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Search: Posts Made By: tjo
Forum: RV-9/9A Yesterday, 07:36 PM
Replies: 24
Views: 2,516
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 Yesterday, 10:58 AM
Replies: 40
Views: 2,942
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: 12
Views: 951
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: 2,502
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: 13,980
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: 1,816
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: 2,700
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: 2,700
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: 1,590
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: 1,590
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: 956
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: 4,825
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: 1,887
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: 1,887
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: 3,235
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: 2,402
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: 12,140
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: 6,225
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: 6,719
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: 11,725
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: 5,770
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: 5,483
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: 16,209
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: 16,209
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: 76
Views: 14,541
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: 4,629
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: 7,159
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: 7,159
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: 4,435
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: 1,587
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: 1,587
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: 12,896
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: 1,003
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: 1,211
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: 4,159
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: 11,229
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: 872
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: 5,746
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: 4,487
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: 4,952
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: 2,893
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: 4,017
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: 3,716
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: 3,370
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: 3,694
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: 5,378
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: 13,531
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: 1,727
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: 9,956
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: 19,963
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: 16,053
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: 5,705
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...
Forum: RV General Discussion/News 03-24-2016, 09:41 AM
Replies: 16
Views: 7,240
Posted By tjo
This is my point as well. If you are talking...

This is my point as well. If you are talking similar performance (an angle valve in a 7/8 is different performance from an angle valve in a 14. The performance alignment is an angle valve in a 14...
Forum: RV General Discussion/News 03-23-2016, 10:17 PM
Replies: 16
Views: 7,240
Posted By tjo
I thought about this as well, briefly. Since we...

I thought about this as well, briefly. Since we are talking differences here, it is really quite simple. The -14 kit price will be $11k to $12k more. The engine, new, will be $11k to $12k more. ...
Forum: RV General Discussion/News 02-10-2016, 11:58 PM
Replies: 16
Views: 4,822
Posted By tjo
Here's the thing, a two place airplane airframe...

Here's the thing, a two place airplane airframe basically will cost $20k, regardless of manufacturer for an aluminum skin and stringer configuration, tube and fabric is more, all composite is more. ...
Forum: Tools 02-09-2016, 01:27 PM
Replies: 35
Views: 8,220
Posted By tjo
Lots of good stuff here, but my perspective: You...

Lots of good stuff here, but my perspective:

You know the old saying, "You get what you pay for!" Well, in this case, with cheap, or midpriced tools, you get adequate, or good to great tools. With...
Forum: RV General Discussion/News 01-21-2016, 01:18 PM
Replies: 21
Views: 7,087
Posted By tjo
Those are a couple of great answers. In summary,...

Those are a couple of great answers. In summary, the easy answer is, it will always be better with a fairing or aero shape because the aero shape will have roughly 5% of the form drag of the...
Forum: RV General Discussion/News 01-20-2016, 01:14 PM
Replies: 31
Views: 4,735
Posted By tjo
OK, I will. This is correct: Tim

OK, I will. This is correct:



Tim
Forum: RV General Discussion/News 01-11-2016, 01:52 PM
Replies: 8
Views: 1,998
Posted By tjo
This is what they are posting on their...

This is what they are posting on their completions page, so completions.

Tim
Forum: RV General Discussion/News 01-11-2016, 01:11 PM
Replies: 8
Views: 1,998
Posted By tjo
Build rates

If ya'll are interested, just for fun I started tracking the Van's published completion numbers to get an idea what the completion rates were not just the totals. For 2015 they are:

RV-3 ...
Forum: RV-7/7A 01-04-2016, 06:30 PM
Replies: 11
Views: 2,448
Posted By tjo
Sounds like a 9 would be best. Tim

Sounds like a 9 would be best.

Tim
Forum: RV-9/9A 12-18-2015, 10:09 PM
Replies: 9
Views: 3,838
Posted By tjo
As terrye says, thee are 3 categories. Utility...

As terrye says, thee are 3 categories. Utility and aerobatic are for aerobatic, but any aerobatic manoevers, they need to be demonstrated during flight testing.

For what it is worth Citabrias are...
Forum: RV-7/7A 12-14-2015, 01:45 PM
Replies: 26
Views: 4,988
Posted By tjo
As another perspective, do you have a passion for...

As another perspective, do you have a passion for driving? No? Neither do most people, but they drive just the same. Every day even. Why? Because they want to get somewhere.

If you want to do...
Forum: RV Ongoing Maintenance Issues 12-12-2015, 09:38 AM
Replies: 27
Views: 11,354
Posted By tjo
Are you talkin' about the air box or the whole...

Are you talkin' about the air box or the whole machine :)

Tim
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