SKU: 81686797432

Prime RES III Electric - KIT by CLM Pro

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Description

Prime RES III Electric - KIT by CLM ProThe Prime RES III is a re designed version of the Prime RES II model. The kit is available as a V Tail or a Cross Tail (X Tail) The new version has two spoilers, a re designed fuselage with built in firewall for motor installation, and a completely new wing design, which reduced all up weight and provides better flight characteristics. The wing is a continuous ellipse throughout its span which has provided the model with good stability and forgiving

The Prime RES III is a re-designed version of the Prime RES II model.

The kit is available as a V-Tail or a Cross-Tail (X-Tail)

The new version has two spoilers, a re-designed fuselage with built in firewall for motor installation, and a completely new wing design, which reduced all up weight and provides better flight characteristics. The wing is a continuous ellipse throughout its span which has provided the model with good stability and forgiving handling during flight.
The model is designed to be an all-round model for weather conditions from low thermals to strong winds. The model has been re-designed and optimized to the last detail and it all came together perfectly. Most importantly, when flying and competing, adjustments can be made quickly in the field.
All parts are laser-cut from carefully selected, high quality balsa and light plywood.
Due to its aerodynamic design and excellent performance, it is very stable and is a joy to fly.

Build Manual

I highly recommend perusing the excellent build manual V-Tail  OR build manual X-Tail

The model is designed and produced for competitions according to FAI F5L RES competition rules.

Compared to the previous version, the new model has several improvements and features, such as:

  • The wing halves now connect on the sides of the fuselage
  • Dihedral in the middle of each wing section for better stability
  • A built in firewall for motor installation
  • A new carbon tail boom which is longer than the previous version
  • The canopy now has a magnetic closure for easier and faster closing - as well as the hatch cover on the bottom of the fuselage

Kit includes:

  • Detailed plans sheets, printed in color
  • Detailed building manual with step-by-step instructions and images - download .pdf
  • CNC cut jigs from styrofoam (underside of wings) for easier wing gluing
  • Laser cut ribs and all other required parts
  • Templates for aligning angled ribs for gluing
  • Carbon tail boom and carbon tube for main spar
  • Carbon wing joiner
  • Steel wing joiner for use with ballast
  • Rudder horns and the various fasteners needed for completion
  • Neodymium magnets for the canopy hatch and spoilers
  • Pushrod cables and hardware for connecting control surfaces
  • Various carbon parts and accessories needed for model completion

Additional details for each segment of the model can be found below.

Wings:

To achieve better stability the wing was designed with multiple segments. The wing is constructed in two pieces which are connected to the fuselage in the middle.
The wing center panel, mid panel and tip panels all have dihedral for improved stability.

The wing is a continuous ellipse throughout its span which has provided the model with good stability and forgiving handling during flight
The wings are joined with either carbon or steel joiners (ballast) and incorporate pre-sized pins so that everything fits together perfectly.

To ensure strong connections that will transfer loads from the mid panels of the wing into the center panel, angled carbon joiners are used to connect the wing components together.
The kits also includes a carbon tube which is used as main-spar. It is reinforced with kevlar where wing segments are connected.
You also get a CNC cut styrofoam jig for easier wing alignment and glueing.

The main construction of the wings is built with full balsa ribs, plywood for trailing edges and reinforcements are used where needed. Composite materials are used for leading edges and main-spars according to FAI F3 RES rules.
All parts are laser cut and fit together perfectly. There is minimum rework needed, you only have to assemble everything and bond according to the manual.
The center panel design incorporates two separate spoilers with built-in magnets that help perfectly close the spoilers when not activated.

Fuselage:

The fuselage has a nice aerodynamic shape with smooth transitions. Again, all parts are laser cut out of balsa and light plywood.
The fuselage is reinforced in strategic areas with a selection of materials which provide improved strength and stiffness.

The fuselage is adapted for the F5L version, which means it has a built-in firewall on which a 30 mm diameter spinner is mounted.

The canopy is designed in a way that there is enough space to easily install and remove the battery.
To facilitate and optimize the installation of components in the fuselage, we made two canopies. One on the upper side in which the motor, ESC, batteries and receiver are installed, and the other is a hatch on the bottom side under the center of gravity of the model in which the servo motors are installed.
The canopy and hatch are held on with magnets.

The tapered carbon tail-boom is made from several carbon types. The materials are strategically oriented, so the boom has maximum strength and minimum weight.
The tail-boom is predrilled for mounting the rudder/elevator which are disigned using carbon rods as the support mechanism.

Tail:

The tail is also designed to have excellent aerodynamics. It is a construction of laser cut balsa components.
If desired, there is an option to reinforce the elevator/rudder with carbon rectangular rod for stiffness.

The Rudder / elevator has pre-prepared carbon pins which are inserted into drilled tail-boom and is easily mounted to the fuselage.

The carbon tail boom has predrilled holes for mounting the rudder / elevator which contain carbon rods.
The rudder and elevator are detachable for their protection and ease of transport.

Prime RES III specifications:
Wingspan: 1988 mm 78.26"
Length: 1235 mm 48.62"
Wing area: 35 dm2 542 sq. in.
Airfoils: AG 24-26 mod AG 24-26 mod
Weight structure: 275 g 9.70 oz
Weight covered: 370 g 13.05 oz
Flying weight from: 450g 15.87 oz
Control surfaces: RES RES
Center of gravity 78-84 mm from wing leading edge

 

Prime RES III parts weight :
Fuselage 52 g - 1.83 oz
Tailboom 17 g - 0.59 oz
V-tail 12 g - 0.42 oz
Center panel - half 50 g - 1.76 oz
Middle wing panel 30 g - 1.05 oz
Tip panel 12 g - 0.42 oz
Carbon joiner 6 g - 0.21 oz
Bolts 3 g - 0.10 oz
Bowdens 10 g - 0.35 oz
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SKU: 81686797432

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Dr. Know
Massapequa, US
★★★★★ 3
I had heard of this book when it made a splash in 1987, I did not have time then...
Format: Paperback
I did not have time to read this book when it came out because I was a young father, and I was at the beginning of my professional career. Now, almost 40 years later, I am a grandfather and I within months of the end of my professional career. So I made time to read it, finally. What instigated me to do so now, is all the recent activities concerning UAPs and the unexplained sightings of UAPs in the night skies over military bases in New Jersey and, also, in England. Put simply, I was in the mood to give this book a chance. The "story" starts strong with Whitley Strieber's descriptions of his apparent contact with the "visitors." He is a talented fiction writer and that comes through, but after the first 60 or so pages, the story drags and becomes increasingly repetitive, and hard to read. The penultimate chapter may have read well in 1987, with its buzziness, and the power of three....but in 2025 it doesn't. It just sounds so out-of-date like an Oldsmobile Cutlass with a T-top. (Yes that was a real car...Google it.) Then, there are chapters that are nothing more than transcripts of what Whitley, and his late wife, Anne, had said while in sessions under hypnosis; they are barely understandable, let alone readable. The allusions to quantum mechanics later in the book adon't fit very well, and seem to be an afterthought and are very hard to take. Clearly, Streiber's ideas are not grounded in the science, but in a kind of typical layman's misunderstanding of quantum mechanical "concepts." That is there is an extension of the theory into things it is not meant to explain, and proves that having a little knowledge about something is dangerous. All-in-all, I suffered through the "last," 229 pages (including two appendices), but I can say I have read it from cover to cover. What is my opinion of the abduction story? I hate to be unkind, but it seems more like the memory of a hallucination, or of a very bad and graphic dream, than something that actually happened. It seems to be the product of a fertile and creative mind of a talented author. Yes, there are other people who also claim to have been abducted, and there are some commonalities among their claims, and I know that their numbers should add credibility to their stories, and I know it is unkind to doubt them, but I do and I remain skeptical. So did Whitley Streiber write this book knowing full well that is was actual a work of fiction while claiming it was non-fiction, or did he write it honestly thinking that he was sharing objective truths? On this, it is very hard to know...it is plausible that he really believes these things happened to him, and that he wrote about them sincerely. The author himself seems never to be sure. His lie detector results seem to indicate that he is telling something that he truly believes, but one never knows for sure. To sum up, I am glad the book is no longer a mystery to me. My curiosity was satisfied and that is enough for me, but it took work.
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Reviewed in the United States on February 8, 2025
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Steve D.
Waukegan, US
★★★★★ 5
Read this book to begin your study!
Format: Kindle
If you can read only one book on UFO abductions, read this one! This book is amazing and will give you a very good idea about what these UFO abductees are experiencing. This is the book that launched me on an ongoing UFO study which has led to my obtaining and reading tons of books on UFO and abductions. While not an abductee myself and, in fact, I have arguably never even seen a UFO, I know that there is something to this phenomenon that we do not understand. The interest seen in the public square now and the government's greater focus on the UFO phenomena leads one to conclude that what is happening is real and unknown. While I personally believe that the UFO phenomena is a spiritual one involving the unseen spirit world, that is just one of the many theories out there. Read this book and embark on a fascinating journey for yourself.
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Reviewed in the United States on May 14, 2022
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lynn sweeney
Whiting, US
★★★★★ 5
Loved the book
Format: Paperback
Awesome book. Great reading
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Reviewed in the United States on November 19, 2025
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Karen
Massapequa, US
★★★★★ 4
Classic in the UFO Lore
Format: Paperback
Fascinating read about the abduction phenomena from a first hand account.
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Reviewed in the United States on June 2, 2026
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Amy Lubchansky
Fort Morgan, US
★★★★★ 5
What evolution looks like when it's applied to the conscious mind
Format: Kindle
It's difficult to say what this book has meant to me over the last 30(?!) years. It is one I return to again and again, and I always get something new from it. The Strieber's commitment to living in the question and keeping it open without jumping to conclusions about where the beings originate and why they are here should be a master class for investigators in the field. There were concepts so foreign to me when I first read this as a teen who was only there for "the alien stuff" that now resonate so deeply. Concepts beyond the question of the visitors; ruminations on spirituality, meditation, marriage that have been a guiding force in my life. I grew up surrounded by awful marriages, reading a man talk so reverently about his wife and their life together actually changed my perception of what was possible in relationships. This book has ruined most other books by experiencers for me, because while others may certainly have interesting stories, they aren't all gifted writers of this caliber. The sincerity, confusion, fear, and ultimately bravery to confront the unknown are palpable. I can't wait to read the new introduction and dive into the mystery all over again.
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Reviewed in the United States on July 27, 2022

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