Search: Posts Made By: grosbeak
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Forum: Giant Scale Aircraft - General 05-08-2015, 05:12 AM
Replies: 7
Views: 705
Posted By grosbeak
Hey Barry, I have a single bolt adapter (SBA) for...

Hey Barry, I have a single bolt adapter (SBA) for my RCGF 32 and I like it fine. I bought one for the DLE 30 and it sheared the bolts and threw the prop during its maiden flight.
...
Forum: Giant Scale Aircraft - General 05-07-2015, 10:04 AM
Replies: 7
Views: 705
Posted By grosbeak
Prop hub void - would you fill for 4-bolt drilling?

I have a DLE 30 with a 4-bolt propeller hub. The hub of the propeller I would most like to use - a Master Airscrew 16 x 8 3-blade - is not solid in the back:


...
Forum: Kit Building 04-25-2015, 04:55 AM
Replies: 434
Views: 14,512
Posted By grosbeak
Thanks for the tips Bobby... For a while when I...

Thanks for the tips Bobby... For a while when I was learning I got pretty good at remembering to use the rudder. Guess it's time to go back to basics and put bank and yank back on the shelf where it...
Forum: Kit Building 04-22-2015, 06:27 PM
Replies: 434
Views: 14,512
Posted By grosbeak
No worries, Larry. Good points all - I don't know...

No worries, Larry. Good points all - I don't know where the VVRC bolts come from or if I'd be able to source better ones. And I'm aware that at one point many people felt that everything made in...
Forum: Kit Building 04-22-2015, 03:06 AM
Replies: 434
Views: 14,512
Posted By grosbeak
Runout test #3 - on a smooth portion of the...

Runout test #3 - on a smooth portion of the crankshaft (just barely).


DLE 30 - runoff measured on smooth crankshaft (https://youtu.be/IUbWQUOCLg8)


The dial indicator is steady except when...
Forum: Kit Building 04-21-2015, 05:22 PM
Replies: 434
Views: 14,512
Posted By grosbeak
Dial indicator on crankshaft. ...

Dial indicator on crankshaft.


https://farm9.staticflickr.com/8765/16606594164_fb0809600a_c.jpg (https://flic.kr/p/rit8T3)




Pointer on threaded shaft. I think this affected accuracy...
Forum: Kit Building 04-21-2015, 05:18 PM
Replies: 434
Views: 14,512
Posted By grosbeak
Pulled the hub tonight. Crankshaft nut...

Pulled the hub tonight.


Crankshaft nut removed.


https://farm8.staticflickr.com/7665/17041488840_7d7f557654_c.jpg (https://flic.kr/p/rXU5V7)
Forum: Kit Building 04-21-2015, 02:56 AM
Replies: 434
Views: 14,512
Posted By grosbeak
I am not a machinist or engineer, but this -...

I am not a machinist or engineer, but this - 0.004" - looks to me like a bent crank.


https://youtu.be/nYN0fx3IRV4
Forum: Kit Building 04-21-2015, 02:56 AM
Replies: 434
Views: 14,512
Posted By grosbeak
Unfortuately I did not. Whatever...

Unfortuately I did not.



Whatever Valley View RC provided with the prop adapter - I have no idea.



I do have my suspicions... and thanks!
Forum: Kit Building 04-20-2015, 04:51 AM
Replies: 434
Views: 14,512
Posted By grosbeak
I've usually got a pretty good feel for that...

I've usually got a pretty good feel for that stuff but anything is possible...
Forum: Kit Building 04-20-2015, 12:35 AM
Replies: 434
Views: 14,512
Posted By grosbeak
The maiden flight was yesterday. The best way to...

The maiden flight was yesterday. The best way to summarize it is, "All's well that ends well."


The plane taxied well and responded well to rudder-controlled steering on the ground. In position...
Forum: Kit Building 04-16-2015, 09:07 AM
Replies: 434
Views: 14,512
Posted By grosbeak
:D

:D
Forum: Kit Building 04-15-2015, 08:58 AM
Replies: 434
Views: 14,512
Posted By grosbeak
Taxi test - should have thought of that! I only...

Taxi test - should have thought of that! I only fly off grass, and it's a lot smoother than my bumpy, clay-filled yard...

Hopefully next weekend or the one after!
Forum: Kit Building 04-12-2015, 05:43 PM
Replies: 434
Views: 14,512
Posted By grosbeak
Nice day to fire up the engine for the first time...

Nice day to fire up the engine for the first time (first time for me - I bought it used). Tethered on the table outside.


https://farm9.staticflickr.com/8788/16918073477_b58312be03_c.jpg...
Forum: Kit Building 04-12-2015, 12:26 PM
Replies: 434
Views: 14,512
Posted By grosbeak
Hey Richard, The printer I am using is...

Hey Richard,

The printer I am using is nothing special - it's an Epson NX420 MFD that's several years old. I am using the Testors 8.5" x 5.5" clear decal paper...
Forum: Kit Building 04-11-2015, 05:19 PM
Replies: 434
Views: 14,512
Posted By grosbeak
Ignition cutoff enabled - here you can see the...

Ignition cutoff enabled - here you can see the exterior red LED and the green LED on the cutoff transmitter module inside.

...
Forum: Kit Building 04-11-2015, 04:04 PM
Replies: 434
Views: 14,512
Posted By grosbeak
Ignition and receiver switch decals. ...

Ignition and receiver switch decals.


https://farm9.staticflickr.com/8725/16494415043_c4a6a5c550_c.jpg (https://flic.kr/p/r8ybWg)




A little website plug under the my logo and a maple leaf...
Forum: Kit Building 04-11-2015, 03:58 PM
Replies: 434
Views: 14,512
Posted By grosbeak
I wanted some decals to complement the graphics...

I wanted some decals to complement the graphics I've put on the plane. I won't use them all for this project but you can only print to the sheet once. Three coats of clear Krylon should seal them...
Forum: Kit Building 04-11-2015, 03:50 PM
Replies: 434
Views: 14,512
Posted By grosbeak
Prop in the balancer - thanks to britcharming...

Prop in the balancer - thanks to britcharming (https://www.youtube.com/channel/UClDaDxrfKw7YXKafxxWGIfw) on YouTube for his video on balancing 3-blade propellers...
Forum: Tips & Techniques 04-10-2015, 09:25 AM
Replies: 32
Views: 2,684
Posted By grosbeak
Speed, I do indeed feel that the specified CG is...

Speed, I do indeed feel that the specified CG is just a starting point. I did a LOT of tuning with the SBach to get it right. But you do need a starting point, agreed? It's got to be in the ballpark...
Forum: Tips & Techniques 04-09-2015, 07:05 AM
Replies: 32
Views: 2,684
Posted By grosbeak
Take another look... CG(s) is the specified CG -...

Take another look... CG(s) is the specified CG - that can't come from the calculation but must be provided as input, from the manual, 25-33% estimate, WAG, whatever. CG(a) is the ACTUAL CG as...
Forum: Kit Building 04-07-2015, 07:10 AM
Replies: 125
Views: 9,126
Posted By grosbeak
AMR Trainer 26. Of course, it's the ONLY kit I've...

AMR Trainer 26. Of course, it's the ONLY kit I've ever built, so it's also the BEST kit I've ever built!

The laser cut parts are very well done and the kit goes together nicely. From the...
Forum: Kit Building 04-06-2015, 07:58 AM
Replies: 434
Views: 14,512
Posted By grosbeak
Time for some propeller painting. I'm going to...

Time for some propeller painting. I'm going to use the cream colour that closely matches the base layer of MonoKote.


Masked up.

...
Forum: Tips & Techniques 04-06-2015, 07:31 AM
Replies: 32
Views: 2,684
Posted By grosbeak
CG calculation by weight

I like to calculate the CG of my tail draggers by weight, and I have created a new and simplified version of the spreadsheet to do so. All credit for the method I use goes to Tom Hastie's article...
Forum: Kit Building 04-03-2015, 07:33 PM
Replies: 434
Views: 14,512
Posted By grosbeak
Two holes are drilled; one through each pilot...

Two holes are drilled; one through each pilot hole.


https://farm9.staticflickr.com/8716/17024998661_c8255e4280_z.jpg (https://flic.kr/p/rWryXF)




Sides flattened with a file.
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