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Monday, November 14, 2016
Repairs and Reconditioning
Monday, November 7, 2016
Back in the Air ... Flight 938
When I got home, I lowered the front of the seat and fixed the wing. I'm farther forward in this configuration. My knees are more bent and it might have changed the balance so that the front wheel is lower than I like. I don't think it is likely to wheelbarrow but I'm going to have be careful. A nose wheel landing isn't a disaster but it would be tricky.
Tuesday, March 2, 2010
Bill & Joe's Excellent Adventure Day 5
The large triple sheave block went flying to port and we were lucky not to be sitting at the helm or one was could have been injured. Bill jumped up and grabbed the block and secured the main keeping it from getting caught up in the stays.
After rummaging through all the hardware we could find and scratching and thinking, Bill came up with a working fix.
There were two heavy duty eyepads used to lift the hull during transport located 12 inches on either side of the traveler track. Using the spinnaker sheet, the old main sheet, and several large single blocks we fashioned a way to trim the main that also served as a vang and preventer when going downwind. It added a couple of steps while tacking but it worked perfectly. Another triumph for the dynamic duo!
Saturday, January 30, 2010
Day #4 Friday #379 #380 #381 #382
Home Sweet Home HAD SOMEBODY HAD STOLEN MY TOOL BAG ? !
I searched out a pop can and we cut a rectangular strip that would go around the shaft and bush the collar. In twenty minutes John and Ron had repaired my ride. I re-tensioned the belt took it out to the field for a test. It’s all good.
Pulley bites prop
For the next several flights I checked the bolts on the lower pulley and each time, I got slightly less turn. This was also true of the prop bolts. It is also important to check the collar and confirm there is a gap between the pulley and the shaft…this also goes for the GSC hub. Next time I visit Vince I'll ask him to re-secure the pulley using a copper bushing.


Back at the LZ I spoke with a fellow triker who commented that I was losing the A's to soon, I agreed and he suggested that I lower the line guides on the cage so that they would be closer to my hands. Later flights proved him right. (I never got your name, but thanks!) I also learned that with a bigger cage it’s important to experiment with different ways to hold the A lines during inflation, Today I learned that I can grasp the lines way past the mallons and then slide back to them as the wing inflates.
That evening I shared a wolf camp dinner of frozen chicken and Italian sausage wrapped in Italian flat bread. (Of course I didn’t eat the chicken!) When we heard the fireworks going off we killed the campfire and wandered down to the beach for the bonfire and prop burning.

Bob Armond leads evening prayer service
Bob Armond was in rare form and it was a joy to watch him in action. With all the passion of a traveling preacher he exorcised the demons of poor judgement from we humble and unworthy pilots. Jim King introduced a gent who had just soloed and everybody cheered his achievement.
Friday, October 2, 2009
No fly Day
Thursday, September 24, 2009
Tachometers and Rain
Tachometer
I've been having trouble with the SenDec Max Tack ever since I remounted it on the forward tube next to my GPS. It would read half or two thirds of what I knew the motor to be turning. After trying three different gauges of wire and getting bad advise from the manufacturer, I stopped at the local hardware store where a good ol boy listened to my problem. He suggested that I use a heaver gauge of wire and try to avoid running it anywhere near a ground source. Bingo! It's reading true and the heaver gauge of wire is mounting in the receiver on the tach more snugly.
The last thing is get the thrust up. Chad is bringing a set of 62 inch IVO's and a set of GSC's for me to try at the Monument Valley Gathering.
Sunday, September 20, 2009
#358 Chatfield Marek breaks a Prop
I moved the hang point rings to a horizontal position attempting to lesson the friction on the trim tab. No Joy...the problem is in the webbing that acts as a back-up in case the ring brakes loose from the bullet bar. I've replaced the heavy webbing with a slightly lighter and longer one which will hang loose over the risers and hopefully I'll be able to use the trim tabs. If I end up hanging from the reserve or the H.P. ring brakes, the hangpoint will spread about two inches but I don't think it will adversely affect how the buggy hangs or the how wing flys. The next flight will tell allot.
The wing came up crooked again but, like yesterday, it stabilized quickly. I think I'm not lining up square with the wind. I did notice that when I went from idle to full power the front wheel would dip about 6 inches and return to about 3 inches below the starting position. I expect that it will be even more pronounced when I am able to use the trimmers. I'll move the H.P. Rings forward 3/8ths and see if It helps with the wheelbarrow effect.
The incident of the evening came as we were returning to the field. Marek's hero camera came off it's mount on top of the cage and went through the prop. He landed without issues in the LZ but was a long walk from the car. I knew something was wrong so I landed by the truck and walked out to meet him. We wandered around the field finding parts of the prop and eventually found the camera. Up on top is probably a good position for the camera but the vibration was working the mounting bolts loose...some lock tight would help if it does not have to be changed after every flight. I hope Marek got video all the way back to earth but I'm betting it stopped when it got whacked by the prop.
Wednesday, September 9, 2009
Pre-Flight
Question for Terry
Motor is mounted to the frame with two bolts. There are two other spaces available, is this as you want it?.
IVO Prop is "flexing" about 1 1/2" at Idle. Chad has used a GSC (?) adjustable and likes it.
Terry is looking into the Warp Drive Prop. Maybe at MV I'll get the chance to try a different prop.
Tightened up the Reserve Harness. it was getting sloppy.
Monday, August 17, 2009
No fly day
Last Wednesday at Simms when we stood around and watched the grass blow and today when I discovered that two of the trike tires were flat. I picked up some new tubes and after much cussing and found that bicycle tire irons were not going to work getting the tires mounted. So... I stopped at the local tire shop and they were more than happy to do it for 6 bucks a wheel. The tech over inflated them but that was no problem, I'd set the tire pressure when I put them on the trike. Later that afternoon at work we heard a loud bang and one of the guys in the shop saw a black saucer shaped object fly past the second floor window. I'd left the tires stacked in the bed of the truck. Apparently they were inflated correctly for the tire (60lbs.) but the wheels were only rated to 2 bars (about 28 LBS.) The bottom tire had blown after heating up in the truck, and when the bead broke it threw the wheel on top across the parking lot. 
Luckily, nobody was injured but I had to go back to little wheels where I learned how to mount my own tires. It's not tools...it's leverage and technique
Sunday, May 17, 2009
Strobes and Throttle Leash

Wednesday, May 6, 2009
274 Simms


Sunday, March 15, 2009
Rigging the Reserve Harness

Friday, February 27, 2009
Dialing in the Thumper
First I set up the foot steering with all new webbing.



Wednesday, February 25, 2009
No Fly Day...

Friday, February 20, 2009
Cage Netting
Critics

During the Salton Sea and at the Flying Circus there were plenty of opportunities to stand around the Thumper Bullet and critique the design.Whenever the topic of cage netting came up I was surprised when the first thing said was, "Your going to lose thrust!" or "Its a trike you don't need it." These comments came from respected pilots.So...How much thrust can it lose?Especially when your not as concerned about keeping hands out of the prop as that rare time when the wing does the unexpected and a line falls near the prop.The thumper cage is new and twice pilots hooked a line at the Salton Sea. PLUS...a four stroke doesn't shut down as fast as a two stroke so there are going to be a couple of revolutions after you hit the kill switch.
I'm not talking about some of the "hammock netting" I saw stretched over the cages of brand new quads.I've posted pictures of a minimal net meant to protect from Line Strike. Zip ties make it easy to get the lines tight as a tennis racket and 300 pound deep sea braid is thin and easy to tie.
Thursday, February 19, 2009
Tweaking the Thumper
A assist with rope ratchet
--- On Wed, 2/18/09, jo3jo2003
Terry Chad,
I've been dialing in the "Colorado Bullet Thumper 4stroke".Epoxy Gel and a new longer split fuel hose anchored the motor end of the throttle cable. It was moving around and preventing a true idle.The engine is max at 3800RPMidle at 1800RPMI can probably Pitch the IVOs more...BUT?Chad...how far can you pitch the IVO blades and how do you know when to stop?Can you "over warp" them and damage the system?Maybe I should learn how to measure the pitch just for the "pure research" as you put it Terry.I was glad to read about "belt Flop" on the slack side of the drive system. I've noticed some flop and wanted to ask how to determine correct belt tension. If I understood you right what I'm seeing is about normal.Last...Terry ....what do you think? The local Briggs & Stratton guys say I can install the high altitude carb kit in 15 minutes or less. I'm going to be launching from 8200+ MSL a few times this summer and the rest of the time will be at 5300 MSL. I'm thinking that it might be a good if I used Hi Alt jets here in Denver and the mountains and switched to the stock jets for the coastal stuff. These guys are willing to show me how to install and adjust them for the price of the labor Don't worry....Before I start changing anything I'll see how it does at the home field. But I wanted to run it by you.It's just too damn cold and the best I can do is tweak the machine.
JoeO
Hi Joe, I was thinking of you today.
I think 3800rpm is fine.
Belt 'flop' on the slack side is normal, but I find it's best not to watch it;); BTW, I have never lost a belt or even had the belt jump a groove. Belt tension is not something you need to worry too much about..tension it about like you would your underhood car belt. If the belt 'flops too much to suit you, tighten it a little more, you won't hurt anything (however it's probably just fine right where it's set now)
I don't know about hi elevation carb kit, but I am curious about it..I wonder what the kit includes? Smaller jets? Different air filter?
One thing that might help is to remove all the filters from the intake shell. Please let me know what you learn about the kit.
It's cold here too; I delivered a new unit to Indianapolis on Sunday and I demo'd it for the buyer; a 5 minute flight was plenty for me.
Terry
Thursday, January 1, 2009
#233 #234 #235 Marana AZ

Monday, December 29, 2008
Tucson #230 #231 Wheeley Casters
Marana LZ
Higher winds gave me the excuse to try out the wheeley casters. I put the trimmers out and the wing came up quickly without pulling me back. It probably also helped that the surface was hard and smooth. One thing I noticed from viewing the video was that the left wheel lifted before the front.. I never felt like I was in danger of rolling but it is something to be aware of and possibly corrected before launching with the trimmers out. At the least I should hang the tool bag back on the left side. So while I wasn't able to see how the casters worked on launch I did get the impression that they were touching during the run out. On landing I felt them again but no problem.
First flight was about 30 minutes, I stayed in the general vicinity of the LZ and tried to get the feel of the area. Mostly farm flying but to the west there is a river that goes north. Scott Nicoles took that route and I wish I had gone with him. I was not able to be there when he returned because Mike Levine and I had to get back for dinner with the whole family.
The second flight was a quickie, I had to abort the first launch because the left brake line was twisted and I could feel the pulley wasn't rolling free....landing was sweet with the motor off...I flared at the last second and bled off the energy at just a couple of inches AGL.
Thursday, December 11, 2008
#229 Rowdy Air Shortens Flight Simms
this afternoon looked beautiful. Even if the field was going little wet I thought it worth going out there to see if I had a shot at flying. I arrived at 3 (1 1/2 hours before sunset). Set-up and launched quickly.
The 3 inches of wet snow slowed the taxi and from the nice way the wing came up and settled overhead ...It got me thinking that I'm a little heavy on the throttle and should practice short bursts of power to keep the speed down before committing to take-off.
Within seconds of leaving the ground I flew into some very powerful lift. and it was also clear that there was a strong breeze just above the surface. I decided to get down immediately, the only problem was that if I was going to land upwind and still be by the truck I would have to do some tricky flying. What I would have to do is fly clockwise around the trees and turn for final with enough room to avoid the wires. With all the bumps and mixing air I opted to come in fast and land downwind. There was almost no wind at the surface and even though I was technically downwind I was able to keep the wing up and taxi for over 150 feet back to the truck. Good thing too because the mud was sticky thick and I was wearing 2 inches of mud on the bottom of my boots by the time I loaded the rig back into the truck.
I think if I'd waited 30 minutes longer to launch it would have been allot better. I thought about it but decided not to because of the mud. I also wish I had launched a pilot balloon... even after landing it would have been instructive. I hope to remember this the next time the opportunity presents itself.
Before leaving the house I did change the jet to 155 and the motor started better and was more responsive. It even sounded better...deeper...more throaty.
Sunday, December 7, 2008
#228 Simms

I'm thinking that the motor is running lean.
Still hard to start...
Didn't burn much gas...
Throttle is not as responsive ...
it's not lagging just seems a little slow...
I've been flying a 150 jet all through the summer and fall at this altitude and higher...
The air is a little cooler but not as cool a it was this spring (during the AM flights). I'll change to the 155 if I fly again before leaving to Tucson.

Nice flight ,Nill wind on the surface but mixing at 600 feet. Tracy the RC pilot who is considering getting into PPG was at the field. He took some shots and I hope he has something good enough that he will send me a copy. I pretty much stayed over the field and practiced a few touch and go s. I really like flying the 24 m it comes up easier and because it is loaded heaver its firm and seems more stable I going to consider selling the 26 m and trading for a 24. Marek wanted to have me try the velvet 23 but I declined. Chicken I guess. But I really should see how the smaller wing feels.

