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Search: Posts Made By: tjo
Forum: RV Building Tips/Techniques 07-12-2021, 12:18 PM
Replies: 14
Views: 1,025
Posted By tjo
Always, always, always hold the edge so that it...

Always, always, always hold the edge so that it is at an angle down from the wheel. If it is tilted at an up angle, it will dig into the wheel, the wheel will "grab" it, and if you are lucky, just...
Forum: RV General Discussion/News 06-30-2021, 11:42 AM
Replies: 40
Views: 5,779
Posted By tjo
I always find this an interesting discussion. ...

I always find this an interesting discussion. There are plenty of ways to spend more on a build, regardless of how much you spend. And there are plenty of people that will tell you that you need to...
Forum: Oregon 06-21-2021, 02:16 PM
Replies: 6
Views: 849
Posted By tjo
Yeah, I think the worst is Hoquiam, isn't it? Tim

Yeah, I think the worst is Hoquiam, isn't it?

Tim
Forum: Nosewheel vs. Tailwheel 06-21-2021, 11:07 AM
Replies: 8
Views: 1,784
Posted By tjo
Why would there ever be an advantage to no...

Why would there ever be an advantage to no brakes?!

Tim
Forum: Oregon 06-21-2021, 11:06 AM
Replies: 6
Views: 849
Posted By tjo
and as for coastal weather, well, looks like you...

and as for coastal weather, well, looks like you are from the Puget Sound area, so I assume you know what it can be. Yep, often in the morning there is a 1000ft or less ceiling, but it clears up......
Forum: Oregon 06-21-2021, 10:56 AM
Replies: 6
Views: 849
Posted By tjo
Not sure what info you are looking for, but I...

Not sure what info you are looking for, but I have been there recently and it is a nice place to go. No fuel or other services, but nice airport. I have only stayed for a few hours, so not sure...
Forum: RV-14 06-15-2021, 08:40 AM
Replies: 14
Views: 2,287
Posted By tjo
If it were me, I would replace them. It looks to...

If it were me, I would replace them. It looks to me like the nuts were run down fast with a powered driver maybe, and maybe a couple of times very close together in time. That can create a lot of...
Forum: RV General Discussion/News 06-10-2021, 10:08 AM
Replies: 34
Views: 4,483
Posted By tjo
The only tip I have is to get a dog :) Tim

The only tip I have is to get a dog :)

Tim
Forum: RV-14 06-08-2021, 08:56 PM
Replies: 18
Views: 2,521
Posted By tjo
Yep, I absolutely agree. Two points, though: 1)...

Yep, I absolutely agree. Two points, though:
1) the numbers apply to a 7 as well.
2) Personally I believe the 9 is the best of the bunch, but that's just me

Tim
Forum: RV-14 06-08-2021, 11:51 AM
Replies: 18
Views: 2,521
Posted By tjo
Good choice. I am sure you have already run the...

Good choice. I am sure you have already run the numbers, but if money were no object, the 10 is almost a no-brainer whether there will people in the seats or not. Just keep in mind, in rough...
Forum: RV-9/9A 05-28-2021, 10:38 AM
Replies: 67
Views: 7,745
Posted By tjo
This is a cool idea and probably has a small...

This is a cool idea and probably has a small market, if you are interested. The aero concerns are being discussed at length, but my focus, in order of priority, would be:
1) cooling flow. I don't...
Forum: RV General Discussion/News 05-18-2021, 09:21 AM
Replies: 22
Views: 3,668
Posted By tjo
Rubber isolator compounds are not trivial. To...

Rubber isolator compounds are not trivial. To the OP:
- Durometer will effect the resonant frequency, not the storage or dissipation of energy.
- Tan Delta is a measure of the energy absorbed or...
Forum: RV-9/9A 05-16-2021, 07:36 PM
Replies: 25
Views: 4,410
Posted By tjo
The problem with the Rotax 915 from my...

The problem with the Rotax 915 from my perspective:
- weight and balance
- high cost
- could run mogas, but impractical due to on airport availability (or lack of)
- limited or expensive constant...
Forum: RV General Discussion/News 05-16-2021, 10:58 AM
Replies: 87
Views: 11,851
Posted By tjo
I'm sure it has been said earlier in this thread,...

I'm sure it has been said earlier in this thread, but I will add anyway. 172's are still in production, not because they suck, but rather because they don't. Minivans are also still in production...
Forum: RV-12/RV-12iS 05-14-2021, 04:25 PM
Replies: 11
Views: 2,328
Posted By tjo
Good options here. If it were me (since I don't...

Good options here. If it were me (since I don't like my pop rivet dimpler) I would just get the $90 hand squeezer from Brown tool, a set of dimple dies and a set of flush dies (about $30 each) for a...
Forum: Painting your RV 05-07-2021, 11:00 AM
Replies: 22
Views: 3,404
Posted By tjo
This got me thinking, why not put a star at the...

This got me thinking, why not put a star at the front of those stripes that fits up to the ends of the stripes. I'll post a sketch if I get time....

Tim
Forum: RV Friends Who Have Passed On 03-31-2021, 01:38 PM
Replies: 62
Views: 16,951
Posted By tjo
There was also the Korean plane that hit the sea...

There was also the Korean plane that hit the sea wall in SFO. Not a stall, but if I recall the facts correctly, probably done due to unfamiliarity with and fear of the edge of the envelope and stick...
Forum: RV-7/7A 03-28-2021, 04:39 PM
Replies: 18
Views: 2,364
Posted By tjo
If I was looking to buy an RV, FI vs carb would...

If I was looking to buy an RV, FI vs carb would not be the decision maker. I would prefer injection, but I would first worry about:
- airframe condition
- engine condition
- 360 ci engine, but not a...
Forum: RV-9/9A 03-15-2021, 09:51 AM
Replies: 22
Views: 3,066
Posted By tjo
Yep, that's my point, if it wasn't clear it's...

Yep, that's my point, if it wasn't clear it's because I rarely articulate well.... I just want to point out that any one of these planes is just a bunch of parts. You can apply them and modify them...
Forum: RV-9/9A 03-14-2021, 11:19 PM
Replies: 22
Views: 3,066
Posted By tjo
You could probably clip the wings and do it, but...

You could probably clip the wings and do it, but you need to do all your own engineering design and analysis work. It would be truly experimental. I havenít heard of anyone else that has done it...
Forum: RV Building Tips/Techniques 03-03-2021, 05:27 PM
Replies: 22
Views: 2,255
Posted By tjo
the right edge of the part is tapered. Therefore...

the right edge of the part is tapered. Therefore the front edge is visible, but the back edge is hidden and slightly narrower than the front, so it is a dashed (hidden) line going all the way top to...
Forum: RV Building Tips/Techniques 03-03-2021, 11:46 AM
Replies: 22
Views: 2,255
Posted By tjo
The easy way is if the flange was facing away...

The easy way is if the flange was facing away from you, it would be hidden from view by the back of the part. As a hidden line it would be dashed. if the flange was coming out toward you it would...
Forum: Traditional Aircraft Engines 02-23-2021, 02:55 PM
Replies: 1
Views: 1,080
Posted By tjo
Engines are getting expensive!

Becoming a concern because I am getting closer to needing one. It seems like the engine prices have gone up around 30-40% over the last 5 years. Much more than inflation. Anyone know what's going...
Forum: Alternative Engines 01-24-2021, 04:03 PM
Replies: 52
Views: 5,998
Posted By tjo
There is no rocket science here, it is all pretty...

There is no rocket science here, it is all pretty easy and has been for a long time. Everything is better about an electric drive. The problem is, and always has been, energy storage. If you can...
Forum: RV-10 01-22-2021, 10:25 AM
Replies: 19
Views: 2,315
Posted By tjo
You are making the right choice regarding...

You are making the right choice regarding airplane vs. second home/vacation property. An RV (Vans) and Airbnb beats a second home in both cost and flexibility big time!

Tim
Forum: RV-10 01-21-2021, 10:18 PM
Replies: 19
Views: 2,315
Posted By tjo
I can't answer your question, but I can propose...

I can't answer your question, but I can propose some options:
Option 1) Build a 10, fly rentals in the mean time.
Option 2) Buy a 4 seat, 172, Cherokee, Musketeer, 182, whatever you want to afford...
Forum: RV General Discussion/News 01-16-2021, 07:07 PM
Replies: 28
Views: 3,989
Posted By tjo
My two cents: 9 with a 360. It will do lots of...

My two cents:
9 with a 360. It will do lots of fun stuff, even some aerobatic maneuvers like lazy 8's rolls, even loops, but that takes some care. Great cross country, great cruise, and great short...
Forum: RV General Discussion/News 01-14-2021, 11:35 AM
Replies: 28
Views: 3,011
Posted By tjo
Keep in mind that the aerobatic limit for a 7 and...

Keep in mind that the aerobatic limit for a 7 and 8 is 1600lbs and if you have a passenger you need parachutes.

Tim
Forum: RV-14 12-25-2020, 06:04 PM
Replies: 63
Views: 14,852
Posted By tjo
As far as buying, whatever everyone else said. ...

As far as buying, whatever everyone else said. As far as building, the prices folks here are quoting as necessary make my head spin. I know you can spend tons, but you don't have to. I heard the...
Forum: RV-8/8A 10-30-2020, 03:47 PM
Replies: 26
Views: 7,103
Posted By tjo
Just my opinion, of course, but best HP/$ is...

Just my opinion, of course, but best HP/$ is O360. Injected, if you want. The only reason to go angle valve is to go O390. There is no reason to go O320 unless you find a great deal. Simple...
Forum: Safety 10-14-2020, 12:54 PM
Replies: 38
Views: 7,735
Posted By tjo
As stated in here several times, Lycomings very...

As stated in here several times, Lycomings very rarely fail, so the risk is very low. That said, can you imagine what the performance and life of an aviation engine would be if it had the...
Forum: RV-12/RV-12iS 09-09-2020, 08:12 PM
Replies: 54
Views: 14,453
Posted By tjo
Silicone is a good material and lasts well. It is...

Silicone is a good material and lasts well. It is soft, though, so tight hose clamps can damage it and it is not as abrasion resistant as epdm.

Tim
Forum: Alternative Engines 09-08-2020, 05:57 PM
Replies: 35
Views: 7,067
Posted By tjo
The problem is, to have roughly half the range of...

The problem is, to have roughly half the range of your typical RV, you would need about 1800 lbs of batteries. Not feasible for an RV airframe, unless you are just building a science experiment.

Tim
Forum: RV-9/9A 06-24-2020, 11:00 AM
Replies: 20
Views: 6,172
Posted By tjo
As with most everything, I think the correct...

As with most everything, I think the correct answer is, "it depends." I am building a 9, so no direct experience yet beyond flying the factory demo plane, but a few thoughts that may help:
1) a 9,...
Forum: RV-9/9A 05-28-2020, 11:18 PM
Replies: 85
Views: 17,776
Posted By tjo
Which is why I referenced rough air in the first...

Which is why I referenced rough air in the first point. I plan to pay attention there as well, but rough air is not fun in any airplane; that's my point, not to cavalierly go past Vno.

Tim
Forum: RV-9/9A 05-28-2020, 10:03 PM
Replies: 85
Views: 17,776
Posted By tjo
A few things. First, that table of speeds is a...

A few things.

First, that table of speeds is a big reason why the 9 is the greatest plane that vans offers, 49mph stall (at gross) with 180-200 mph cruise is fantastic! (Yes, slower if it is rough,...
Forum: RV General Discussion/News 05-05-2020, 04:47 PM
Replies: 75
Views: 15,858
Posted By tjo
It's amazing how much cognitive ability you lose...

It's amazing how much cognitive ability you lose when stressed. Back when I had maybe 150 hrs, I was asked to fly my Cessna 150 over to PDX for a Horizon Air sponsored Boy and Girl Scout aviation...
Forum: RV-10 04-02-2020, 11:14 AM
Replies: 14
Views: 5,333
Posted By tjo
What does it use for a PSRU? I didn?t see that...

What does it use for a PSRU? I didn?t see that on the website.

Tim
Forum: RV-14 11-23-2019, 08:46 PM
Replies: 40
Views: 8,269
Posted By tjo
You already know they aren?t equal, one of them...

You already know they aren?t equal, one of them is flying a tail wheel:)

Tim
Forum: RV-14 11-22-2019, 05:00 PM
Replies: 40
Views: 8,269
Posted By tjo
To the original question, and IMHO: The benefits...

To the original question, and IMHO:

The benefits of a tailwheel are:
1) looks
2) less drag (no data, just an opinion)
3) less weight
4) less cost
5) keeps the prop out of the rocks when doing a...
Forum: Safety 11-14-2019, 11:13 AM
Replies: 22
Views: 4,685
Posted By tjo
Smile Sorry about the damage. That said, have you been...

Sorry about the damage. That said, have you been taking your baby aspirin?:)
Forum: RV-9/9A 07-01-2019, 09:41 PM
Replies: 4
Views: 1,666
Posted By tjo
Yep, the note was there, thanks. Tim

Yep, the note was there, thanks.

Tim
Forum: RV-9/9A 07-01-2019, 04:02 PM
Replies: 4
Views: 1,666
Posted By tjo
Really tight fit of the control stick to stick base

This seems too tight to me, anyone else experience this? I had to bend the Clevis out slightly to get the stick base in and it just doesn’t look...
Forum: Safety 03-25-2019, 10:20 PM
Replies: 91
Views: 13,687
Posted By tjo
Keep in mind that you need some margin between...

Keep in mind that you need some margin between stall speed and approach speed. That said, that is why 1.3 times stall is the target speed, the margin is built in to this target. If you are over...
Forum: Northwest 03-13-2019, 11:36 AM
Replies: 3
Views: 1,069
Posted By tjo
When I go, I go to Boeing Field and then Uber. ...

When I go, I go to Boeing Field and then Uber. If you need a car to be more flexible, or you are headed somewhere else it might be different, but that's what I do.

Tim
Forum: RV-9/9A 02-10-2019, 07:58 PM
Replies: 5
Views: 1,275
Posted By tjo
Fuse Center section

In the instructions it says to bolt together the fwd and aft center sections with 1.438? blocks to test fit, then take the apart. Seems kind of a waste to fabricate wood blocks to this specific...
Forum: RV General Discussion/News 01-19-2019, 03:26 PM
Replies: 29
Views: 4,321
Posted By tjo
Basically, it is a great opportunity for...

Basically, it is a great opportunity for educating someone. I always tell them it is an all metal, riveted structure the same as a Cessna, or for that matter, a Boeing. Uses basically the same...
Forum: RV-9/9A 12-17-2018, 06:11 PM
Replies: 62
Views: 11,797
Posted By tjo
I recommend the 9 slider, but that's because...

I recommend the 9 slider, but that's because that's what I am building :). When I picked up the fuse crate it was marked at the factory with my name - "unique". So if you too want to be unique,...
Forum: RV-9/9A 12-02-2018, 12:23 PM
Replies: 1
Views: 932
Posted By tjo
F-904 assembly

I?m confused on this assembly:
Background - I bought QB wings second hand and a SB fuse from Vans. The wing kit did not have the F-904 with it, the previous builder deleted it from his order.

So I...
Forum: RV-14 11-06-2018, 10:59 AM
Replies: 27
Views: 6,231
Posted By tjo
I'm building a 9, not a 14, but I did some...

I'm building a 9, not a 14, but I did some research on this topic. Here's what I found:
1) Of the folks with tailwheels, most did not have them.
2) The ones that did have them wouldn't have it...
Forum: Traditional Aircraft Engines 10-04-2018, 11:06 AM
Replies: 21
Views: 4,740
Posted By tjo
I am not an engine expert, so no advice there. ...

I am not an engine expert, so no advice there. Just wanted to say don't let any negative feedback deter you form asking questions!

Tim
Forum: Rocket 07-09-2018, 12:31 AM
Replies: 25
Vne
Views: 5,161
Posted By tjo
Were the guys claiming 350(450) reliable hp out...

Were the guys claiming 350(450) reliable hp out of a Sube car guys or airplane guys?

Tim
Forum: RV-14 04-18-2018, 04:24 PM
Replies: 6
Views: 3,120
Posted By tjo
Isn't that the definition of 7?

Isn't that the definition of 7?
Forum: RV-8/8A 03-27-2018, 01:47 PM
Replies: 14
Views: 4,242
Posted By tjo
It's been a while, but I went through a similar...

It's been a while, but I went through a similar process. Interestingly, in the end, the costs are about the same. The airframes are basically the same, ~$23K. Instrumentation can be the same, it's...
Forum: RV General Discussion/News 11-28-2017, 06:17 PM
Replies: 21
Views: 3,887
Posted By tjo
I know you didn't ask this, but a friend of mine...

I know you didn't ask this, but a friend of mine has Sierra's and his airplane partner has Zulu's. He says he can't tell the difference. As a result, I have Sierra's and really like them. Can't...
Forum: RV General Discussion/News 10-05-2017, 10:10 AM
Replies: 13
Views: 3,547
Posted By tjo
When I spill any petroleum liquid on the floor in...

When I spill any petroleum liquid on the floor in the garage I use alchohol to clean it up. I don't know if this is right, not only am I not a chemist, but I don't play one on TV and didn't stay in...
Forum: RV General Discussion/News 09-14-2017, 08:50 AM
Replies: 16
Views: 3,805
Posted By tjo
Recommended

I read it and Stick and Rudder and I got my primary instruction in a J5 cub. As has been said, the most valuable thing will be the instruction in the plane, but I really recommend the book as well,...
Forum: Nosewheel vs. Tailwheel 04-21-2017, 08:45 AM
Replies: 14
Views: 5,594
Posted By tjo
The TW plane is faster just sitting on the...

The TW plane is faster just sitting on the ground!!!! :)

Tim
Forum: RV-7/7A 12-09-2016, 01:28 PM
Replies: 29
Views: 13,854
Posted By tjo
You'll get lots of good input, but on the...

You'll get lots of good input, but on the economic side the cost difference is on the order of $50 per hour not including maintenance, which means your "savings" would be about $3k assuming nothing...
Forum: RV General Discussion/News 10-06-2016, 06:32 PM
Replies: 3
Views: 1,774
Posted By tjo
I've tracked this data, since I can be kind of a...

I've tracked this data, since I can be kind of a geek that way, and the 2015 production rate was this:

2015 completion rate
RV-3 6.9
RV-4 ...
Forum: Alternative Engines 08-19-2016, 06:16 PM
Replies: 15
Views: 10,299
Posted By tjo
A couple of comments FWIW: 1) Carrol Smith...

A couple of comments FWIW:

1) Carrol Smith consistently cracks me up, and is also usually technically very accurate. (see post #4)

2) I have spent a good bit of time looking at and dealing with...
Forum: RV-8/8A 08-08-2016, 07:38 PM
Replies: 45
Views: 20,428
Posted By tjo
Sounds more like a 9 with an io340 or parallel...

Sounds more like a 9 with an io340 or parallel vale io360 to me. Maybe a 14, but you won't find one of those already built.

Tim
Forum: RV General Discussion/News 06-22-2016, 10:03 PM
Replies: 67
Views: 16,350
Posted By tjo
Interesting to me that the last time this basic...

Interesting to me that the last time this basic question was asked the big recommendations were Zulus over Bose, but the Halos were also high on everyone's list. FWIW,

Tim
Forum: RV-9/9A 06-14-2016, 09:49 AM
Replies: 24
Views: 5,827
Posted By tjo
As a reference, I did a poll a couple of years...

As a reference, I did a poll a couple of years ago and asked:
Did you build an A-model or Tailwheel?
Would you do it again?
Do you want to change it?
Did you change it?

1) The bottom line was that...
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