old timers look here must be 50+ years only
#1229
#1230
Maybe I have posted this times before, but here is a real trick for a couple engines.
1, Fox .29,.35,.40 engines for CL. Remove the Fox needle valve assembly, and replace with either of an O.S> CL NV or an Enya, same. Be sure that the rear hole in the NV is JUST out of sight facing rear. OS and Enya are about same, with ONE (1) hole. That hole should be facing BACK and JUST out of sight. On the FOX NV, if you must use it, be sure for stunt flying the rear hole is same as above, just out of sight. The front hole will then be facing front and create some very good (or not good ) BURPS in most aerobatic maneuvers. I found the Fox CL Stunt .40 to be equal to any other CL Stunt engine if given at least 3 hours on the work-bench, then an hour on the model. All my competition stunt flying was using Fox Fuel for fox engines. You may need some small washers to center the NV in the hole. Use 'em!
Later on when Fox Fuel was not available I took standard Fuels to make a decent FOX engine fuel.
64 OZ. (1/2 gal) of standard 10% nitro / and 18% oil. Add 32 Oz. (quart) of 5% Nitro and 16% oil. Add 14% castor oil. This results in about 110 OZ. fuel, with 7.8% Nitro, 27% oil > being 56% Castor and 44% Synthetic. That's about close to it will keep a Fox running well for CL Stunt. A Fox engine needs a couple of hours on the
stand prior to flying.
For all those old Testor's McCoy red and blue head engines, they were good but short-lived. One secrete that worked well if one really knew how to do it was:
After some good flying time and they got rather difficult to finger start do this" Prop size 9" diameter, 5-6" pitch. Use a rat-race setting with 10-15% oil fuel, and needle it to maximum. Take off an be ready to NOT get too much round and round until you know it is really leaning out. Let it go as fast as it will. (might have to do some inverted but best if then "RAT-RACE" speed is maintained.) When it stops it will be smoking a bit if everything worked. You will find that the heat swelled and hardened the piston. Once it cools down, the engine will be very quick to start, runs better than you will have ever known, and will last a long time. This came to me about speed engines from a great speed CL flier. SWELL THE PISTON! NO, NOT for ringed engines, just lapped pistons!!! It works!
Any of you guys ever fly the Grey McCoys built around 1971-73 era. Very powerful, but came out at the wrong time, built by Testors up near Rockford, IL. They were good RC engines, but the rings were not tight and difficult to start, especially by flipping. As a rather good CL Stunt Man that owned a Hobby shop back then, Testors pushed on me to fly a pre-production one at the NATs in Glenview. I removed my fantastic George Aldrich rebuilt Super Tigre. 40 and replaced that with one of these new "McCoy Testors". I got in one good test flight the day before and one early before my first flight at Glenview. That first morning flight was a good flight, in the top 5. The 2nd official was going great, and I was drawing a crowd around the fence. Then came the UN-GREAT! For some reason the engine flamed into Rat-Race lean and I was over-time by at least 2 minutes, negating my 4-leaf clover, the landing, and pattern-points. I tried every maneuver I knew to shut-'er down, but was out of the placing, no chance for the top-ten.
Needless to say I did not give a good review of that engine. OK for RC but not for CL Stunt. If you have one, you might like it. I flew one, a 35, in a RC Trainer and it was OK by all standards. They never lasted long in the front-lines. I'm sure there is some out in the world, but I do not have one. I think it was actually made by K&B, had all the parts but I have no recall of what Testor's finally did with the design.
Ain't RC History GREAT? ........
1, Fox .29,.35,.40 engines for CL. Remove the Fox needle valve assembly, and replace with either of an O.S> CL NV or an Enya, same. Be sure that the rear hole in the NV is JUST out of sight facing rear. OS and Enya are about same, with ONE (1) hole. That hole should be facing BACK and JUST out of sight. On the FOX NV, if you must use it, be sure for stunt flying the rear hole is same as above, just out of sight. The front hole will then be facing front and create some very good (or not good ) BURPS in most aerobatic maneuvers. I found the Fox CL Stunt .40 to be equal to any other CL Stunt engine if given at least 3 hours on the work-bench, then an hour on the model. All my competition stunt flying was using Fox Fuel for fox engines. You may need some small washers to center the NV in the hole. Use 'em!
Later on when Fox Fuel was not available I took standard Fuels to make a decent FOX engine fuel.
64 OZ. (1/2 gal) of standard 10% nitro / and 18% oil. Add 32 Oz. (quart) of 5% Nitro and 16% oil. Add 14% castor oil. This results in about 110 OZ. fuel, with 7.8% Nitro, 27% oil > being 56% Castor and 44% Synthetic. That's about close to it will keep a Fox running well for CL Stunt. A Fox engine needs a couple of hours on the
stand prior to flying.
For all those old Testor's McCoy red and blue head engines, they were good but short-lived. One secrete that worked well if one really knew how to do it was:
After some good flying time and they got rather difficult to finger start do this" Prop size 9" diameter, 5-6" pitch. Use a rat-race setting with 10-15% oil fuel, and needle it to maximum. Take off an be ready to NOT get too much round and round until you know it is really leaning out. Let it go as fast as it will. (might have to do some inverted but best if then "RAT-RACE" speed is maintained.) When it stops it will be smoking a bit if everything worked. You will find that the heat swelled and hardened the piston. Once it cools down, the engine will be very quick to start, runs better than you will have ever known, and will last a long time. This came to me about speed engines from a great speed CL flier. SWELL THE PISTON! NO, NOT for ringed engines, just lapped pistons!!! It works!
Any of you guys ever fly the Grey McCoys built around 1971-73 era. Very powerful, but came out at the wrong time, built by Testors up near Rockford, IL. They were good RC engines, but the rings were not tight and difficult to start, especially by flipping. As a rather good CL Stunt Man that owned a Hobby shop back then, Testors pushed on me to fly a pre-production one at the NATs in Glenview. I removed my fantastic George Aldrich rebuilt Super Tigre. 40 and replaced that with one of these new "McCoy Testors". I got in one good test flight the day before and one early before my first flight at Glenview. That first morning flight was a good flight, in the top 5. The 2nd official was going great, and I was drawing a crowd around the fence. Then came the UN-GREAT! For some reason the engine flamed into Rat-Race lean and I was over-time by at least 2 minutes, negating my 4-leaf clover, the landing, and pattern-points. I tried every maneuver I knew to shut-'er down, but was out of the placing, no chance for the top-ten.
Needless to say I did not give a good review of that engine. OK for RC but not for CL Stunt. If you have one, you might like it. I flew one, a 35, in a RC Trainer and it was OK by all standards. They never lasted long in the front-lines. I'm sure there is some out in the world, but I do not have one. I think it was actually made by K&B, had all the parts but I have no recall of what Testor's finally did with the design.
Ain't RC History GREAT? ........
Last edited by Hossfly; 03-15-2015 at 11:07 AM. Reason: add item
#1231
Maybe I have posted this times before, but here is a real trick for a couple engines.
1. Fox .29,.35,.40 engines for CL. Remove the Fox needle valve assembly, and replace with either of an OS CL NV or an Enya, same. Be sure that the rear hole in the NV is JUST out of sight facing rear. OS and Enya are about same, with ONE (1) hole. That hole should be facing BACK and JUST out of sight.
1. Fox .29,.35,.40 engines for CL. Remove the Fox needle valve assembly, and replace with either of an OS CL NV or an Enya, same. Be sure that the rear hole in the NV is JUST out of sight facing rear. OS and Enya are about same, with ONE (1) hole. That hole should be facing BACK and JUST out of sight.
On the FOX NV, if you must use it, be sure for stunt flying the rear hole is same as above, just out of sight. The front hole will then be facing front and create some very good (or not good ) BURPS in most aerobatic maneuvers. [...] You may need some small washers to center the NV in the hole. Use 'em!
For all those old Testor's McCoy red and blue head engines, they were good but short-lived. One secrete that worked well if one really knew how to do it was:
After some good flying time and they got rather difficult to finger start do this" Prop size 9" diameter, 5-6" pitch. Use a rat-race setting with 10-15% oil fuel, and needle it to maximum. Take off an be ready to NOT get too much round and round until you know it is really leaning out. Let it go as fast as it will. (might have to do some inverted but best if then "RAT-RACE" speed is maintained.) When it stops it will be smoking a bit if everything worked. You will find that the heat swelled and hardened the piston. Once it cools down, the engine will be very quick to start, runs better than you will have ever known, and will last a long time. This came to me about speed engines from a great speed CL flier. SWELL THE PISTON! NO, NOT for ringed engines, just lapped pistons!!! It works!
After some good flying time and they got rather difficult to finger start do this" Prop size 9" diameter, 5-6" pitch. Use a rat-race setting with 10-15% oil fuel, and needle it to maximum. Take off an be ready to NOT get too much round and round until you know it is really leaning out. Let it go as fast as it will. (might have to do some inverted but best if then "RAT-RACE" speed is maintained.) When it stops it will be smoking a bit if everything worked. You will find that the heat swelled and hardened the piston. Once it cools down, the engine will be very quick to start, runs better than you will have ever known, and will last a long time. This came to me about speed engines from a great speed CL flier. SWELL THE PISTON! NO, NOT for ringed engines, just lapped pistons!!! It works!
Any of you guys ever fly the Grey McCoys built around 1971-73 era. Very powerful, but came out at the wrong time, built by Testors up near Rockford, IL. They were good RC engines, but the rings were not tight and difficult to start, especially by flipping. As a rather good CL Stunt Man that owned a Hobby shop back then, Testors pushed on me to fly a pre-production one at the NATs in Glenview. I removed my fantastic George Aldrich rebuilt Super Tigre. 40 and replaced that with one of these new "McCoy Testors". I got in one good test flight the day before and one early before my first flight at Glenview. That first morning flight was a good flight, in the top 5. The 2nd official was going great, and I was drawing a crowd around the fence. Then came the UN-GREAT! For some reason the engine flamed into Rat-Race lean and I was over-time by at least 2 minutes, negating my 4-leaf clover, the landing, and pattern-points. I tried every maneuver I knew to shut-'er down, but was out of the placing, no chance for the top-ten.
Needless to say I did not give a good review of that engine. OK for RC but not for CL Stunt. If you have one, you might like it. I flew one, a 35, in a RC Trainer and it was OK by all standards. They never lasted long in the front-lines. I'm sure there is some out in the world, but I do not have one. I think it was actually made by K&B, had all the parts but I have no recall of what Testor's finally did with the design. Ain't RC History GREAT? ........
Needless to say I did not give a good review of that engine. OK for RC but not for CL Stunt. If you have one, you might like it. I flew one, a 35, in a RC Trainer and it was OK by all standards. They never lasted long in the front-lines. I'm sure there is some out in the world, but I do not have one. I think it was actually made by K&B, had all the parts but I have no recall of what Testor's finally did with the design. Ain't RC History GREAT? ........
Last edited by GallopingGhostler; 03-16-2015 at 04:49 AM. Reason: Added Clarification.
#1232
My Feedback: (6)
Mike
#1233
Actually, Mike, my reasoning is along simpler lines. Midwest used to make a set of warbird RC planes in the .40's size that were stand off scale easy to build models, sort of like Walt Musciano's stand way off scale Scientific 1/2-A CL jobs. I was thinking the easy to build with slab fuselage sides and bottom. That's where my thinking comes from, although I know what you mean. There are a lot of fine plane plans out there if someone wants a closer to scale appearance. For me, I like the simplicity, sort of the Curtiss "Robinhood" model available some years back.
#1235
Interesting. I found an Enya NVA on E-Bay, think I'll give that a shot.
Do you mean the Testors Series 21 Black Head engines? Sorry to hear of your CL loss. Would have been better if they had given you the engine [at least a few weeks before] to try out prior to the contest. Then you could have had a chance to "debug" it or give it back to them with what issues you encountered.
Do you mean the Testors Series 21 Black Head engines? Sorry to hear of your CL loss. Would have been better if they had given you the engine [at least a few weeks before] to try out prior to the contest. Then you could have had a chance to "debug" it or give it back to them with what issues you encountered.
That engine was simply a somewhat re-incarnated K & B. The K & B .40 was NOT a CL stunt engine but was a fantastic Free Flight engine, and was a choice of some of the CL Carrier, etc. I won the 1978 USAF World-Wide FF Class C using one, and did same with it at the annual 1971 Chicago Aeronuts Free Flight annual contest at the Bong Field ( which never was finished) just west of Milwaukee. Those were about my last times in Competition Free Flight. RC was my thing since I owned a Hobby Shop back then. In the 1971 and '72 Nats at Chicago, my young sons gathered FF Trophies, but old Dad missed out!
#1236
Thread Starter
Well guys I guess I am just a plans junkie. Reading your text got me on the Outerzone site and true to form I did three downloads, Cant seem to help myself, the plans are so nice!
#1238
Thread Starter
#1240
Thread Starter
Yes, just try a download it's easy! select the download page for the plan you want and follow the instructions.
#1242
My Feedback: (49)
Hey anyone else here on RCU have a problem loading Web Pages (Supper Slow). When I click on the
"This thread is located at:"
It takes for ever to load and also when I hit (Post Quick Reply) it comes back with do u want to satay/leave the page. Any one else have these problems.
Don't mean to distract fromForum, but!!!!!!!!!!
#1243
Junior Member
Join Date: May 2006
Location: HANOVER,
PA
Posts: 1
Likes: 0
Received 0 Likes
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Hey Donny, My first RC plane was a rudder only MAMBO with a FOX .15 engine. my best RC RECEIVER was a transistor CG Single Channel. My flying Buddy and I would buy Ambroid glue by the Pint can. We would buy Butyrate dope using an old Laquer 1/2 can. at Thomasville Airport near YORK, PA. I Covered the wings of my planes with rayon bandanas from the 5 & 10 cent store using dope.
I also flew a high wing VANGUARD made by Guillow Co. powered by an .049 Golden Bee. I like to talk about old flying days !!
I also flew a high wing VANGUARD made by Guillow Co. powered by an .049 Golden Bee. I like to talk about old flying days !!
#1244
Thread Starter
#1245
Thread Starter
HoundDog
yes I have had the problem several times, I'm guessing the system has it hiccup moments, i just wait it out.
yes I have had the problem several times, I'm guessing the system has it hiccup moments, i just wait it out.
Last edited by donnyman; 03-18-2015 at 04:39 AM.
#1246
Thread Starter
Hey Donny, My first RC plane was a rudder only MAMBO with a FOX .15 engine. my best RC RECEIVER was a transistor CG Single Channel. My flying Buddy and I would buy Ambroid glue by the Pint can. We would buy Butyrate dope using an old Laquer 1/2 can. at Thomasville Airport near YORK, PA. I Covered the wings of my planes with rayon bandanas from the 5 & 10 cent store using dope.
I also flew a high wing VANGUARD made by Guillow Co. powered by an .049 Golden Bee. I like to talk about old flying days !!
I also flew a high wing VANGUARD made by Guillow Co. powered by an .049 Golden Bee. I like to talk about old flying days !!
You have arrived at the correct place to reminice....Welcome!
By the way plans for several sizes of the mambo are available free at the outerzone site.
Last edited by donnyman; 03-18-2015 at 05:07 AM.
#1247
Thing I like about Outerzone is not only do they have US plans, but plans from other countries including UK. I didn't know how many wonderful and historic plans were available, the old Frog, Keil-Kraft, from just about every European country. Also they have captured the now long gone Japanese OK Model Pilot and Royal kits of yesteryear.
And who'd think, this plan from 1964 is as up to date today as it was then:
http://www.outerzone.co.uk/plan_details.asp?ID=6412
And this one from 1955:
http://www.outerzone.co.uk/plan_details.asp?ID=6414
We see electric Strykers flying today, but one of these at the field would turn heads still.
And who'd think, this plan from 1964 is as up to date today as it was then:
http://www.outerzone.co.uk/plan_details.asp?ID=6412
And this one from 1955:
http://www.outerzone.co.uk/plan_details.asp?ID=6414
We see electric Strykers flying today, but one of these at the field would turn heads still.
#1248
Hey Donny, My first RC plane was a rudder only MAMBO with a FOX .15 engine. my best RC RECEIVER was a transistor CG Single Channel. My flying Buddy and I would buy Ambroid glue by the Pint can. We would buy Butyrate dope using an old Lacquer 1/2 can. at Thomasville Airport near YORK, PA. I Covered the wings of my planes with rayon bandanas from the 5 & 10 cent store using dope.
I also flew a high wing VANGUARD made by Guillow Co. powered by an .049 Golden Bee. I like to talk about old flying days !!
I also flew a high wing VANGUARD made by Guillow Co. powered by an .049 Golden Bee. I like to talk about old flying days !!
#1249
Thread Starter
The outerzone site is one of the places I go to fullfil my dreams though I may never get to assemble from these plans I do so much get a kick out of having them at my disposal to just gawk at.
What upset me was several plans I had previously payed for were there for free.
George H.
I think the site is located in the U.K. ............Womderful, just wonderful!
What upset me was several plans I had previously payed for were there for free.
George H.
I think the site is located in the U.K. ............Womderful, just wonderful!
Last edited by donnyman; 03-18-2015 at 05:25 AM.
#1250
Thread Starter
George H.
The 36" mambo had a fuselage built like a sherman tank and would lend itself to much lightening. It contained a lot of block balsa. the slab sides could use some lightening holes with no ill effect.
I am totally unaware of it's flight charateristics but I have seen them fly on rudder only and do some pretty good stunts. It's all in the thumbs.
The 36" mambo had a fuselage built like a sherman tank and would lend itself to much lightening. It contained a lot of block balsa. the slab sides could use some lightening holes with no ill effect.
I am totally unaware of it's flight charateristics but I have seen them fly on rudder only and do some pretty good stunts. It's all in the thumbs.
Last edited by donnyman; 03-18-2015 at 05:51 AM.