Daily Archives: May 26, 2022

8 posts

Chairman’s Corner May – June 2022

Hello Club members, I hope all members are doing well and staying healthy.  Here we are at the end of May and our club meeting is this weekend, so I hope a lot of our members come out and join us for this day.  We have a lot to discuss with our members on what we have for the future of the club.  This Saturday Jim Bonnardel who is our event coordinator will be having the famous Bomb Drop, so be sure you get out to the field and join the fun with rest of our members. 

This past month our field was closed due to the KOZ event and it appears that some of our chairs grew legs and walked away.  Unfortunately, we did not get them back.  The club asks if any of our member have purchased new chairs for their backyard, I ask if you can donate your old chairs and bring them to the field.  It sure would be greatly appreciated if you could.  Funny part of this, the blue chairs were not taken, that because they are heavy to move around, so at least we still have those.  We just lost all the smaller plastic chairs and the nice outdoor chairs.

Not sure if any of you heard about “Red Bull Airplane Swap” which did not work out as planned.  This event happened on April 24th.

Sunday’s, vigorously promoted Red Bull Plane Swap missed the mark in more ways than one. Not only did the swap fail, but the maneuver and resulting aircraft crash irked the FAA, which said it “will investigate Sunday evenings attempted Red Bull Plane Swap in Arizona.” 

The agency also said that on Friday it “denied the organizer’s request for an exemption from Federal regulations that cover the safe operation of an aircraft.”  In the planned swap, which was live streamed on Hulu, pilots and skydivers Luke Aikins and Andy Farrington were scheduled to fly two Cessna 182s to an altitude more than 12,000 feet above the Arizona desert, put the aircraft into steep dives, jump out, and maneuver in freefall in order to enter each other’s airplane. They would then recover from the dive and land. 

Both men were wearing parachutes.

The aircraft were modified with a range of equipment including aerodynamic brakes to keep them from gaining excessive speed in the near-vertical dive, and grab bars to help Aikins and Farrington get back into the airplanes during the plunge. The 182s each included a custom autopilot designed to maintain an unusually steep descent path.

Shortly after the 182s began their dive together, side by side, the airplane that Farrington was supposed to recover entered a spin, making it impossible for him to gain entry. Aikins successfully completed his half of the swap and landed the airplane safely. Farrington had to deploy his parachute. The 182 he was supposed to get into impacted the ground in a near vertical orientation in the desert. Officials reported no injuries.

It is unclear what caused one of the 182s to spin out of control. It is also unclear exactly where the accident aircraft—which reportedly was fitted with a Cirrus-style airframe parachute—wound up.   I wonder if they will try this again!!!!

Not too long ago I walked over to the Rotorplex field and saw that a couple of guys were getting ready to fly their drones.  I had asked if they were club member and they both said no.  I asked if they had AMA and one of them said yes.  I asked to see it and he then told me he had a pdf of the AMA card.  I said ok but I need to see it.  His next response to me was, what is AMA.  At that point I knew he did not have one.  What he did have was TRUST.  But we all know that is not enough to fly at our site.  I told them that if he did have AMA, I would allow them to fly as a guest.   Get your AMA and join the club then you can fly as often as you like, but since they did not have AMA, I told them that they could not fly.   They did pack they drones and stuck around for while to watch our T-28 races.  Steve Neu will have more on that in this newsletter.

Speaking of the T-28 races, Larry Kosta Jr was ready for his heat, so he took off and right away he was banking to the left, over the pit and what he did was hit my truck and did some major damage to the truck as you can see in the photos….Ok, I lied about the  major damage, but he’s got some polishing to on the shell and the bed of my truck to do……lol.

I hope club members have been following along my build of the DC-3 these past few articles and been enjoying the build as much as I have.  I would like to let you know that if you come out this Saturday to our club meeting I will be bring the fuselage for all to see the model.  The next few mouths the wing will be built and I’m not sure how much time I will be building on, since I just got a new job working for Collins Aerospace which begins this coming June 6th.   In the time I will have, I will be building up the wing.  

Thank you all and I look forward to seeing you all out at the field!

President’s Corner for May – June 2022

First, there’s something different about this issue of Peak Charge. Scroll back to the top and look again. See it? Yes Ladies and Gentleman, SEFSD has a new logo! The original logo was designed by old friend Brian Chan (of SF Bay area) around 1991 when the club was founded.  For the refresh, we have Larry Kosta and his professional graphic designers to thank. The board did participate in the design, giving stick and rudder to multiple draft versions before settling on this one. So you like it? Want it on a shirt? A hat? A hoodie sweatshirt? It’s all going to be possible. Larry not only has graphic designer connections but embroider connections. Standby for a Website that will have sizes, colors and types of a lot of different garments for your choice of custom order. For the record, the club is not making money off the logo apparel (for now anyway), instead we’re passing on the embroiders best price to you, to encourage taking the plunge!

I want to offer public congratulations to Alex Sutton whom recently soloed in a full scale glider. Not content to just  beat us up in Electroglide, Alex now takes to the skies in full scale gliders where I’m sure his competitive spirit will prevail. Proud papa Frank graced us with the pictures of the milestone event. Just don’t forget us down here on the ground Alex, we still like to chase you around in our T-28s…uh I mean with our T-28s! 

As of now, next years’ banquet is still up in the air! At the last members meeting, a straw poll preferred returning to the Aerospace Museum vs Phils BBQ Event Center. Please realize that last year’s largesse was the result of having 2 years worth of funding which is of course not available this year. Like everyone else, we have to live within our means. Right now, we’re trying to work prices and adjust buy-in costs so the Aerospace Museum is possible. Standby for more info. The 2nd event to watch out for is our annual 4th of July bash and raffle to be held on the 2nd of July (less traffic). In the past, the raffle has been unsuccessful as a Banquet fundraiser and with night flying no longer allowed…well just stand by for more on that.

Lastly, the week of June 5th has (2) unusual weekday events. Monday the 6th, the field will be closed for Hotliner/F-5B practice from 12:45 to maybe 5:00 P.M. and Friday June 10th,  in the A.M. the field will also nominally be closed for a local UCSD student competition. The latter should be some interesting spectating and we could use a few more proctors to assure everything is accomplished safely.

Steve M.

Jovi’s DC-3 Build Project: Chapter 3, Building the Lower Section of the Fuselage

Now that I have completed the top section it is time to move to building up the lower section of the fuselage.  In this process we will also be making a change to the build.  That is moving the servos back to the original position (behind F5 to F7) which was just over the wing, where I had made the hatch for the access to the battery.  You can see that in the drawing.

Ok, let’s get started in building the bottom section.  The first thing I did was to install the formers into place, making sure all were 90 degrees from the top stringers which were pinned down to the board when building the top section. The wing saddles were also installed at this time too.

At the same time, I installed the push rods guide tube into place.  I installed the servos and worked on the push rods to the correct length.  Once that was completed, I placed the tail wheel support plate in place for a dry fit and made sure that I did have the correct length. As always it was perfect. 

To make sure that it was correct, I connected the servos to my receiver and made sure the control arms were center.  I then completed the rudder and glued in the rudder block to the control rod and again made sure that all was center so I would not have to do it at a later time.   The elevator was done the same way, but I have not glued it yet into position.  If adjustments need to be made, I can do that on the radio.

DC-3 Fact:

The one and only DC-1 served a full career with TWA, then was sold to Howard Hughes.  Hughes sold the airplane to the Spanish government, but the DC-1 met its demise after an engine failure during takeoff in the 1940.   (Guess they didn’t read the “Engine Out” section in the manual)

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Design-Build-Fly Competition Report for 2022

By Steve Manganelli

The 26th annual (and first Post-Covid) American Institute of Aeronautics and Astronautics (AIAA) Design Build Fly (DBF) Competition took place April 21st through 24th at Cessna Aircraft’s Wichita KS facility. Ninety-seven teams of Undergraduate Aerospace Engineering Students including teams from San Diego State University (SDSU) and University of California San Diego participated. Myself and Safety Officer Steve Neu have been mentoring the SDSU team since announcement of the rules in early September of last year. Unique about DBF is the rules change every year so there is no way to iterate on your success (or failure). This year’s challenge was to design and build an electric powered R/C model to carry giant syringes and ½ pound chunks of wood 4X4s representing vaccine vials. A further challenge was the vials contained orthogonal 25G shock sensors and had to be deployed on the ground (in a defined area) without tripping a sensor. The deployment had to be after landing from about a 60 second flight which had to takeoff in less than 25 feet! The rules contained a scoring formula that rewarded large numbers of vaccine vials and syringes.

Early in the design stage, we flew the shock sensors in miscellaneous R/C aircraft in order to ascertain 1), if a high G turn would trip a sensor and 2), how many takeoffs, course completions, landings and deployments could be accomplished in the 10 minute allowed window. After a couple of flights, we surmised that If everything went well, (8) ½ pound vial bricks could be deployed in the 10 minutes and all but the tightest turns and the worst dork landings would be under the 5 G limit. The 5G s became moot anyway as the organizers later change the shock sensor to 25 Gs.  The rules specified a minimum of (10) syringes per vial brick, thus 4 pounds of 4 X 4s and 80 syringes became our target design payload. The students then used some simple rules of thumb (cargo weight = everything else weight) to define the required wing area. They chose a low aspect ratio constant chord wing with a tried and true epoxy-carbon tow and vertical grain balsa “I-beam” spar within their foam core wing. The wing was then faced with lightweight fiberglass using the foam cradles as a female mold.

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Horizon Hobby – Great Service!

George Sullivan Writes:

 I had a very good experience with Horizon Hobbies this week. I contacted them because I was looking for a part for the nose gear on my F16. The part was not available to purchase separately from the nose gear. Horizon volunteered to mail me the part free of charge. Great customer service!

Music Video Featuring Otto’s Flyguys + Flying tampon

A couple months ago I was contacted by Atlantic Records asking me to build and fly a couple characters in a music video. Joined by Mike Frandsen, Bob Simon and Dave Encinas we pulled it off.
Otto

Otto with the singers.

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I was contacted by an ad agency that wanted to know if I could build a 50 foot flying Tampon. Playtex has just released a 100% bio degradable Tampon. I told them I’d need to build a prototype to determine the feasibility and issues. They provided some money and the prototype flew well enough. I submitted a quote that went through many puts and takes but in the end it was too costly for their budget.

Otto