my age!

Recently, I have been on a kick of building a bunch of new parachutes, as my inventory of them had become somewhat depleted.

On this go around, I've decided to construct square chutes on anything twelve inches and smaller.  

A whole slew of 6, 8, 10, and 12 inch square chutes ready for assembly.

Since constructing chutes is one of my least favorite aspects of the rocket building process, it is a delight to knock these babies out in quantity.  They are easy to lay out and cut to size and require the attachment of only four shroud lines.

A square 12-incher, veteran of eight rocket flights.

Elegant simplicity!


Friday, July 15, 2022

2022 Binge Build, Part 1 - The Adventure Starts Here...

 Yes, Boys and Girls, it's time to turn on the lights in the BlastFromThePast Secret La-BOR-atory, roll up the sleeves, don the tin-foil helmet, open up a case of Mountain Dew, and execute a few celebratory arm-pit farts!

 Well, maybe not the latter item. I do have my dignity to maintain, after all,...

Anyway, it's the great 2022 LPR Binge Build!

This year's roster consist of nine models (so far) that I hope to complete by EOY.

The 2022 Binge Build will be somewhat top-heavy on scale models, or should I say, sport scale models, followed by some boost/gliders, a sci-fi bird, and a couple of 'old-fleet-favorites' re-builds. Here's the list:

1. Viking 4 sport scale. This one has been on my build wish-list for quite some time, so it's high time to get started.

2. Nike Apache - the Estes kit which I bought several years ago. but has been neglected.

3. Nike Smoke - another long awaited Estes kit.

4. Mercury Redstone -Estes again.

5. A.R.V. Condor - an OOP Estes kit that was given to me by Mike Goss a little over a year ago.  Dual gliders. Right up my alley.

6.  Deltie Airshow. What's better than two gliders on one model? Three, of course! Ever since I saw the plans on JimZ for this kit from Edmonds Aerospace, I've been intrigued.

7. Rascal Rocket/Glider.  This is an old Paul C. Conner design published in The Model Rocketeer way back in 1974. I built one back in the day and recall how much fun it was to fly.

8. Mountaineer IV. This is actually an Estes Omega. I had Mountaineers I through III back in the old fleet, two of which were built and sent to me by Herb Desind, for whom I flew numerous Cineroc flights.

9. Black Hole Space Probe. This will be a clone of an old Estes Sci-Fi kit. It uses a PNC-50BB Nose cone (think Black Brant III), one of which I happen to have hanging around in the parts box.


There may be one or two additional models that will get added to the list if I happen to get motivated or inspired enough.

Again, this new blog series won't be a blow-by-blow build thread, rather a string of progress posts. Any unique or unusual build techniques or challenges along the way might get greater detailed treatment.

Oh, and I promise not to use the goofy alliterative post titles like I did in the 2021 Binge Build.

This is a serious blog, by gosh!

I am still on the fence, though,  about the arm-pit farts...

Cheers!

Monday, July 11, 2022

Another Random Rocket Part Find....

 While I am out shopping, I constantly keep an eye peeled for any item that could possibly be useful in model rocketry.

This morning, I happened to be in the paper plate/napkin aisle at the neighborhood Wal-Mart when I espied these:

Non-plastic bio-degradable drinking straws. 

Why not?   I picked up a box for $3.66 and hauled them home.

These straws are very sturdy and smooth.  No spiral seams to worry about.  The great thing is that they are identical in diameter to standard 3/16" launch lugs, as well as being 7-1/2" in length.

Besides launch lugs, I can see other uses in model rocketry such as detailing for Sci-Fi models, conduits, etc. 

I will definitely make use of the straws in the near future and let you all know how well they work and if they take paints and glues well.

Cheers! 

July 13th update:

After playing around with these straws in the shop, I learned that they are made from a recycled plastic compound. White glue will not adhere to them, though they work fine with CA and epoxy.

Thursday, June 30, 2022

Launch Date: June 27th, 2022

 A large, empty, well-manicured soccer field complex. Clear skies.  Little wind. A group of rocket nerds. And a bunch of rockets.

What more could an old BAR ask for?

Yep, once again it was time for another Dove Valley launch.

Dave Bauer and I were the first on the scene around 10:30 a.m., only to discover that about one-third of the normally deserted field was given over to kids' soccer practice.

I walked down on the field and found one of the coaches who told me they would be there until noon. I observed that there was still plenty of rocket flying room a safe distance away from the soccer activity.

While Dave stayed at his car to prep some birds, I hauled my gear to the field and began setting up. 

Wishing to get the two boost gliders I had brought along flown before any significant wind picked up, I started off trimming and prepping them.

Jim Gazur rolled in about the time I sent the newly repaired Wasp B/G aloft on a 1/2A6-2.


The model boosted nicely, separated, and immediately went into a tight, spiraling descent. Even though the model had glided well on several pre-flight hand throws, it did not do well on powered flight. No damage, though, and everything was recovered OK.  

This was followed immediately by the Mini Maggot 3 B/G for its 6th flight. 

Boosting on a 1/2A3-2T, the bird flew straight up, separated, and settled into its signature tight right- hand glide. The cel phone video I took of the flight showed a flight duration of 36 seconds.  Unusual, because this bird usually glides for twice that amount.

About this time, Jim Gazur had his Min-Dart 2 Discus Launch glider RC-rocket-conversion ready to go on the pad. 

Flying on a Quest C6-3, the model boosted in a severe inside looping flight, which didn't allow Jim to gain RC control.

After a few trim adjustments, Jim tried a second attempt with the same results.  He believes the problem may lie with the camber setting of the full wing flaps.  

Unfortunately, I did not obtain a flight picture with this one as I was launching the bird while Jim manned the RC controller, but here is a pre-flight look:

My third flight of the day went to a Quest Nike K.  Being a relative heavier model with plastic parts, I opted to use a C5-3 motor.  This was the ideal choice as the model turned in a picture perfect flight.



At this point, Dave Bauer had made his way to the field with his prepped models.

Since a little wind had started picking up and shifting direction, we decided to gather up our operation and relocate to the northeast corner of the field.  
This would afford us plenty of downwind recovery area.

Dave's first model off the pad was a Photon Disruptor flying on B6-4 power.
The bird turned a great flight, disrupting lots of photons on its way up, no doubt!



By now, Brock Wood had shown up on the field, so we were ready to carry on with four rocketeers.

Jim Gazur's next model to fly was his plastic conversion 1:35 scale V2 from Spacemonkey. This model had been damaged at a previous launch by an Aerotech D21 CATO.
Today, the model turned in a spectacular flight on a new Aerotech/Quest Q-jet E26-4W.


 



I'm not entirely certain, but I believe this may be Dave Bauer's tube rocket:



Boosting very nicely, the model ejected the parachute, but it was a para-wad return.  Surprisingly, the model exhibited a bit of glide characteristics on its descent to terra firma!

The next model out of my tote was the Steampunk Protostar for its long-awaited maiden flight.




Boosting on D12-3 power, the bird turned in a beautiful flight and recovery. The Protostar did receive its first battle damage, however.  Even though it floated down under a fully deployed parachute, a fin pod popped off on landing.  Easy repair.

Dave brought along a beautiful futuristic model call the Sirus Cestrus:

The bird turned in a spectacular flight on D12-3 power, however....


....no parachute deployment !  
Here is a shot of the model a split second before it attempted to enter a region of 
extremely high mass to volume:


Dave says that the shock cord is salvageable....

Next up on my flying agenda was the Skeeter Eeter 3 upscale Mosquito.  The bright orange model turned in a perfect high flight on C11-5 power.


About this time, we were approached by a gentleman and his two small sons, all carrying model rockets!  We welcomed them to join us and learned that their names are Michael, Dylan, and Owen Nelson. Michael told us that they frequent Dove Valley to fly their models. Once all introductions had been made, the newcomers settled down to assemble launch pads and ready some rockets:

The next rocket to be launched belonged to Brock Wood, for his first flight of the day. This is the "Monstrosity" cluster model:

The bird made a great flight on three A8-3 motors.  It was recovered by a three-parachute system, two of which deployed.

Next, Dave Bauer brought out the big guns. This was his Sunward Pyramid powered by a G53 motor.  The unusual model roared off the pad and headed into the Colorado blue atop a column of black smoke.


Successful parachute deployment capped off a magnificent flight!

Since the wind had picked up, I decided to go with lower power flights, so out came the Satellite Interceptor clone.


The model turned in a beautiful flight, though one lower fin broke off when the model landed on the Dove Valley turf.  Again, another easy repair.

Soon after, Brock had his second model ready to go aloft. This was his Custom Rocket Co. Sport CHAD 2-stager:

Flying on a B6-0/A8-5 motor combo, the bird turned in a great run.  It was recovered by young Dylan Nelson, shown here:

Shortly after, Dylan and Owen were seen busy prepping a brightly painted ESAM-58 for launch:

And, liftoff...for a perfect flight on C6-5 power!

Next in line, Dave had another interesting model on the pad and ready to go:

This is an SU-47 Fighter flying on a D12-5 motor.  The model turned in a very impressive, successful flight.

The Nelson family was soon back in the action with a fine Estes Mean Machine.  A bit of difficulty was encountered due to the wind... the mode kept blowing over on the pad!

Dave stepped in and offered to hold onto the model until very close to launch time.  

This didn't work:

Yikes !! Don't push that launch button !!!"

Other participants' launchers were tried, but none were bottom-heavy enough to keep the model upright in the wind.  Ultimately, the flight was scrubbed.

My final flight of the day went to the Mark II Rock-A-Chute clone.  This would be the bird's 10th flight.

The veteran bird turned in a great flight on an A10-3T motor, recovering successfully on its red square parachute.

Next, Brock had his final flight prepped and ready.  This is a Quest Q-EZ Payloader kit which Brock had obtained with a missing fin can half.  He calls the model the 'Salvage Payloader'.

Anyway, the model flew great on a B6-4 motor. 

The final flight of today's Dove Valley launch was made by the Nelson family's Estes Vapor.  Flying on an E12-6 motor the model boosted nicely and soared very high before deploying its parachute. 

With the prevailing wind, however, the model drifted well out of the perimeter of the park.

Michael gave chase but, sadly, returned empty handed. The model went un-recovered.

One last pic:

Brock Wood had laid his camera under my launcher pointing up at the Steampunk Protostar prior to its flight.  Strangely, this photo immediately brought to mind the old Pink Floyd tune - 

"Set The Controls For The Heart Of The Sun"

All in all, it was a very enjoyable day of model rocket flying at Dove Valley.  If my count is correct there were 21 flights put up by the participants. 

And, we've added some new folks to our 'Band of Merrie Rocketry Men'.  Michael has indicated that he and the boys would like to come to the next one.

Stay tuned.....