Welcome to Club SAITO !
11-22-2019, 01:55 PM
I was thinking I do have a RCM Navion project in the wings I was going to convert to retracts that was built for a .40 to .60 engine (plans show an old Fox .60). If the Saito .65 would fit the cowl it might make a good match.
11-22-2019, 01:59 PM
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Join Date: Dec 2001
Location: Colonial Beach, VA
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Age here is 69.4 B July 04, 1950
"73" is a telegrapher jargon used by old ham radio ops who still use Morse Code on the air. Also known as Continuous wave or "CW"
The numeric code is a small part of the abbreviations outlined in the Phillips Code (developed by telegrapher Walter P. Phillips). Like many other Morse Code abbreviations it has a certain "swing" or rhythm went sent. Dah Dah Di Di Dit Di Di Dit Dah Dah.
Instantly recognizable to Morse Code ops.
"The usage of "73" for such a purpose comes from the Phillips Code, originally devised in the era of telegraphs to speed up transmission of common messages by mapping them to numbers.
"73" mapped to "best regards" or "my compliments" and was intended as a general valediction for transmitted messages.
It is still used for that purpose today in morse code transmissions and often makes its way into everyday correspondence among hams as a form of jargon.
There is also "88" (which maps to "love and kisses") that sometimes takes the place of "73" for communications between affectionate parties."
"73" is a telegrapher jargon used by old ham radio ops who still use Morse Code on the air. Also known as Continuous wave or "CW"
The numeric code is a small part of the abbreviations outlined in the Phillips Code (developed by telegrapher Walter P. Phillips). Like many other Morse Code abbreviations it has a certain "swing" or rhythm went sent. Dah Dah Di Di Dit Di Di Dit Dah Dah.
Instantly recognizable to Morse Code ops.
"The usage of "73" for such a purpose comes from the Phillips Code, originally devised in the era of telegraphs to speed up transmission of common messages by mapping them to numbers.
"73" mapped to "best regards" or "my compliments" and was intended as a general valediction for transmitted messages.
It is still used for that purpose today in morse code transmissions and often makes its way into everyday correspondence among hams as a form of jargon.
There is also "88" (which maps to "love and kisses") that sometimes takes the place of "73" for communications between affectionate parties."
Gary I'll stop short of the 88 for you but put it all toward the engine, the Bible says that a man who has friends is rich. Mike, Jim, Jim W., Todd, Gary, Pete, Bruce and others. Any Saito I've received has been great and they come in a great pack job. Thanks all.
It's here.
11-22-2019, 02:09 PM
11-22-2019, 03:05 PM
Fine idea to start out conservatively with an unfamiliar powerplant You may, in time find a whole new respect for the little .65.
An old , late ham radio buddy of mine (K8BVJ, Jack, from the Fraser Club)?had an old, oil soaked Hog-Bipe that flew quite well with a very high time, well broken in, 65. Of course that is a fairly light wing load, high drag craft , not expected to fly like a P-51.
Just lately realizing how many of my flying friends were also ham radio operators. We forget it was hams who got the RC hobby off the ground. At one time, you needed a ham license to fly RC.
An old , late ham radio buddy of mine (K8BVJ, Jack, from the Fraser Club)?had an old, oil soaked Hog-Bipe that flew quite well with a very high time, well broken in, 65. Of course that is a fairly light wing load, high drag craft , not expected to fly like a P-51.
Just lately realizing how many of my flying friends were also ham radio operators. We forget it was hams who got the RC hobby off the ground. At one time, you needed a ham license to fly RC.
11-22-2019, 03:34 PM
Sizing 4 Strokes
How do you all select 4 stroke size for a vintage airframe, or visa versa? Older kits that have no 4 stroke recommendations.
I take the recommended 2 stroke size and multiply by 1.5 as a starting point. Seems to work well for the average sport flyer. If it's a slow lightweight high drag trainer airframe I may scale down the engine size from 1.5x. If it's a well built slippery airframe I may scale up the engine size several displacements. Same with 3D planes, I may scale up a size or two from 1.5x.
For 3d it's mostly about thrust (prop diameter)
For fast planes it's mostly about pitch speed (prop pitch)
For sport planes it's all about having a good balance between thrust and speed.
For trainers its all about not having too much thrust or speed, unless you don't mind seeing a flimsy trainer turn into a balsa cloud.
I take the recommended 2 stroke size and multiply by 1.5 as a starting point. Seems to work well for the average sport flyer. If it's a slow lightweight high drag trainer airframe I may scale down the engine size from 1.5x. If it's a well built slippery airframe I may scale up the engine size several displacements. Same with 3D planes, I may scale up a size or two from 1.5x.
For 3d it's mostly about thrust (prop diameter)
For fast planes it's mostly about pitch speed (prop pitch)
For sport planes it's all about having a good balance between thrust and speed.
For trainers its all about not having too much thrust or speed, unless you don't mind seeing a flimsy trainer turn into a balsa cloud.
11-22-2019, 05:06 PM
I think 1.5x 2 stroke displacement is conservative when selection a 4 stroke size for everything except flimsy floaters. My 6--7 lb 46 size sport and warbird planes fly ok with fa62 engines, wish I had 72s in them.
11-22-2019, 05:12 PM
Mount that 65 and throw it up!
11-22-2019, 05:28 PM
You talking about the 40 size GP Super Sportster? 4.75-5 lb. plane, semi symetrical airfoil, hersey bar wing, medium wing loading. I'd try the fa56, it's 3 oz. lighter than the 65 and makes almost as much power.
You had a 61 2 stroke on that?
You had a 61 2 stroke on that?
11-22-2019, 05:50 PM
Since buying and building one of the very first Kadet Seniors on engines ranging from an open rocker Saito 30 to a Saito 100, I have yet to make a cloud of balsa dust. Dirt cloud at ground level but they hold up well.
Seen more 3D planes blow up than practically any other type. They do not seem to like fast at all.
Favorite engine on the Sr Kadet was the Saito 62 that was on longer than any other during its 30 or so year career.
That Saito 65 however is a lot stronger than You may realize . It is also infinitively smoother and more durable than the 62. A very robust, sturdy workhorse.
Run it once and you will see what I mean!
Seen more 3D planes blow up than practically any other type. They do not seem to like fast at all.
Favorite engine on the Sr Kadet was the Saito 62 that was on longer than any other during its 30 or so year career.
That Saito 65 however is a lot stronger than You may realize . It is also infinitively smoother and more durable than the 62. A very robust, sturdy workhorse.
Run it once and you will see what I mean!
11-22-2019, 06:31 PM
Yep, control surface flutter can be real problem when trying to get speed out of a 3D plane. To save on weight and lower wing loading sometimes too many shortcuts were employed. Todays composite 3D planes can handle more speed than just a few years ago.
I've seen two Cadet Sr's turn into balsa clouds in the last few years. Both exploded on full throttle down lines in a loop. Both were ARFs, both had 55ax 2 strokes and both had pilots that over estimated the strength of the airframe. The wings are prone to flutter when pushed too hard.
I've not run a 65 or even seen one run in person. I do love the power to weight ratio of the 62 though. Crunchy has one of my fa62 rebuilds, I look forward to hearing his reaction when he test runs it. Last time I tested it produced 1.07 hp spinning an apc 12x6 at 10100 rpm. Very strong runner. Not as smooth as a 56 but not bad on vibes.
I've seen two Cadet Sr's turn into balsa clouds in the last few years. Both exploded on full throttle down lines in a loop. Both were ARFs, both had 55ax 2 strokes and both had pilots that over estimated the strength of the airframe. The wings are prone to flutter when pushed too hard.
I've not run a 65 or even seen one run in person. I do love the power to weight ratio of the 62 though. Crunchy has one of my fa62 rebuilds, I look forward to hearing his reaction when he test runs it. Last time I tested it produced 1.07 hp spinning an apc 12x6 at 10100 rpm. Very strong runner. Not as smooth as a 56 but not bad on vibes.
11-22-2019, 06:55 PM
I have zero experience with the ARF version of the Senior and infinite trust after thirty years with the KIT built of which I am speaking. I had often taken the Sr Kadet, KIT version up till it was near out of sight, shoved the stick forward in an extended five. Yank back hard and the plane, with its one piece wing shrugged it off every time .The airframe and the prop limit that dive speed well.
Care to pylon a 3D against my hot-rod, KIT built Senior? Could be worth a trip.
KIT built Kadet Sr bashed in to a 40 lookalike The OS 61 has been replaced with a YS 110 AC since this pic was taken.
Care to pylon a 3D against my hot-rod, KIT built Senior? Could be worth a trip.
KIT built Kadet Sr bashed in to a 40 lookalike The OS 61 has been replaced with a YS 110 AC since this pic was taken.
Last edited by Jesse Open; 11-22-2019 at 06:58 PM.
11-22-2019, 06:57 PM
11-22-2019, 07:02 PM
My Feedback: (1)
to add, that paint is fantastic!!
Jim
11-22-2019, 07:06 PM
11-22-2019, 07:08 PM
11-22-2019, 07:29 PM
My Feedback: (1)
Hmm, how do you think the new Saito .65 I just received would do on a Top Flite .60 size F4U Corsair? I have a partially built one in bad need of rework I traded for a Goldberg Anniversary Cub kit and a NIB ST .40. The Corsair came with Robart retracts, include valve and large tank, and Futaba servos installed for the flaps and ailerons. The original builder for some unknown reason stuck the air chuck for the retracts in the side of the fuselage, still scratching my head over that one. His wing sheeting sucked too. With all its warts it was still a great deal.
Whatever I decide it has to wait until Pinky Saito and the Pink' N Poke get into the air.
Side note: Four 50cc fliers started a new flying field 4 miles as the crow flies from house. The runway is 150' X 500' of grass and I have been invited to join them. 3 of them fly scale Warbirds, the fourth guy is a pattern flier. They are already AMA affiliated and registered with the FAA.
Whatever I decide it has to wait until Pinky Saito and the Pink' N Poke get into the air.
Side note: Four 50cc fliers started a new flying field 4 miles as the crow flies from house. The runway is 150' X 500' of grass and I have been invited to join them. 3 of them fly scale Warbirds, the fourth guy is a pattern flier. They are already AMA affiliated and registered with the FAA.
Jim
11-22-2019, 07:36 PM
My Feedback: (1)
buy a .50 size war bird, they have a span around 57, it should do around 100. you could buy a Great Planes PT-19
Jim
11-22-2019, 08:35 PM
My Feedback: (1)
LOL OK.
so find a set of plans for a ShoeString racer. I love mine. it flies just how I like a plane to fly. but I have to say that I would think it doesn't have the scale racing wing on it. but you could build and mount on it any type of wing you like
arf
Jim
so find a set of plans for a ShoeString racer. I love mine. it flies just how I like a plane to fly. but I have to say that I would think it doesn't have the scale racing wing on it. but you could build and mount on it any type of wing you like
arf
Jim