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Search: Posts Made By: AA5BY
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Forum: Aerodynamics
03-21-2021, 06:56 AM
Replies: 10
Views: 751
Posted By AA5BY

Forty years ago, the best builder and flyer in...

Forty years ago, the best builder and flyer in our local club (an engineer by trade) made a simple comment. If you really want a plane to fly well, provide it with the ability to adjust the stab....
Forum: Aerodynamics
03-19-2021, 09:05 AM
Replies: 10
Views: 751
Posted By AA5BY

I enjoyed each of the replies. Much of my reason...

I enjoyed each of the replies. Much of my reason for the post is my recent giant scale build of what I call an Ein-stick-er (a cross between a stick and an Eindecker) uses the planform of the 30cc...
Forum: Aerodynamics
03-18-2021, 09:55 AM
Replies: 10
Views: 751
Posted By AA5BY

Effects of out of trim control surfaces

I've recently completed a build that incorporated independent incidence adjusters for each of the wing panels. It now as eleven flights with adjustments made between the flights. The maiden flight...
Forum: Kit Building
11-22-2020, 08:48 AM
Replies: 1,673
Views: 150,170
Posted By AA5BY

Vincent... Mike pointed out this build effort...

Vincent... Mike pointed out this build effort and I've looked through a good bit of it and you are certainly to be commended for the excellent craftsmanship, patience, and commitment. Thanks for...
Forum: Gas Engines
11-14-2019, 05:46 AM
Replies: 221
Views: 58,645
Posted By AA5BY

I think the ball goes in first and then the...

I think the ball goes in first and then the spring.
03-25-2018, 10:28 AM
Replies: 21
Views: 1,615
Posted By AA5BY

When updating from a 7202 to the XG-8... things...

When updating from a 7202 to the XG-8... things were very cryptic and believe the manual expected a more current understanding. I muddled through it but and at times struggled and asked questions as...
Forum: Gas Engines
03-16-2018, 07:02 AM
Replies: 2,224
Views: 357,194
Posted By AA5BY

Adding to what Brian said, a gotcha with these...

Adding to what Brian said, a gotcha with these small gas engines on muffler pressure is staying with a fuel tank sized for glow. Large tanks produce larger swings in mixture settings and should be...
Forum: Gas Engines
03-15-2018, 07:06 PM
Replies: 2,224
Views: 357,194
Posted By AA5BY

I'm running four Evolutions with muffler...

I'm running four Evolutions with muffler pressure, 2-10cc, 1-15cc & 1-20cc and they are all running fine. I'm also running three Saito glow engines converted to gas, a 90TS, a 1.25a, and a 182T all...
Forum: Gas Engines
03-14-2018, 06:07 AM
Replies: 2,224
Views: 357,194
Posted By AA5BY

Jeff... You didn't outline the specific reason...

Jeff... You didn't outline the specific reason the engine was run only once so it is hard to say if you should upgrade the carb.

I've two of the vs 1 engines and haven't had problems so continue...
Forum: Gas Engines
03-13-2018, 06:21 AM
Replies: 2,224
Views: 357,194
Posted By AA5BY

Yep... as Al says, the differing mountings can...

Yep... as Al says, the differing mountings can resonate differently.
03-13-2018, 02:22 AM
Replies: 17
Views: 2,439
Posted By AA5BY

Thanks Jim for the good information on dealing...

Thanks Jim for the good information on dealing with airflow and cowls. I did not get to the field yesterday but did test run the engine at home... running it for a 6oz tank of fuel for 33 minutes...
03-12-2018, 08:09 AM
Replies: 17
Views: 2,439
Posted By AA5BY

The intake manifolds have rubber sections but the...

The intake manifolds have rubber sections but the carb bolts flat against the back of the engine housing and wouldn't move much when removing the mounting screws... but I did get a thin layer of mica...
03-11-2018, 07:29 AM
Replies: 17
Views: 2,439
Posted By AA5BY

Typical to when engaging in bragging... one gets...

Typical to when engaging in bragging... one gets his comumpence.

After four test flights with the engine, the cowl was installed and two more flights made yesterday. All was well with the first...
03-10-2018, 03:59 AM
Replies: 17
Views: 2,439
Posted By AA5BY

A virtue of spark ignition is the timing is fixed...

A virtue of spark ignition is the timing is fixed (excepting the desired rpm advance), whereas glow ignition has the timing influenced by mixture where a lean mixture can cause the timing to advance...
03-04-2018, 09:07 PM
Replies: 17
Views: 2,439
Posted By AA5BY

Jim... good thoughts. Converting to gas has...

Jim... good thoughts.

Converting to gas has pros and cons with the greatest negative the degradation of power. I've now flown the 1/5 World Models Cub powered by the 90TS on gas running a MAS...
02-25-2018, 07:39 AM
Replies: 17
Views: 2,439
Posted By AA5BY

Mine would sometimes drop a cylinder so it was...

Mine would sometimes drop a cylinder so it was add on board glow or spark. If you think you may want a timing hub I'd be happy to provide one.
02-24-2018, 08:33 PM
Replies: 17
Views: 2,439
Posted By AA5BY

Am fortunate to have a lathe. Have been buying...

Am fortunate to have a lathe. Have been buying the ignitions, plugs and opto switches from Agape Racing.

Do you have an engine your thinking of converting to spark or gas?
02-24-2018, 06:23 PM
Replies: 17
Views: 2,439
Posted By AA5BY

The timing hub is standard fare... a turned...

The timing hub is standard fare... a turned collar with a set screw and magnet mounted in it. The pickup mount took a bit more thought but was mounted to a U bracket to the engine mount.
02-23-2018, 07:35 PM
Replies: 17
Views: 2,439
Posted By AA5BY

Saito 90-TS conversion to gas

With a little trepidation I decided to add spark ignition to my Saito 90-TS. I had the ignition because I'd wrongly bought the wrong version for the Saito 182T previous conversion which was an odd...
Forum: Kit Building
02-11-2018, 08:02 AM
Replies: 135
Views: 26,082
Posted By AA5BY

Tom... building interest has diminished but is...

Tom... building interest has diminished but is not gone. You are proof. Enjoy.
01-08-2018, 07:41 PM
Replies: 26
Views: 3,012
Posted By AA5BY

I would agree that one of the criteria of a...

I would agree that one of the criteria of a conversion to gas is a good cooling environment.

A few more thoughts. The cost of the conversion was right at $90 (ignition, plug and opto switch). 48...
01-07-2018, 07:44 AM
Replies: 26
Views: 3,012
Posted By AA5BY

Conversion Report

Too often follow up reports are not given, leaving questions about the outcome of some endeavor.

The Saito 125a gas conversion has now logged a total of 48 ten min flights and continues to perform...
Forum: Gas Engines
11-09-2017, 07:06 PM
Replies: 1,822
Views: 274,273
Posted By AA5BY

The only thing I needed to do beyond installing...

The only thing I needed to do beyond installing the ignition is to provide a throttle servo speed slow down.
Forum: Gas Engines
11-08-2017, 12:27 PM
Replies: 1,822
Views: 274,273
Posted By AA5BY

Not so far.

Not so far.
Forum: Gas Engines
11-08-2017, 04:18 AM
Replies: 1,822
Views: 274,273
Posted By AA5BY

I've now 43 flights (7 hrs) on a Saito 125a...

I've now 43 flights (7 hrs) on a Saito 125a converted to gas, using the stock carb. Running 20:1 fuel mix.
Showing results 1 to 25 of 500
 


 
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