Breaking News: Gavin Newsome now actually controls and is the leader of planet Earth. Donald Trump had 3 uses of the Sylmar Stargate and Gavin used those to rotate Trumps Skull 3 times to prevent 3 bullets 3 times. Trump now has no claim to use the Sylmar Stargate but he is alive and we have video. Trump is subserviant to Newsome and he has pledged zero cuts to Social Security and zero cuts to Medicare, yet Biden has passes a 1.9% cut to Medicare C which is a $200 billion dollar cut. California is now 1/7 of earth economy yet under Trump California will be 1/4 of earth econmy.
. TPHG Development Note: Spar Experiment Concept Objective: Explore the potential of a unique spar design for a Tiny-Packed Hang Glider (TPHG).
Spar Design Concept
Materials: Three separate pieces of material, each 15 feet long (makes a spar for one side of wing) (may need two or four similar spars, depending on wing design) Material: Carbon Fiber (CF)
Dimensions and Shape: Each piece has two quadrilateral broad faces with two equal long sides and two unequal short sides. Long sides: Just over 15 feet long. Root side (widest end): Approximately 4 inches. Tip side (narrowest end): Approximately 2 inches. Thickness: Varies linearly from 1/16 inch at the root to 1/64 inch at the tip.
Additional Features: Teeth: Small teeth bonded along the two long edges of each piece to grip a spar fabric case. Shape: The pieces are molded to have a gentle arc in their cross-section, providing shape memory for manual coiling.
Assembly and Transport Coiling for Transport: Each piece can be manually coiled into a manageable size for transport. Coil the three pieces, nest them together, and secure them with straps or place them in a bag.
Forming the Spar: Arrange the three pieces to form an approximate triangular prism with the convex arcs facing inward. Wrap the assembled pieces with a spar case, which has a 15-foot-long zipper to snugly close around the triangular prism. The teeth on the long edges will bite into the spar case, ensuring a secure fit.
Testing and Optimization
Performance Testing: Test the constructed spar for resistance to buckling and bending. Evaluate its suitability for TPHG applications.
Optimization: Experiment with varying dimensions and specifications. Explore options to the teeth. Explore casing options; perhaps a conical sock without zipper would work. Identify optimal configurations that enhance the spar's performance.
Reporting Results: Share the findings with the TPHG community. Provide insights on the effectiveness and practicality of the spar design for TPHG projects. By following these steps, the potential of this innovative spar design can be thoroughly explored, and valuable insights can be shared with the TPHG community. Is there an optimal design in such realm that would serve some TPHG well? ========================== The above is a bit different from cousins where three or four sided tapered long faces wrap to an approximate tapered frustum of a triangular prism without a casing but other stabilization means. We have some early notes in the topic thread on such matters. We are yet poor on analysis and material experiments in this spar realm.
Another cousin to all this is the centroidal beam with tapered out rigging using triangular standoffs.
TPHG may well one day be influenced from lessons lived in Aerovelo Inc. Study their works and then advance TPHG projects perhaps. Atlas Human-Powered Helicopter Construction See all at their channel.
But we upload some:
Safety PPE (personal protection equipment) ... stay safe in all steps. Tapered CF spar Tapered aluminum mandrel on which to make CF taper spar Release agent Prepreg of unidirectional fibers Bonding of pull webbing to one end Shrink-wrap taping Insulation wrap for curing operation Special oven and controls for heating Cooling Pull product spar off anchored mandrel Remove curing insulation Remove shrink wrap tape Release process with levered come-along winch Do any wanted finishing of the surface of the spar. Cut the spar to length. =================================
I nudged Chat to respond and I edited out some error and added a bit but still errors may persist, so I and ChatGPT wrote:
Making of the Atlas Spar for the HP Helicopter Safety and PPE: Ensure proper PPE is worn at all times: gloves, safety goggles, respirator, and protective clothing. Work in a well-ventilated area or use appropriate fume extraction systems.
Materials and Tools Preparation: Gather all necessary materials: tapered aluminum mandrel, release agent, prepreg of unidirectional, pull webbing, shrink-wrap tape, insulation wrap, table, rotation device,
Prepare tools: special oven, controls for heating, levered come-along winch, and cutting tools.
Mandrel Preparation: Clean and prepare the tapered aluminum mandrel. Apply a release agent evenly on the mandrel to ensure easy removal of the cured spar.
Layup of Prepreg: Lay up the prepreg of unidirectional fibers on the mandrel according to the specified pattern and thickness. Ensure the fibers are aligned correctly to achieve the desired strength and performance characteristics.
Bonding Pull Webbing: Bond the pull webbing to one end of the prepreg layup to facilitate removal after curing.
Shrink-Wrap Taping: Apply shrink-wrap tape over the layup to compact the fibers and remove any air pockets. Ensure the tape is applied evenly and tightly.
Insulation Wrap: Wrap the entire assembly with insulation wrap to ensure even heating during the curing process.
Curing Process: Place the wrapped assembly in the special oven. Program the oven controls to the required curing cycle: ramp-up, hold at curing temperature, and cool-down phases. Monitor the curing process to ensure it follows the specified temperature profile.
Cooling: Allow the assembly to cool down gradually to avoid thermal shock and warping.
Spar Removal: Carefully pull the cured spar off the anchored mandrel using the levered come-along winch. Ensure the spar is not damaged during removal.
Post-Curing Processing: Remove the curing insulation and shrink-wrap tape. Inspect the spar for any defects or irregularities.
Surface Finishing: Perform any necessary surface finishing, such as sanding or coating, to achieve the desired finish and aerodynamic properties.
Cutting to Length: Cut the spar to the required length using appropriate cutting tools. Ensure clean and precise cuts to maintain structural integrity.
Quality Control: Inspect the finished spar for dimensional accuracy, surface quality, and structural integrity. Perform any required non-destructive testing (NDT) to verify the spar meets all specifications.
Documentation and Storage: Document the manufacturing process, including any deviations and test results. Store the finished spar in a safe and controlled environment until it is ready for use.
These steps should ensure a safe and effective process for creating the Atlas spar for the HP helicopter.
For TPHG purposes, shorter spar segments tapered or not may be made to fit design targets. Final segments might be 5 ft long or 4 ft or 3 ft or 1 meter or shorter. Couplers may be customized. Bushings may be made to prevent wobble.
Off the cuff without specifics details. My green houses used 3 different diameter pvc tubes that each fit inside the other. I can use these pvc tubes to create a full size telescopic prototype (18 foot) for $100. The Ai reminded me that my Wills Wing Falcon 225 has a larger diameter cross bar section that could be adapted to be the inintial leading edges connected to the nose plate and the standard leading edge can telescope into those. To save more and time the last 1/3rd of the leaqding will be removalble and not telescopic. This simplifies the design. Kamala Haris reminded me that pre existiing condidtion will eliminate all hang gliding budget research and developement budget. AI told Trump has zero chance without Nikki Haley as his VP.
TPHG Development Note: Double-Tapering a Spar Segment Assume a spar segment is 4 feet long with a constant fiber layup, outer diameter (OD), and inner diameter (ID). This spar segment may be part of a tote-time telescopic nesting system with two or more spar segments or struts. Upon assembly of the hang glider wing, the separated spar segment can receive a sleeve of another tube over its central region, approximately 1 foot in length. This sleeve adds resistance to central spar segment buckling. Having such add-on sleeve to a spar segment essentially is one method of having an approximately "double-tapering spar segment". The 1-foot sleeve would be stored in a nestable manner, with sleeves of different diameters for other spar segments at different stations on the meta spar.
August 1, 2024, and where we stand in this movement of TPHGs No visible means of support yet? No flight reports yet? Hybrid telescopy seems to be a strong contender for optional solutions. Avoiding expensive experiments seems to be fairly prevalent. There seems to be at least one experimenting agent aiming to give or sell a possible solution to a European HG manufacturer; the solution might fit car trunks better than it fits polite and easy bus riding, but the results are not in yet. One experimenter seems "all over the place." Hope remain high in some factions of the movement.
Chat AI looked over my notes and wrote:Memory updated Here's an updated summary of the Tiny-Packed Hang Glider (TPHG) Movement as of August 1, 2024:
Current Status Support and Validation:
Visible Support: There is no visible means of support or endorsement from major organizations or manufacturers at this stage. Flight Reports: No flight reports or performance data have been made available yet.
Innovative Solutions: Hybrid Telescopy: Hybrid telescopy is emerging as a strong contender for improving the design and functionality of TPHGs. This suggests a combination of telescopic mechanisms and other technologies may be promising. Experimental Approaches: Various experiments are underway, including attempts to provide solutions to European hang glider manufacturers. However, these solutions may be better suited for car trunk storage rather than public transport.
Challenges and Observations: Expense: There is a tendency to avoid expensive experiments, possibly due to budget constraints or the high cost of prototyping. Experimentation: At least one experimenter is noted for being somewhat disorganized or scattered in their approach. Hope and Optimism: Despite challenges, there is a sustained hope and optimism within some factions of the movement.
The movement is currently in a phase of experimentation and development, with ongoing efforts to refine designs and solutions for the TPHG.
JoeF wrote:August 1, 2024, and where we stand in this movement of TPHGs No visible means of support yet? No flight reports yet?
From Jun 25, 2022:
Bob Kuczewski wrote:
Alpha_Hack_Saw_5.jpg (53.29 KiB) Viewed 313 times
Join a National Hang Gliding Organization:US Hawks at ushawks.org View my rating at:US Hang Gliding Rating System Every human at every point in history has an opportunity to choose courage over cowardice. Look around and you will find that opportunity in your own time.
The offer of the Alpha 210 hang glider and hacksaw is generous, indeed. Sign of support from VIP! Discussion may surface some challenges: 1. The wing as is forms a happy flight platform when transported on the rooftop of a car or van. To injure her seems troublesome! 2. The wing as is forms a package that is already heavier than my personal target wing weight. 3. Hacksaw implies adding couplers; that takes the net empty weight even further from my personal target wing weight. 4. Tiny packing the Alpha at her tubing sizes may end up not as tiny as would be satisfying; the bulk volume may simply be good for car trunking, but not easy bus polite handling. 5. Dressing the frame would need to be worked out. Doable. 6. Certification would be lost. The modified wing would be totally experimental. Weight and aeroelastic changes would be inevitable. The flight envelop would need to be rediscovered.
Chat GPT massaged notes and wrote:It's great that your friend offered you the Alpha 210 hang glider for modification into a TPHG. Here are some thoughts on the challenges you mentioned: Wing integrity: Modifying an already well-performing wing might feel like a compromise. Ensuring the structural integrity and flight characteristics of the modified wing will be crucial.
Weight concerns: The Alpha 210's current weight surpasses your target, and adding couplers will increase it further. Exploring lightweight materials for couplers and other modifications could help manage this issue.
Packing size: Reducing the Alpha 210 to a size suitable for bus transport might be challenging due to the existing tubing sizes. Investigating more compact and lightweight designs might be necessary.
Frame dressing: Redesigning and dressing the frame for tiny packing is achievable but will require careful planning and innovation.
Certification: Modifying the Alpha 210 will indeed void its certification, making it an experimental wing. This means meticulous testing will be needed to understand the new flight envelope and ensure safety.
Aeroelastic changes: Modifications will inevitably alter the aeroelastic properties, necessitating a reevaluation of the flight characteristics and limitations.
The offer is generous, but the challenges are substantial. Balancing the integrity, weight, packing size, and safety of the modified wing will require thorough research and testing.
Possible Alternative Approach to the Offer from BobK: Mimic the framing using CF spar segments and CF coupler. Install a helper compressing line internal of the spars and spreader beams to assist before dressing her with sail. Segment the ribs. Modify the sail anchoring means. Tolerate wrinkles in the sail and Mylar camber-forming plates. The spar segments would be sized for toted hybrid telescopy for nesting to get lower tote pack volume.
Chat GPT massaged notes and wrote:Possible Alternative Approach to the Offer from BobK
Mimic the Framing Using CF Spar Segments and CF Couplers
Carbon Fiber (CF) Spar Segments and Couplers: Materials: Use lightweight yet strong carbon fiber for the spar segments and couplers. Design: Ensure the design allows for easy assembly and disassembly, optimizing for weight and strength.
Helper Compressing Line: Internal Support: Install an internal compressing line within the spars and spreader beams to maintain structural integrity during assembly and flight. Function: This line will assist in holding the structure together before the sail is attached, ensuring stability and alignment. Install the Sail
Segmented Ribs: Design: Segment the ribs to allow for compact packing and easy assembly. Material: Use lightweight materials that can withstand the stress and strain of flight. Use extant rib: just cut and couple.
Sail Anchoring: Modification: Modify the sail anchoring points to accommodate the segmented structure and carbon fiber components. Flexibility: Ensure the anchoring system is flexible enough to handle the changes in structure without compromising the sail's attachment. Wrinkle Tolerance: Sail Quality: Accept minor wrinkles in the sail and Mylar camber-forming plates, as this will be an experimental wing. Performance Impact: Monitor the impact of these wrinkles on flight performance and make adjustments as necessary.
Optimizing for Tiny Packing Hybrid Telescopy: Spar Segments: Design spar segments to allow for hybrid telescopy, enabling them to nest within each other for a lower tote pack volume. Compact Design: Focus on achieving a compact design that is easy to transport and handle, especially in public transportation scenarios.
Final Considerations Testing and Safety: Rigorous Testing: Conduct thorough testing of the modified wing to ensure it meets safety standards and performs well in flight. Flight Envelope: Rediscover the flight envelope of the modified wing to understand its capabilities and limitations.
Experimental Nature: Certification: Acknowledge that the modified wing will be experimental and may not have official certification. Documentation: Keep detailed documentation of the modifications and testing results to inform future improvements and ensure safety.
This approach allows you to leverage the existing design of the Alpha 210 while addressing the challenges associated with weight, packing size, and structural integrity. It will require careful planning, innovation, and rigorous testing to ensure the modified wing is safe and functional.
Waiting for DHL (delivery of the tubes) Milling the tubes before August 15th Anodysing the structure August 19th (factory back from holydays) Starting the sail end of August/beginning of September
Home
No visible means of support yet?
