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Search: Posts Made By: Freemasm
Forum: Rocket 01-12-2020, 04:38 PM
Replies: 2
Views: 511
Posted By Freemasm
Tank configuration for Inverted flight

One of the many differences between the RV-4 and the Rocket are the fill/vent holes in the tank ribs. The RV-4 inverted flight configuration makes sense to me; basically a swing check valve in the...
Forum: RV General Discussion/News 01-01-2020, 09:16 PM
Replies: 5
Views: 365
Posted By Freemasm
GAP 26/Static system question

I just purchased a Garmin GAP 26 Pitot/AOA probe. Is there an official position/consensus regarding the static source for the probe; i.e. is the probe static source dedicated for the G3 only?

Asked...
Forum: RV General Discussion/News 12-19-2019, 07:42 AM
Replies: 2
Views: 313
Posted By Freemasm
Fuselage Support

Sorry if this has been asked/answered before. I'm traveling and only have a phone with me.

Anyone have designs/ideas for fuselage support; at least temporary? My QB F1 rocket fuselage will finally...
Forum: RV General Discussion/News 12-04-2019, 03:12 PM
Replies: 1
Views: 394
Posted By Freemasm
Fuselage shipping help

Trying to get a QB fuselage (and related small components) from Colorado Springs to FL. Talked to two well known shipping companies. One is delayed without telling me; the other keeps promising a...
Forum: Florida (Central) 11-21-2019, 07:11 PM
Replies: 3
Views: 434
Posted By Freemasm
I have been on their website. If it mentioned the...

I have been on their website. If it mentioned the monthly meeting not being at the clubhouse, it wasn't obvious. The meeting times are also posted on teh building. Will keep tying. Thanks
Forum: Florida (Central) 11-21-2019, 10:55 AM
Replies: 3
Views: 434
Posted By Freemasm
EAA Chapter 74 @ ORL

Anyone have any news about this chapter? Been trying to join for a while. The website is spartan. No replies to email. Chapter hangar is empty even on posted meeting nights. If you know anything,...
Forum: RV General Discussion/News 10-15-2019, 12:10 PM
Replies: 0
Views: 344
Posted By Freemasm
Riveting help needed, Orlando Exec (KORL)

I'll be closing out at least one wing by year's end. There's no other real aircraft building going on at Orlando Executive (KORL). I would pay an experienced builder/craftsman/A&P etc. for their help...
Forum: RV General Discussion/News 09-19-2019, 11:07 AM
Replies: 12
Views: 1,573
Posted By Freemasm
Combo approach?

I believe if you combined the knowledge from the gentleman that posted above and this approach

http://www.vansairforce.com/community/showthread.php?t=173183&highlight=leak

(which I intended to find...
Forum: Rocket 09-18-2019, 08:27 AM
Replies: 0
Views: 295
Posted By Freemasm
TR004 (404) Bulkhead to Spar clearance

Bulkhead halves are essentially done. Will be assembling them together very soon. I've gotten a lot of help and advice from Vince at TR but would like to hear what others have done. I have the Phlogo...
Forum: RV General Discussion/News 08-21-2019, 06:57 PM
Replies: 20
Views: 2,535
Posted By Freemasm
Thank you, Sir. Another testament to the great...

Thank you, Sir. Another testament to the great folks here that kindly share their knowledge.



Of course, there are others
Forum: RV General Discussion/News 08-21-2019, 12:13 PM
Replies: 20
Views: 2,535
Posted By Freemasm
Question?

Sorry. Not meant to be a thread hijack. I haven't found a manual for the GAP-26 and wasn't going to buy the pitot just yet. I assume but pressure sources need to be routed to the cockpit area....
Forum: RV-8/8A 08-12-2019, 02:08 PM
Replies: 7
Views: 822
Posted By Freemasm
Thanks

Thank you, Sir. I've seen that stub spar type construction in Piper world. Not ready to say it's better than the spliced spare construction I incorrectly referenced but I trust Vans engineering. I'm...
Forum: RV-8/8A 08-12-2019, 01:08 PM
Replies: 7
Views: 822
Posted By Freemasm
Help me, guys

I'm not building an 8 (long story but it involves RV4 wings) but I have a question, please. All of the Vans construction/drawings I've seen has a similar design philosophy; spars spliced together in...
Forum: RV General Discussion/News 07-09-2019, 07:02 PM
Replies: 0
Views: 471
Posted By Freemasm
Tank Leak Check, Different method and Lessons Learned

Forgive me if this method has already been hashed through. I've read a lot of other threads by those attempting tank leak checks. I couldn't stand the idea of finding a leak I couldn't easily fix. My...
Forum: RV General Discussion/News 05-30-2019, 12:31 PM
Replies: 2
Views: 490
Posted By Freemasm
Source of Rubberized Cork

As the title says or other method/material source for sealing tank access panels and fuel transmitters. Thanks.
Forum: Rocket 05-28-2019, 06:46 AM
Replies: 9
Views: 472
Posted By Freemasm
F1/F4

Thanks gentlemen. Yes, a Rocket set-up but more likely the F4 variant with a stroked four banger.

Building this aircraft is proving to be like many things in life. Once I've finally done it, I'll...
Forum: Rocket 05-26-2019, 08:50 PM
Replies: 9
Views: 472
Posted By Freemasm
Thanks

Thanks for replying. I donít have a fuselage yet but want to finish the wings/tanks as much as possible prior to. The more specific, the better. I canít have my time back form my previous re-doís, so...
Forum: Rocket 05-26-2019, 07:41 PM
Replies: 9
Views: 472
Posted By Freemasm
Fuel Return Line Location

Iíve settled on a future fuel system Trying to prevent future headaches. Anyone who can share suggestions for fuel return line location at the root rib, it would be greatly appreciated. BTW, Iím...
Forum: RV General Discussion/News 04-12-2019, 08:17 AM
Replies: 1
Views: 273
Posted By Freemasm
Tail Wheel Endorsement/Training Orlando, FL

Long time and current Mooney flyer (as long as hangar space/funds allow) while building an F1/F4. Any leads here would be appreciated. Much thanks.
Forum: Rocket 02-24-2019, 08:27 AM
Replies: 9
Views: 1,947
Posted By Freemasm
PM

Iíll send a PM as well
Forum: RV-4 02-11-2019, 08:16 AM
Replies: 1
Views: 562
Posted By Freemasm
Tank/rib/spar joint

I'm building an F1/F4 utilizing modified RV4 wings. The joint at the tank/rib/spar is of some concern. The tank/wing splice doubler extends from top spar cap to bottom spar cap and offers some WX...
Forum: RV Building Tips/Techniques 02-11-2019, 07:03 AM
Replies: 13
Views: 5,251
Posted By Freemasm
Basic torque rule of thumb

From my Space Shuttle Engineering days (I learned those old North American Aviation/Rockwell International/NASA specs before I learned any FAA related specs): There's a reason there's a range for...
Forum: RV General Discussion/News 01-08-2019, 01:56 PM
Replies: 2
Views: 409
Posted By Freemasm
Ah, duh. I was looking for I/F instruments under...

Ah, duh. I was looking for I/F instruments under the GEA 24 instead of the G3X. Sorry about that.
Forum: RV General Discussion/News 01-08-2019, 01:35 PM
Replies: 2
Views: 409
Posted By Freemasm
Fuel Sender type/manufacturer/style for Garmin Avionics

Getting close to closing my first tank. Plan on utilizing Garmin G3X (or whatever is out in a few years). Any good recommendations for sender type? Can't find where G offers/comments on the field...
Forum: Rocket 01-06-2019, 06:18 PM
Replies: 1
Views: 636
Posted By Freemasm
Tank Access Reinforcing Ring, correct configuration

The HRII drawings show the tank access reinforcing ring eternal to the tank/between rib and cover. The RV4 drawings show it inside tank/rib sandwiched between reinforcing ring and cover. Either...
Forum: Rocket 01-02-2019, 03:55 PM
Replies: 1
Views: 540
Posted By Freemasm
Tank Skin Rib marking, looking for ideas

Getting ready to mark rib/flute locations inside of tank skins prior to drilling, dimpling, etc. As these are six rib Rocket tanks, any ideas how to efficiently mark the skins on the inner most ribs?...
Forum: RV-4 12-04-2018, 01:24 PM
Replies: 1
Views: 671
Posted By Freemasm
PM sent

PM sent via VAF
Forum: RV General Discussion/News 12-04-2018, 12:49 PM
Replies: 23
Views: 1,552
Posted By Freemasm
The Confession

I should have probably started with this instead of jumping right to the Hi-Lok topic. I'm making F1/F4 wings from a partially completed RV-4 set. Being "out of order" in assembly (bottom skins on),...
Forum: RV General Discussion/News 12-03-2018, 05:19 PM
Replies: 23
Views: 1,552
Posted By Freemasm
Yes and No

@Steve Melton. Thanks for your reply. Respectfully, I believe you're both right and wrong here. All rivets should be in shear application. Likewise, titanium should never be used in tension. When...
Forum: RV General Discussion/News 12-03-2018, 04:08 PM
Replies: 23
Views: 1,552
Posted By Freemasm
Thanks

Please keep the suggestions coming. Hi-loks are a great product. They were used on the Space Shuttle Heat Shields (and other places) in my early engineering days. Many times they were utilized...
Forum: RV General Discussion/News 12-02-2018, 08:48 PM
Replies: 23
Views: 1,552
Posted By Freemasm
Shear

All shear apps. so titanium, steel, 7075, lots of
options can be used. Replacing AD6s in the spar. Being ďout of orderĒ will make bucking (more) difficult. I can provide part numbers (several would...
Forum: RV General Discussion/News 12-02-2018, 05:27 PM
Replies: 23
Views: 1,552
Posted By Freemasm
Hi-loks, recommended sources

I need specific sizes/lengths. Does anyone have a recommended source? Let me know. Much thanks
Forum: Rocket 11-28-2018, 10:15 AM
Replies: 0
Views: 895
Posted By Freemasm
Riveting Spar AD6s. Out of order, of course

I'm having all of the fun associated with working out of order. I'm modifying RV-4 wings that were completed to almost QB levels. I'm currently removing the big AD6 rivets holding the spar together...
Forum: RV General Discussion/News 11-27-2018, 02:55 PM
Replies: 18
Views: 3,478
Posted By Freemasm
Congratulations

In these days of social media where people post pictures of their meals and other "look at me" stuff, it's mostly annoying. For this and other reasons, I have no social media presence.

That said,...
Forum: RV General Discussion/News 11-24-2018, 03:51 PM
Replies: 0
Views: 509
Posted By Freemasm
Sheet Metal Hand Brake Suggestions

Getting into the meat of converting an RV-4 wing into an F1/F4 wing. Any suggestions on a hand brake; i.e. minimum length, manufacturers/models to avoid or suggest, etc? Nothing worse than spending...
Forum: RV General Discussion/News 11-14-2018, 07:12 AM
Replies: 18
Views: 2,411
Posted By Freemasm
In General

In general, Sir. Vapor pressure lock isn't an issue if you've done three things:
- Fuel line routing for temperature exposure. Keep the fuel lines away from heat sources
- Keep restrictions out of...
Forum: Rocket 11-09-2018, 07:09 AM
Replies: 2
Views: 484
Posted By Freemasm
Thanks

Thank you Mr. Inkster. While cross referencing the HR drawings, Team Rocket drawings, RV-8 plans, etc. I flat missed the reference figures in the RV-4 plans. I guess my "second job" is getting to me....
Forum: Rocket 11-08-2018, 01:12 PM
Replies: 2
Views: 484
Posted By Freemasm
Flop tube arrangement

Getting serious about my tank build. Will be installing a flop tube in the right tank. RV-4 instructions show an alternate configuration where the fuel/flop tube attach point is moved to the center...
Forum: RV-4 11-08-2018, 10:26 AM
Replies: 10
Views: 1,278
Posted By Freemasm
Thanks, but..,

@Vince. Thanks for the consideration. if you can move your tanks, please do. Donít wait on me. I owe you plenty of favors
Forum: RV-4 11-07-2018, 07:02 AM
Replies: 10
Views: 1,278
Posted By Freemasm
Yes. That would seemingly make it undo-able. I...

Yes. That would seemingly make it undo-able. I hate trashing or cannibalizing something of value but as usual, economics rule.
Forum: RV-4 11-05-2018, 01:17 PM
Replies: 10
Views: 1,278
Posted By Freemasm
Completed RV-4 tanks

I have completed tanks for an RV-4. Excellent build quality. Since I'm converting the wing for a different project, are these tanks worth anything? They've already been drilled for the tank flange...
Forum: RV General Discussion/News 10-27-2018, 05:12 PM
Replies: 14
Views: 1,911
Posted By Freemasm
Been there. Done that

When dealing with Sirius XM or anyone else who utilizes automatic billing cycles that you don’t like, either:

Use Shop Safe (or other one time cc# creation) if your cc company supports such. I use...
Forum: Traditional Aircraft Engines 10-15-2018, 09:07 AM
Replies: 10
Views: 1,906
Posted By Freemasm
Ring Seating?

Assume you're talking about ring seating. Lycoming engine? Run mineral oil until oil consumption until stabilizes. Should be 5 to 50 hours IIRC, the SI. Keep ground operation to a minimum as...
Forum: RV General Discussion/News 08-28-2018, 08:41 AM
Replies: 90
Views: 13,923
Posted By Freemasm
Interesting comments

Forgive the small rant. The Spirit of Experimental/Homebuilt Aircraft is unique. It should challenge convention and often does. What is disheartening and dangerous are open ended statements...
Forum: RV General Discussion/News 08-27-2018, 08:55 PM
Replies: 90
Views: 13,923
Posted By Freemasm
Too low of a vapor pressure (related to the fluid...

Too low of a vapor pressure (related to the fluid property proper) will cause fuel to vaporize (vapor lock if in fuel line) and subsequent fuel starvation. This is realized when the local static...
Forum: RV General Discussion/News 08-27-2018, 08:42 AM
Replies: 90
Views: 13,923
Posted By Freemasm
Be careful here

I don't like disputing people and hate the back and forth that ensues but please be careful here. Your last sentence is a bit cavalier in my opinion. Most aviation engines are designed to operate on...
Forum: RV General Discussion/News 08-27-2018, 07:23 AM
Replies: 90
Views: 13,923
Posted By Freemasm
GAP Piston Engine

This is all my my ancient memory banks. The specs were quite aggressive and any qualifying product would be drool worthy. A very long time ago, a Continental Engineer working on the GAP piston engine...
Forum: RV General Discussion/News 08-24-2018, 12:11 PM
Replies: 12
Views: 1,061
Posted By Freemasm
Follow-up comment

Forgive me if you're already verified this. It's not clear (to me) from your description. The mechanism in the squeezer is such that it doesn't develop full force until the very end of it's travel....
Forum: RV General Discussion/News 08-24-2018, 10:24 AM
Replies: 12
Views: 1,061
Posted By Freemasm
Donít know until you try it

Big +1 on the adjustable ram. Shins are fine for production work. Adjustable rams are cheap and usually retro-fitable. Once you use one, youíll wonder why you waited.
Forum: RV Building Tips/Techniques 08-15-2018, 07:58 PM
Replies: 9
Views: 1,359
Posted By Freemasm
A little more thought.

I assume youíve already determined #5s wonít meet edge distance. If 4s wonít buck right in the existing holes, another benefit of HI-LOKS is you can get them one or two oversized (in 64ths, I...
Forum: RV Building Tips/Techniques 08-15-2018, 02:44 PM
Replies: 9
Views: 1,359
Posted By Freemasm
One opinion (of the many you'll get)

Unless the hole is reamed specifically for a close tolerance application, you'll loose a little joint strength even though the bolt is stronger in shear (and tension). Not knowing the design basis,...
Forum: Rocket 08-05-2018, 05:03 PM
Replies: 9
Views: 1,335
Posted By Freemasm
Lots of configurations will work

Best of my knowledge here; The HR2 wings are RV-4 wings with "restationed" ribs (and some other changes). It's not just a strength issue/concern but to stiffen/avoid aero flutter at the higher...
Forum: Rocket 08-05-2018, 10:05 AM
Replies: 9
Views: 1,335
Posted By Freemasm
Clarification

Thought it was clearer than it is. The wings are at QB stage so they will essentially be RV-4 wings Modíd with larger tanks for the larger engine and to meet the different (forward) IF points.
Forum: Rocket 08-05-2018, 09:16 AM
Replies: 9
Views: 1,335
Posted By Freemasm
RV-4 wing to F1/F4 configuration

I have a set of RV-4 wings completed to ~ quick build stage. The end product goal is a 210 HP F4. Iím currently ordering/soon building 42 gallon tanks then moving WW ribs to meet new interface...
Forum: RV General Discussion/News 07-26-2018, 07:49 AM
Replies: 6
Views: 883
Posted By Freemasm
Trim Control for Tandem Seat Aircraft

Opinions solicited. I'll be closing up wings hopefully by the end of this summer. Of course there are advantages; what is the need level for (electric) roll trim on tandem seat aircraft? I will...
Forum: Rocket 07-06-2018, 09:55 AM
Replies: 25
Vne
Views: 4,328
Posted By Freemasm
Not arguing, but...

Not trying to argue but iíll Explain my short reply. The original F1 empennages were indeed modified RV emps. Mr. Frederick was nice enough to provide pages from those plans to me. There were later...
Forum: Rocket 07-06-2018, 07:11 AM
Replies: 25
Vne
Views: 4,328
Posted By Freemasm
What I think I know

- The HRII uses a standard RV4 emp. I just talked to them.
- The F1 Rocket uses a modified (beefed up) RV4 emp.
- The newest F1/F4 kits have a new, custom design emp with a targeted design speed of...
Forum: RV-8/8A 06-09-2018, 04:44 PM
Replies: 13
Views: 2,968
Posted By Freemasm
Another thought

Hi-loks, if you have the room. Stronger than any rivet could possibly be. Let us know what you do.

Edit = (going by memory, here) Hi-loks are essentially close tolerance bolts typically used in...
Forum: RV General Discussion/News 06-08-2018, 02:03 PM
Replies: 1
Views: 793
Posted By Freemasm
RV-8 Emp kit (NIB), whatís it worth?

Have a New in Box RV-8 emp kit. Parts have been inventoried, thatís it. Stored in Air-conditioned bedroom. Building something else. What does VAF world think itís worth? Trying to determine a price...
Forum: RV General Discussion/News 06-03-2018, 03:48 PM
Replies: 7
Views: 1,367
Posted By Freemasm
I was told this several decades ago by someone I...

I was told this several decades ago by someone I trust. I’m waiting for some experts to reply here. In my ex-space industry days, every MS/NAS/AN/etc bolt had the marks on both ends verified at...
Forum: RV General Discussion/News 06-03-2018, 07:55 AM
Replies: 7
Views: 1,367
Posted By Freemasm
Out of curiosity

Look at the tail of the bolt. You should see a small indentation where a hardness test was done. You wonít see this test mark on regular ďcommercialĒ grade boots.
Forum: RV General Discussion/News 05-19-2018, 07:52 AM
Replies: 6
Views: 1,117
Posted By Freemasm
Obsolete Tribal knowledge?

Was this adopted for the early 0.016" aero surface skins? Would be a good bet, at least
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