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Search: Posts Made By: Ralph Inkster
Forum: RV General Discussion/News Yesterday, 08:50 PM
Replies: 30
Views: 7,880
Posted By Ralph Inkster
PM me if you don't locate one thru the...

PM me if you don't locate one thru the venders.

I should have at least one hiding on the shelves.
Forum: RV-6/6A 11-14-2017, 01:28 PM
Replies: 20
Views: 1,157
Posted By Ralph Inkster
900 hrs? Spark- How is mag timing? Has the 500...

900 hrs?
Spark- How is mag timing? Has the 500 hr mag inspections been performed?

Fuel- Any difference with & without boost pump on? Checked fuel primer lines and connections?

Carb- overhaul...
Forum: RV General Discussion/News 11-12-2017, 11:55 AM
Replies: 16
Views: 1,028
Posted By Ralph Inkster
Yes to Alt air door, no to following install plans

My first build suffered FOD damage as described by Brett, so agree with his concerns. But I still see the value of installing this safety device on filter housings. The valve was installed...
Forum: RV-8/8A 11-08-2017, 09:03 AM
Replies: 5
Views: 477
Posted By Ralph Inkster
Before cutting further holes in the side of the...

Before cutting further holes in the side of the fuselage, I'd experiment with installing a 'T' in the scatt tube, running to a second eyeball vent. I've found the NACA scoops provide lots of air...
Forum: RV-7/7A 11-03-2017, 12:20 PM
Replies: 6
Views: 345
Posted By Ralph Inkster
Measured 90 degrees from canopy side rail. 41"...

Measured 90 degrees from canopy side rail. 41" high. How you trim your plexi when fitting will cause slight variation of this height in your project.
Forum: RV-7/7A 11-02-2017, 12:51 PM
Replies: 10
Views: 896
Posted By Ralph Inkster
Space out the screw head with washers if need be,...

Space out the screw head with washers if need be, but don't grind the V/Cover flange, you will cause uneven gasket tension & leaks will result. Plus, your nice chromed V/C will rust there...
Forum: Canada 10-20-2017, 04:40 PM
Replies: 19
Views: 1,354
Posted By Ralph Inkster
Hi Nedim You are welcome to drop by my hangar at...

Hi Nedim
You are welcome to drop by my hangar at Springbank anytime & talk the various models. I have flown the 9's & 12, plus 6's, 7's, & 8's. So could give you some perspective on each. You would...
Forum: RV General Discussion/News 10-20-2017, 04:21 PM
Replies: 8
Views: 729
Posted By Ralph Inkster
I've had to rework baffles that suffered from...

I've had to rework baffles that suffered from poor fit between cowl & baffle. Once that was accomplished, and Vans rubber seals fitted to lie smoothly against the cowl, I've not had to touch them...
Forum: Fuel Injection Systems 10-16-2017, 12:22 PM
Replies: 9
Views: 562
Posted By Ralph Inkster
Vern Hop in one of your wonder machines & point...

Vern
Hop in one of your wonder machines & point it East for 90 minutes or so. Ross & or I can show you how complicated (or not) to install the system. We might even buy you lunch!
Forum: RV General Discussion/News 10-11-2017, 02:39 PM
Replies: 17
Views: 1,031
Posted By Ralph Inkster
You don't have a set of plans? The few parts...

You don't have a set of plans? The few parts required would be called out on them & the arrangement for installing also illustrated.

Difficulty would depend on how many parts the original builder...
Forum: Electronic Ignition Systems 10-10-2017, 03:38 PM
Replies: 140
Views: 13,508
Posted By Ralph Inkster
"maus92 I've determined that I would need...

"maus92 I've determined that I would need to install a second alternator (or another backup battery) which would essentially equalize the cost between P-Mags and the SDS CPI for a split EI/mag...
Forum: Glass Cockpit 10-02-2017, 06:52 PM
Replies: 5
Views: 417
Posted By Ralph Inkster
If I remember correctly we used the Skyview base...

If I remember correctly we used the Skyview base map & Jeppesen North America obstacle & nav data pkg. We have used them on a 6, 7A & 12. Things like frequency migration & synthetic vision work...
Forum: RV Building Tips/Techniques 09-18-2017, 08:40 PM
Replies: 10
Views: 941
Posted By Ralph Inkster
In past builds and panel upgrades I have mounted...

In past builds and panel upgrades I have mounted the jacks; at the rear of the arm rests, front of the arm rests, mid way below the arm rests, between the seats, the position I (& the owners) like...
Forum: RV General Discussion/News 09-13-2017, 11:25 AM
Replies: 32
Views: 5,416
Posted By Ralph Inkster
Bevan, you should have a Gascolator (Canada eh?)...

Bevan, you should have a Gascolator (Canada eh?) after your boost pump, this should catch & illustrate any debris before it becomes an issue down stream. Is it a good idea to string a series of...
Forum: RV General Discussion/News 09-10-2017, 08:41 PM
Replies: 5
Views: 402
Posted By Ralph Inkster
i have mounted them in the tail cone like Gary,...

i have mounted them in the tail cone like Gary, mid tail cone up high, mid wing & on outboard wing rib, all with good results. Just be mindful to keep magnetometer at least 36" away from any powered...
Forum: RV General Discussion/News 09-05-2017, 01:03 PM
Replies: 14
Views: 1,204
Posted By Ralph Inkster
The folks at Wentworth Aircraft Salvage once told...

The folks at Wentworth Aircraft Salvage once told me that about half the salvage inventory they buy comes from aircraft that was parked in hangars.
Forum: RV-7/7A 08-17-2017, 12:36 PM
Replies: 8
Views: 921
Posted By Ralph Inkster
While you are at it, don't forget to drill the...

While you are at it, don't forget to drill the corresponding hole thru the side of the fuselage for the (maybe) return line, easy to plug off for now with an appropriate sized grommet (center hole...
Forum: Canada 08-02-2017, 05:18 PM
Replies: 21
Views: 1,481
Posted By Ralph Inkster
The West Coast Ravens came up a few days early...

The West Coast Ravens came up a few days early and put on a formation clinic for a few of us prior to the Calgary Springbank airshow. What a great & fun experience! Thankyou!

The Ravens performed...
Forum: Canada 06-12-2017, 08:34 PM
Replies: 18
Views: 1,437
Posted By Ralph Inkster
I happen to be a Tech Councelor... Sportair...

I happen to be a Tech Councelor... Sportair instructor... Builder assist provider... & folks have other names for me as well...

Drop in if you are ever near Springbank!
403-614-6142
344 Noorduyn...
Forum: RV-12 06-12-2017, 01:55 PM
Replies: 30
Views: 4,324
Posted By Ralph Inkster
Just wondering, did you switch the vacuum lines...

Just wondering, did you switch the vacuum lines to see if the variance was in the gauge set-up?
Forum: Canada 06-12-2017, 01:40 PM
Replies: 18
Views: 1,437
Posted By Ralph Inkster
Looking at the 14 plans on CD, I see two...

Looking at the 14 plans on CD, I see two options:
1- Call your MDRA inspector & ask if inspection thru a lightening hole is sufficient, he could see the third outboard front rib shop heads this way &...
Forum: Safety 06-01-2017, 04:47 PM
Replies: 20
Views: 3,816
Posted By Ralph Inkster
clogged fuel line

A couple years ago a builder asked me to close & pressure test his tanks that had sat around for a few years. One tank had a flop tube in it & just before I sealed the access plate on the tank, I...
Forum: RV General Discussion/News 05-26-2017, 01:35 AM
Replies: 10
Views: 1,173
Posted By Ralph Inkster
Spinner?

Had one plane that came in for prop balancing with a similar scenario. Good balancing results at higher RPMs but would shimmy just above idle. Drove us crazy going thru possible causes until we...
Forum: Traditional Aircraft Engines 05-11-2017, 10:22 AM
Replies: 10
Views: 1,190
Posted By Ralph Inkster
In place of the check valve, an inline fuel...

In place of the check valve, an inline fuel filter (protecting the boost pump) would be acceptable. Be sure not to use a paper filament type automotive filter!
Forum: RV General Discussion/News 04-25-2017, 04:13 PM
Replies: 5
Views: 874
Posted By Ralph Inkster
My painter suggested a urathane primer, would...

My painter suggested a urathane primer, would seal & is relative easy for him to knock down before when he applies his final primer coats. He strongly stated he would not be happy if any rattle can...
Forum: Canada 04-25-2017, 03:50 PM
Replies: 10
Views: 1,440
Posted By Ralph Inkster
Haven't checked out the Polar bears of Nunavut,...

Haven't checked out the Polar bears of Nunavut, or kissed the Cod in Newfoundland, or passed thru Labrador on the way to the kissing event, yet.
But our Cdn RVs have checked off the other 9 provinces...
Forum: RV-10 04-22-2017, 09:09 AM
Replies: 13
Views: 1,746
Posted By Ralph Inkster
the 540 Electroair/mag plane I worked on...

the 540 Electroair/mag plane I worked on experienced 40/100 rpm drops during proper leaned run ups. Other (4cyl) aircraft with various make EI/mag setups ranged from virtually zero EI rpm drop to...
Forum: Fuel Injection Systems 04-16-2017, 07:45 PM
Replies: 145
Views: 38,066
Posted By Ralph Inkster
You're talking about hot start? Fuel is not...

You're talking about hot start? Fuel is not boiled off as in mechanical fuel injection systems. The fuel going to the electronic injectors is maintained at what ever the pressure regulator is set...
Forum: Fuel Injection Systems 04-16-2017, 06:31 PM
Replies: 145
Views: 38,066
Posted By Ralph Inkster
Mohave award Best Design

Very nice meeting Michael & Dave at Mohave. It's good to put faces to the posters on VAF.
Bill Beaton & I felt it deserving to put forth Ross & Barry of Racetech up for recognition in front of the...
Forum: Electronic Ignition Systems 04-08-2017, 12:17 AM
Replies: 7
Views: 825
Posted By Ralph Inkster
I have seen no effect or disadvantage by having...

I have seen no effect or disadvantage by having one CPI (or EM-5) firing the top plugs & the other module firing the bottom ones. Its much easier & neater routing the wires this way, especially when...
Forum: RV Ongoing Maintenance Issues 04-05-2017, 07:50 PM
Replies: 26
Views: 2,299
Posted By Ralph Inkster
"Ralph: Good point but yes, in fact we did ensure...

"Ralph: Good point but yes, in fact we did ensure that the tubes seemed to be correctly connected. If you blow in the pitot tube, air only comes out of it. If you blow in the AoA tube, air comes out...
Forum: RV Ongoing Maintenance Issues 04-05-2017, 02:39 AM
Replies: 26
Views: 2,299
Posted By Ralph Inkster
Remember the Dynon pitot recall? We were...

Remember the Dynon pitot recall? We were performing a Pitot/Static re-certification after installing the replacement pitot & experienced similar results as you have. The new & old pitots looked...
Forum: RV-8/8A 04-04-2017, 01:32 PM
Replies: 1
Views: 514
Posted By Ralph Inkster
Trace the end of an aileron or flap, make it a...

Trace the end of an aileron or flap, make it a couple inches longer - done
Forum: RV General Discussion/News 04-04-2017, 10:55 AM
Replies: 3
Views: 865
Posted By Ralph Inkster
Have you searched here for 'SARL race tips" or...

Have you searched here for 'SARL race tips" or similar? Lots of ideas/strategies/tips/opinions/fantasy/results posted... Good luck on the race!
Forum: RV-9/9A 03-22-2017, 07:50 PM
Replies: 19
Views: 3,615
Posted By Ralph Inkster
Yep, guess it's up to who you get on the tech...

Yep, guess it's up to who you get on the tech line.
I like the idea of Tinnerman washers too.
Forum: RV-9/9A 03-22-2017, 01:43 PM
Replies: 19
Views: 3,615
Posted By Ralph Inkster
I've had a 6 & a 7 come thru the shop some years...

I've had a 6 & a 7 come thru the shop some years back with those screws not installed at all. I called Vans & was advised they were structural. Was instructed to install them. They both ended up...
Forum: Traditional Aircraft Engines 03-13-2017, 10:20 AM
Replies: 2
Views: 1,160
Posted By Ralph Inkster
"1946 Bellanca Cruisair 14-13-2 (70 YRS OLD...

"1946 Bellanca Cruisair 14-13-2 (70 YRS OLD 8/15/16)
RV14A (N14ZT), Ser#140195"

Wouldn't it be wonderful if your Bellanca was still flying when N14ZT turns 70!!!
Forum: Electrical Systems 03-10-2017, 11:09 AM
Replies: 19
Views: 3,059
Posted By Ralph Inkster
Don't know about 'best practices', but how about...

Don't know about 'best practices', but how about 5min epoxy (or JB Weld) 4 studs to the box? Insures ability to service later.
Forum: RV-14 03-09-2017, 04:32 PM
Replies: 15
Views: 5,106
Posted By Ralph Inkster
Another contributor to sticky bushings is over...

Another contributor to sticky bushings is over torquing the bolt, literally squeezing the bushing into the steel bellcrank tube. The OP was applying 85 in/lb to the bolt (mis-reading torque values...
Forum: RV-7/7A 03-05-2017, 03:05 PM
Replies: 20
Views: 5,178
Posted By Ralph Inkster
Murphy's Law. Brake O-rings can go anytime. ...

Murphy's Law.
Brake O-rings can go anytime. Same with over tightened brake line flares. Be thankful it happened at your home field.
Forum: Fuel Injection Systems 03-04-2017, 10:22 AM
Replies: 85
Views: 14,108
Posted By Ralph Inkster
Is that 3 batteries on the firewall?

Is that 3 batteries on the firewall?
Forum: RV-9/9A 03-03-2017, 02:26 PM
Replies: 9
Views: 1,193
Posted By Ralph Inkster
What is a sub structure die?

What is a sub structure die?
Forum: RV-9/9A 03-03-2017, 02:25 PM
Replies: 9
Views: 1,193
Posted By Ralph Inkster
Try using less force or pressure while dimpling. ...

Try using less force or pressure while dimpling. The force required will vary with the different thickness material you are working on. Practice on some scrap till you get the right 'feel' before...
Forum: RV-7/7A 03-01-2017, 03:55 PM
Replies: 14
Views: 3,328
Posted By Ralph Inkster
A buddy with Ham radio experience once told me...

A buddy with Ham radio experience once told me that about a 6" diameter ground plane was reasonable for a 406 ELT antenna with reasonable broadcast results. He (tip up 7) attached a plate...
Forum: RV-6/6A 03-01-2017, 03:02 PM
Replies: 9
Views: 1,741
Posted By Ralph Inkster
Vans does sell an oversized panel blank, if more...

Vans does sell an oversized panel blank, if more space is needed.
Forum: RV General Discussion/News 03-01-2017, 02:53 PM
Replies: 23
Views: 3,906
Posted By Ralph Inkster
Oldie... & someday a Goodie

How embarrassing... I have 20645 sitting in the corner gathering dust... again.
I got it as a poorly built example, COMPLETELY disassembled it & basically rebuilt it as a scratch built, very few...
Forum: RV-10 02-28-2017, 01:19 PM
Replies: 5
Views: 1,010
Posted By Ralph Inkster
There are plexi polishing products available at...

There are plexi polishing products available at local auto parts stores. Lens aging is inevitable, even on cars.
Forum: RV-10 02-25-2017, 04:40 PM
Replies: 11
Views: 1,773
Posted By Ralph Inkster
I can see backfire possibilities if the ACS...

I can see backfire possibilities if the ACS switch is switched from
BOTH -> Left -> BOTH -> RIGHT than back to BOTH during ign checks.
I do BOTH -> LEFT -> RIGHT -> than back to BOTH during my...
Forum: RV-10 02-25-2017, 11:48 AM
Replies: 11
Views: 1,773
Posted By Ralph Inkster
My experiences with Mag / EI setups are more in...

My experiences with Mag / EI setups are more in tune with Jay's description, larger rpm drop on Mag / minimal drop on EI, assuming 1700 rpm leaned run-up done.
Because you are experiencing higher...
Forum: Canada 02-12-2017, 06:04 PM
Replies: 6
Views: 1,101
Posted By Ralph Inkster
I know the commercial operators have no problem...

I know the commercial operators have no problem shooting diagonally across northern Alberta, but that's a bit too remote for my liking. I tend to fly where I know there is 'some' traffic & airstrip...
Forum: Canada 02-11-2017, 02:29 AM
Replies: 6
Views: 1,101
Posted By Ralph Inkster
The NE route around Primrose does look pretty...

The NE route around Primrose does look pretty remote.
I've flown the Calgary - Lac La Biche - Ft Mac - Ft Smith - Yellowknife route a few times & though flying over fairly remote terrain, was...
Forum: Painting your RV 02-06-2017, 11:14 AM
Replies: 2
Views: 1,036
Posted By Ralph Inkster
I've always painted the bracket, ribs & interior...

I've always painted the bracket, ribs & interior wing skin (white in my case to match the outside color) to give a more finished appearance. The lamp parabolic shape is directing any USABLE light...
Forum: RV General Discussion/News 01-25-2017, 12:51 AM
Replies: 19
Views: 4,041
Posted By Ralph Inkster
It's been done! Must be about 15 years ago, I...

It's been done!
Must be about 15 years ago, I attended the NW Arlington Air Show / Fly In just north of Seattle. There was a RV6A parked there painted in a Naval scheme with an authentic Tail Hook...
Forum: Canada 01-24-2017, 01:00 PM
Replies: 10
Views: 2,172
Posted By Ralph Inkster
North to Alaska

Yes, as noted above, the biggest challenge you may encounter is dealing with US customs & EAPIS procedures on both sides. Do your research ahead of time!
I should mention that Canada has very...
Forum: RV General Discussion/News 01-23-2017, 02:06 PM
Replies: 11
Views: 3,793
Posted By Ralph Inkster
Nice solution for jacking on your Rocket Vince, &...

Nice solution for jacking on your Rocket Vince, & would work on Harmons too as the lower cross bar on those mounts are welded further away & lower from the firewall (than RVs) giving more access. I...
Forum: RV General Discussion/News 01-19-2017, 02:33 PM
Replies: 33
Views: 7,576
Posted By Ralph Inkster
He'll need a custom mount anyways, so pushing the...

He'll need a custom mount anyways, so pushing the engine forward to maintain C of G is a given. Think of the sleek custom turbine looking cowling he will end up with.
Forum: RV General Discussion/News 01-18-2017, 05:41 PM
Replies: 3
Views: 2,100
Posted By Ralph Inkster
Excellent reference to have, even for those...

Excellent reference to have, even for those pilots speaking Canadjan!
Forum: RV-7/7A 01-17-2017, 12:51 PM
Replies: 21
Views: 3,563
Posted By Ralph Inkster
Any other builders on the field? They probably...

Any other builders on the field? They probably have a can of out of date proseal under the bench. (it's good for so many other things!). Mix up a small batch about the size of a 1/2 shot glass, use...
Forum: Traditional Aircraft Engines 01-09-2017, 11:15 PM
Replies: 41
Views: 9,587
Posted By Ralph Inkster
CPI doesn't have to be visible on your panel 100%...

CPI doesn't have to be visible on your panel 100% of the time. You only really have to look at it on initial set-up, & after that it could be hidden just about anywhere.
I loosely wired Bill...
Forum: RV General Discussion/News 01-08-2017, 05:57 PM
Replies: 3
Views: 969
Posted By Ralph Inkster
The canopy frame SHOULD be a bit wider & taller...

The canopy frame SHOULD be a bit wider & taller than the roll over bar, this accomodates the windshield curve in the plexi. Before you cut the frame apart, I strongly suggest you call Vans support &...
Forum: RV-7/7A 01-06-2017, 12:54 AM
Replies: 5
Views: 1,226
Posted By Ralph Inkster
i did some leak repairs on a 20 year old Harmon...

i did some leak repairs on a 20 year old Harmon Rocket a while back. It's flop tube appeared a bit stiffer than new hose but still would flex it's full range as required. No sign of porosity.
Forum: RV-4 01-01-2017, 02:47 PM
Replies: 6
Views: 1,808
Posted By Ralph Inkster
- Original vent line position would interfere...

- Original vent line position would interfere with full up/down flop tube movement.
- Later instructions call for a strap installed vertically to prevent side movement of flop tube to eliminate...
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