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Search: Posts Made By: BJohnson
Forum: Trip Write-ups 03-01-2020, 10:19 AM
Replies: 18
Views: 3,032
Posted By BJohnson
Awesome trip

Love the time lapse dual screen format and the slowdowns for the cool shots. Have a great trip!
Forum: RV General Discussion/News 02-25-2020, 11:16 PM
Replies: 21
Views: 3,643
Posted By BJohnson
Looks good!

You must have meant 25 inHg vacuum. You would need an autoclave to get to 25psi.;)

Do you have a preferred source for the non-crimped-fabric you were using?
Forum: RV-14 02-23-2020, 01:49 PM
Replies: 33
Views: 9,254
Posted By BJohnson
The best plexiglass bit

Meant for composites, and spendy, but these will drill perfect plexiglass holes in -10F conditions with heavy pressure. Of course, donít actually do that, but the design of the bit is that forgiving...
Forum: ADS-B 11-11-2019, 12:55 PM
Replies: 80
Views: 18,806
Posted By BJohnson
GPS antenna under the cowl

For those of you that have mounted your GPS antenna under the cowling on a shelf next to other antennas, have you gone back months later and checked the performance and are you still getting...
Forum: RV General Discussion/News 09-05-2019, 10:49 PM
Replies: 65
Views: 9,304
Posted By BJohnson
Two biggest concerns with RV designs

I have two main concerns over the RV engineering.

First is the location of the fuel tanks which can easily impact a post or tree and rupture during an off field landing. Other designs put the tank...
Forum: RV-10 08-26-2019, 11:09 PM
Replies: 61
Views: 13,484
Posted By BJohnson
Poor bond prep

A good bond failure is a cohesive failure where the bonding agent fails leaving material on both components. This would also be the case with a poorly mixed adhesive resulting in poor strength. This...
Forum: RV-12/RV-12iS 08-22-2019, 12:53 PM
Replies: 8
Views: 1,405
Posted By BJohnson
Mineral Spirits

I used mineral spirits to clean adhesive residue off the canopy with good results. It does not attack the plexiglass.

Other options from the chart below are isopropyl alcohol or even gasoline. ...
Forum: Reviews 08-05-2019, 10:53 PM
Replies: 20
Views: 3,451
Posted By BJohnson
Interesting video of a Cirrus crash and Inreach tracker

I use the basic Spot3, but the look on this guys face when the text came in that search and rescue was on its way has me rethinking the texting options.

https://youtu.be/pSiTpHNq-IA
Forum: RV General Discussion/News 08-05-2019, 10:39 PM
Replies: 10
Views: 1,986
Posted By BJohnson
Is this the switch?

I like the idea of changing the switch. Is this the one you are referring to? https://www.steinair.com/product/locking-toggle-switch-dpdt-ononon/

How do they lock? Does it require a pull prior to...
Forum: RV General Discussion/News 08-04-2019, 09:43 PM
Replies: 10
Views: 1,986
Posted By BJohnson
Total Electrical Failure on First Leg to Oshkosh - self induced

I was at altitude settled into cruise for the 4 hr leg from Auburn WA to Logan UT to pick up my son from school, and talking to Chinook Approach for flight following. About an hour into the flight,...
Forum: RV General Discussion/News 07-21-2019, 03:28 PM
Replies: 26
Views: 6,485
Posted By BJohnson
Arrived Friday

We arrived Friday also. Left Seattle Thursday night and flew to Logan UT non stop on 25 gallons to pick up my son. This plane still amazes me with its efficiency. The next morning we left Logan...
Forum: RV General Discussion/News 07-12-2019, 07:32 PM
Replies: 88
Views: 13,509
Posted By BJohnson
Agreed

I will bail out and go around rather than pass, but why would he mention passing twice in the webinar. It sends a mixed message.
Forum: RV General Discussion/News 07-11-2019, 10:42 PM
Replies: 88
Views: 13,509
Posted By BJohnson
Passing slow aircraft

I listened to the EAA webinar and twice Fred Stadler suggested passing slow aircraft on the right if there was room in front. But the Notam says no passing? Did anyone else catch that?
Forum: Midwest 01-28-2019, 07:08 PM
Replies: 3
Views: 591
Posted By BJohnson
Thank You

Dick, Thanks for the offer! I will email you to follow up. I actually stopped in Faribault both ways the last time I flew to Oshkosh. It was a very nice airport and a great stopping place to fuel...
Forum: Propellers 01-27-2019, 12:25 AM
Replies: 71
Views: 16,582
Posted By BJohnson
Paint crack only?

Can you tell if this is in the paint or surface filler only, or do you see broken fibers? From the photos it looks more like the paint has cracked than any failure of the composite. Can you chip...
Forum: Midwest 01-27-2019, 12:05 AM
Replies: 3
Views: 591
Posted By BJohnson
Temp hanger space near Minneapolis after Oshkosh

I need to hanger my plane somewhere near Minneapolis for about a week after Oshkosh 2019 so I can drive back home with my family. Any recommendations on good options would be appreciated.
Forum: Safety 01-13-2019, 09:06 PM
Replies: 80
Views: 11,593
Posted By BJohnson
One last datapoint

Weather cleared and I had another attempt at collecting data at high power and slow speed. I updated the plot below with one other data point at 41 knots. The air was very smooth and I was able to...
Forum: Safety 01-09-2019, 08:53 AM
Replies: 80
Views: 11,593
Posted By BJohnson
RV-9A

I found that with the RV-9A, there is a very small range of airspeed where the power increase is substantial to fly on the backside of the curve. I was expecting a much larger airspeed region where...
Forum: Safety 01-09-2019, 08:41 AM
Replies: 80
Views: 11,593
Posted By BJohnson
Sure

Scott, each data point is a constant IAS glide test where the sink rate is measured. Several data points were collected during a single glide by varying the airspeed and holding. As Snopercod...
Forum: Safety 01-05-2019, 10:51 PM
Replies: 80
Views: 11,593
Posted By BJohnson
Found the backside

Tested again today, but the winds were a bit gusty and flying at high power and high AOA takes some practice. The best I got at near zero sink was the new data point at 40 knots shown in the plot...
Forum: Safety 01-03-2019, 07:31 AM
Replies: 80
Views: 11,593
Posted By BJohnson
I was thinking the same thing. Itís going to be...

I was thinking the same thing. Itís going to be a bit tricky maintaining zero sink at the edge of stall with full flaps.

Does anyone have experience with power on stalls with full flaps? I imagine...
Forum: Safety 01-01-2019, 04:59 PM
Replies: 80
Views: 11,593
Posted By BJohnson
Well - I was not expecting this!

Just got back from flight testing on a perfectly still air day in the PNW. I got the same flat power curve that has been shown for the other aircraft.
1560 lbs, 40°F OAT, IO-320, FP Sensenich GA,...
Forum: Safety 01-01-2019, 01:51 PM
Replies: 80
Views: 11,593
Posted By BJohnson
Nice landing Snopercod!

As I mentioned, I am guessing that the Lancair does not have high enough lift in the wing to fly on the backside of the power curve, which is what I think is at the root of the discussion. It...
Forum: Safety 12-31-2018, 11:14 PM
Replies: 80
Views: 11,593
Posted By BJohnson
Other interesting bits from the Van's article

Interesting and thought provoking discussion. The OP's primary point is that Power is Thrust times velocity (N m/s) is worth noting. It will flatten the plot but does not eliminate the existence of...
Forum: Engine Monitors 12-20-2018, 12:32 PM
Replies: 11
Views: 1,384
Posted By BJohnson
Thermocouples

There is no ground. Polarity is critical though. Each wire is a different alloy and the connecting wires must match to each other and both connect back to the instrument/EMS. Each point where...
Forum: RV-9/9A 11-20-2018, 11:04 PM
Replies: 397
Views: 394,197
Posted By BJohnson
Back from the Upper Valley Aviation paint shop

After a day of assembly, rolled Juliette out of the paint shop in Chilliwack, BC on a crystal clear November day to bring her back home! After not having her for several months it is time to go...
Forum: RV Building Tips/Techniques 09-01-2018, 10:17 AM
Replies: 5
Views: 982
Posted By BJohnson
How did you finish the edges

David, thanks for response. Did you fair the cowling so the edge of the scoop was flush to the cowling similar to the oil door?
Forum: RV Building Tips/Techniques 08-31-2018, 01:56 PM
Replies: 5
Views: 982
Posted By BJohnson
Fitting O-360 scoop on a O-320 cowling

During the initial build I modified my O-320 cowling in the scoop area and the FAB box fiberglass to fit within the existing cowling. Later I learned that I should have bought the O-360 cowling, but...
Forum: Northwest 07-12-2018, 11:25 PM
Replies: 1
Views: 2,459
Posted By BJohnson
Summit flyby video, almost

Here's a short video of our Mt Rainier flyby at 11,500ft, 3000 ft lower than the summit, but tucked in close to see the glaciers. It was another beautiful day in the PNW. ...
Forum: RV Ongoing Maintenance Issues 05-20-2018, 07:26 PM
Replies: 11
Views: 3,500
Posted By BJohnson
Improper break in?

I have been reading many of the other posts on brakes - lots of great information.

This is the third set of pads, and the first time I have used Matco pads on my Cleveland brakes. Every two years I...
Forum: RV Ongoing Maintenance Issues 05-18-2018, 10:46 AM
Replies: 11
Views: 3,500
Posted By BJohnson
This might be a factor

I did not fully disassemble the brake calipers when I noticed the leaks. I loosened the two bolts and adjusted the outer plate, which appeared to have bound on the pins. It is possible that fluid...
Forum: RV Ongoing Maintenance Issues 05-17-2018, 10:54 PM
Replies: 11
Views: 3,500
Posted By BJohnson
Overheated brakes

I just replaced the brake pads with a set from Vans on my Cleveland brakes about a month ago. I have about 8 landings on them. The other day I landed a bit fast and used moderate braking to stop. ...
Forum: My RV Build Project 02-26-2018, 01:59 PM
Replies: 4
Views: 2,891
Posted By BJohnson
just in time for spring!

Looks like you are just about there. You are going to love that plane for sure.

Go Rebels!
Forum: COMM 01-29-2018, 10:54 PM
Replies: 4
Views: 710
Posted By BJohnson
Works for a 496

I use my 496 to push frequencies to the Icom all the time. Select the airport, the frequency, hit enter and it goes into the backup frequency of the icom 210
Forum: Virtual Hangar 01-03-2018, 10:17 AM
Replies: 219
Views: 105,276
Posted By BJohnson
Awesome!

Way to go. It is a daily battle to live a healthy lifestyle. The race sounds like a grueling affair. I would say enjoy, but survive seems more appropriate.
Forum: RV General Discussion/News 09-17-2017, 09:15 PM
Replies: 48
Views: 12,798
Posted By BJohnson
Heat 3a

Relentless pulled up at the start near the first pylon and quickly landed on runway 14. It was too far away to see anything.
Forum: Fuel Injection Systems 09-03-2017, 11:33 PM
Replies: 5
Views: 2,574
Posted By BJohnson
Annually

I check it at each annual. I pull the pump and filter from the plane. Then remove the safety wire from the one end. The whole filter body can then be unscrewed from the fitting still attached to the...
Forum: RV General Discussion/News 08-21-2017, 08:40 PM
Replies: 33
Views: 7,861
Posted By BJohnson
Unforgettable

We launched out of Auburn and headed south for the Oregon coast. Weather was perfect, winds aloft were variable with smooth air. Center was refusing VFR flight following due to the shear number of...
Forum: RV-12/RV-12iS 08-06-2017, 09:50 AM
Replies: 39
Views: 6,440
Posted By BJohnson
Really?

Origionally didn't you just want Vans to review their data for a possible error? Now you want to audit all their flight test data and methods? I can see the FAA asking that of a certified aircraft...
Forum: Traditional Aircraft Engines 07-11-2017, 11:44 PM
Replies: 11
Views: 1,875
Posted By BJohnson
Great tips

Thanks for all the help. It seems like either fuel quality or the injector system/spider/nozzles. I called Precision Airmotive and they were very helpful with insights and information. Looks like I...
Forum: Traditional Aircraft Engines 07-10-2017, 10:15 PM
Replies: 11
Views: 1,875
Posted By BJohnson
More info

The engine has 260hrs since new. The OAT was below 80 in both cases. The odd behaving cylinder was different in both cases. Would that happen with sticky valves?

I do have an alt air door slightly...
Forum: Traditional Aircraft Engines 07-10-2017, 07:26 PM
Replies: 11
Views: 1,875
Posted By BJohnson
It was rich

All EGTs were below 1200F. I typically do this to keep CHTs in check during climbing, but probably don't need full rich. Would that cause a momentary rpm drop?
Forum: Traditional Aircraft Engines 07-10-2017, 01:06 PM
Replies: 11
Views: 1,875
Posted By BJohnson
Momentary RPM drop at climb power

What would cause a momentary loss of power at 85% power about 5 minutes after takeoff on a IO 320 using a Silverhawk fuel injection system? I was step climbing to clear Class B floors around Seattle...
Forum: RV General Discussion/News 03-26-2017, 11:41 PM
Replies: 758
Views: 500,932
Posted By BJohnson
Beautiful niner

Nice picture. I'm jealous of your paint job every time I see it at S50. I didn't paint before flying, and now I don't want to stop flying to paint.
Forum: RV-7/7A 03-18-2017, 11:20 AM
Replies: 28
Views: 8,355
Posted By BJohnson
One scenario

If the bolt sheared, the leg can rotate causing the sideways loading.

As to the gear's durability, doesn't Vlad fly the stock nose gear without any aftermarket bits? If so, given where he has gone...
Forum: Rocket 12-22-2016, 08:55 AM
Replies: 37
Views: 8,771
Posted By BJohnson
One suggestion

This is a bad assumption. Statically indeterminant does not mean that it carries no load. The loads are shared based on their stiffness. Taking load off the bolts with the cross bar is a good thing,...
Forum: RV General Discussion/News 11-11-2016, 12:50 PM
Replies: 45
Views: 9,542
Posted By BJohnson
Brake Fluid

I distinctly remember entering the hanger the day after bleeding my brakes, it was a little messy, and the smell of the brake fluid. For the first time, it smelled like a real, functional airplane.
Forum: RV-9/9A 10-17-2016, 11:19 PM
Replies: 31
Views: 11,372
Posted By BJohnson
Simple

I did this for one bracket on my 9A. Adjust the hole position relative to the rod end bearing bolt hole and drill the first hole, raise or lower the hole by the desired amount. Then use the original...
Forum: RV General Discussion/News 07-19-2016, 11:43 PM
Replies: 2
Views: 850
Posted By BJohnson
V2 is an alternative

I like a track closer to V2, then over stampede pass and into Auburn. If the overcast is high enough you can get through stampede pass. I little lower clouds and the hair pin turn around snoqualmie...
Forum: RV General Discussion/News 07-19-2016, 08:01 PM
Replies: 9
Views: 1,843
Posted By BJohnson
Aberdeen, SD

For the past two years, I have stopped at Aberdeen SD. Friendly FBO. No issues with hotel reservations on the spot, and the FBO dropped us off and picked us up the next morning. Plenty of food...
Forum: RV General Discussion/News 06-07-2016, 11:32 PM
Replies: 3
Views: 1,854
Posted By BJohnson
Congrats to Brian

Great accomplishment for Brian. He has helped build the plane he solo'd in, as well as two other 12's. This is a great opportunity for these students!
Forum: RV General Discussion/News 05-09-2016, 08:44 PM
Replies: 310
Views: 111,700
Posted By BJohnson
Ironic

That in an EAB environment, where we are blessed with minimal regulatory oversight, that we wistfully look at other highly regulated industries for their efficiency in notification of issues of...
Forum: RV General Discussion/News 03-01-2016, 12:35 PM
Replies: 7
Views: 2,013
Posted By BJohnson
The best part about Kevlar

If you don't like how things turn out, you can easily lift and edge and peel it off since nothing really sticks well to it. It makes a great, but pricey, peel ply.
Forum: RV General Discussion/News 01-12-2016, 07:23 PM
Replies: 40
Views: 13,422
Posted By BJohnson
Inspirational! Where's the tail hook?

Inspirational! Where's the tail hook?
Forum: RV-9/9A 11-20-2015, 07:37 PM
Replies: 7
Views: 1,594
Posted By BJohnson
One amazing aircraft!

This aircraft always amazes me whenever I fly it. Keep those completions coming. Looks like this was serial number 90084? That's perseverance.
Forum: RV Ongoing Maintenance Issues 07-08-2015, 10:41 PM
Replies: 14
Views: 4,434
Posted By BJohnson
Ran some tests today

I got a chance to swing by the hanger to run some tests. None of the wires are loose. I checked them before starting the plane, and during run up when just on the left mag, with no change.

I...
Forum: RV Ongoing Maintenance Issues 07-07-2015, 12:09 PM
Replies: 14
Views: 4,434
Posted By BJohnson
Good ideas

Thanks for the replies. I will try and get to the airport tonight to tests these ideas. I used to rent from a flying club that required a brief mag off check following a lean idle run to clear the...
Forum: RV Ongoing Maintenance Issues 07-06-2015, 08:37 PM
Replies: 14
Views: 4,434
Posted By BJohnson
No rpm drop on left mag - the first time

What would cause the left mag rpm not to drop from the "Both" rpm until switching back to "Both" and then to the left mag again? With the second selection, the rpm drop for the left mag is back to...
Forum: RV Ongoing Maintenance Issues 03-15-2015, 10:11 PM
Replies: 74
Views: 28,408
Posted By BJohnson
[QUOTE=crabandy;967278]B http://i1137.photobucket...

[QUOTE=crabandy;967278]B

http://i1137.photobucket.com/albums/n516/crabandy/airplane/2467E040-1CC0-49CB-A65D-5AA3008A9A56_zpsiwweofda.jpg

Here is another photo that does not look right. The text...
Forum: RV Ongoing Maintenance Issues 03-15-2015, 10:07 PM
Replies: 74
Views: 28,408
Posted By BJohnson
Links were not definative

None of the linked information covers what Andy is describing here. It really looks like the wrong flare angle is being used. After tightening the B nut, is should not have "gained a shoulder from...
Forum: RV Ongoing Maintenance Issues 03-13-2015, 08:45 AM
Replies: 74
Views: 28,408
Posted By BJohnson
No root cause yet

If you look closely at the photos, the material is not too thin. What appears to be thin is just the sharp edge of the fracture hiding the rest of that section. But the other side of the fracture...
Forum: RV General Discussion/News 01-27-2015, 09:55 PM
Replies: 12
Views: 4,018
Posted By BJohnson
Looks like the time machine took you to summer

60 degrees in the Seattle in the middle of January might have been another reason the planes were out looking for gas. It was a record breaking day.
Showing results 1 to 62 of 232

 
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