Extreme Flight 88" Yak - Build and Fly
#2851
My Feedback: (16)
Join Date: Mar 2005
Location: spring valley ,
CA
Posts: 1,309
Likes: 0
Received 0 Likes
on
0 Posts
RE: Extreme Flight 88" Yak - Build and Fly
[quote]ORIGINAL: diamondave
thanks for your input donnie, i am thinking the same, i will love this 88 but i want to keep my 80 in something slightly bigger, cant afford stepping up much more than that, if so i would look at comp arf's mx2, a buddy let me fly his with a 150, that was a sweet plane, tons better than my 2.3 extra from comparf, but no way i could spend 4-5g's to get a plane going, not while i am married anyway
The last 6 words of this post might be your problem or cure Just kidding
#2852
Senior Member
My Feedback: (12)
Join Date: Jul 2004
Location: Columbus,
OH
Posts: 128
Likes: 0
Received 0 Likes
on
0 Posts
RE: Extreme Flight 88" Yak - Build and Fly
Well guys,
I checked everything that I could.....
The Servos all work ( the expensive ones anyhow, not the throttle ), the engine is going back to Scott for repair. It actually looks almost ok cept for a dent on the muffler. The mpi regulator was dead.
Perhaps this was the culprit afterall.
It is so hard to tell anything about it.
I am still very nervous about putting the Dx 7 in something else though, because of the reboot time, but maybe I will get over that in time.
Thanks guys- I didn't know the mpi regs were that bad. I use them in my high performance sailplanes with 2 cell fromeco packs and never had a problem. I guess I will re evaluate that though!
Anyone know of reliable SMALL regulators that will fit into a sailplane fuse?
Chip
I checked everything that I could.....
The Servos all work ( the expensive ones anyhow, not the throttle ), the engine is going back to Scott for repair. It actually looks almost ok cept for a dent on the muffler. The mpi regulator was dead.
Perhaps this was the culprit afterall.
It is so hard to tell anything about it.
I am still very nervous about putting the Dx 7 in something else though, because of the reboot time, but maybe I will get over that in time.
Thanks guys- I didn't know the mpi regs were that bad. I use them in my high performance sailplanes with 2 cell fromeco packs and never had a problem. I guess I will re evaluate that though!
Anyone know of reliable SMALL regulators that will fit into a sailplane fuse?
Chip
#2853
Senior Member
My Feedback: (24)
RE: Extreme Flight 88" Yak - Build and Fly
ORIGINAL: chipwill
Well guys,
I checked everything that I could.....
The Servos all work ( the expensive ones anyhow, not the throttle ), the engine is going back to Scott for repair. It actually looks almost ok cept for a dent on the muffler. The mpi regulator was dead.
Perhaps this was the culprit afterall.
It is so hard to tell anything about it.
I am still very nervous about putting the Dx 7 in something else though, because of the reboot time, but maybe I will get over that in time.
Thanks guys- I didn't know the mpi regs were that bad. I use them in my high performance sailplanes with 2 cell fromeco packs and never had a problem. I guess I will re evaluate that though!
Anyone know of reliable SMALL regulators that will fit into a sailplane fuse?
Chip
Well guys,
I checked everything that I could.....
The Servos all work ( the expensive ones anyhow, not the throttle ), the engine is going back to Scott for repair. It actually looks almost ok cept for a dent on the muffler. The mpi regulator was dead.
Perhaps this was the culprit afterall.
It is so hard to tell anything about it.
I am still very nervous about putting the Dx 7 in something else though, because of the reboot time, but maybe I will get over that in time.
Thanks guys- I didn't know the mpi regs were that bad. I use them in my high performance sailplanes with 2 cell fromeco packs and never had a problem. I guess I will re evaluate that though!
Anyone know of reliable SMALL regulators that will fit into a sailplane fuse?
Chip
John
#2854
Senior Member
Join Date: Jan 2003
Location: Buford,
GA
Posts: 779
Likes: 0
Received 0 Likes
on
0 Posts
RE: Extreme Flight 88" Yak - Build and Fly
Dave, I will try my best to get yours out today.
As of this morning we have 6 yellow/black and 17 red/white/black/silver Yaks left from this shipment.
Guys, I'm sorry for the loss of your planes. A local flyer lost his last night due to some sort of radio issue. That's just sickening[:'(].
As of this morning we have 6 yellow/black and 17 red/white/black/silver Yaks left from this shipment.
Guys, I'm sorry for the loss of your planes. A local flyer lost his last night due to some sort of radio issue. That's just sickening[:'(].
#2856
Senior Member
Join Date: May 2004
Location: salinas,
CA
Posts: 192
Likes: 0
Received 0 Likes
on
0 Posts
RE: Extreme Flight 88" Yak - Build and Fly
OOOhhhhhh there Dave you're in for a treat once you get that bad boy. This plane is the best thing since sliced bread
#2857
My Feedback: (1)
Join Date: Jul 2004
Location: san leandro,
CA
Posts: 65
Likes: 0
Received 0 Likes
on
0 Posts
RE: Extreme Flight 88" Yak - Build and Fly
Daimondave did you get the black and yellow? It's so perrty, nice simple lines, not all busy like other planes.
I think the stock landing gear will also exaggerate a bounce on landing, I'm also thinking about a CF gear, thinking about the RC supergear.[sm=72_72.gif]
I think the stock landing gear will also exaggerate a bounce on landing, I'm also thinking about a CF gear, thinking about the RC supergear.[sm=72_72.gif]
#2860
Senior Member
My Feedback: (3)
Join Date: Apr 2004
Location: Coffeyville,
KS
Posts: 1,228
Likes: 0
Received 0 Likes
on
0 Posts
RE: Extreme Flight 88" Yak - Build and Fly
I like the way this plane floats in for landing.......I'm also flying off grass and haven't had any landing gear issues YET.
Compared to my Edge and TOC1 Yak.....this plane lands like a dream.
Compared to my Edge and TOC1 Yak.....this plane lands like a dream.
#2861
Senior Member
Join Date: May 2003
Location: OCOEE, FL
Posts: 351
Likes: 0
Received 0 Likes
on
0 Posts
RE: Extreme Flight 88" Yak - Build and Fly
I'm trying to catchup reading all these posts! Good and helpful thread!! (at page 70 now. )
My B&W should ship in a week or so. - in the mean time, I was wondering if someone would measure the center hub portion of the cowling (baffle) vane for me. Judging by Mokken's admitted 4.5" spinner, it appears (from the back of his truckbed) to be 5.5" possibly? I'm seriously considering matching that diameter for my spinner and going with a three bladed prop. Will be bolting a DA50R w/ canister up front.
Comments - suggestions?? (I'm sure there is some opposition and collaboration in this effort and eager to hear both!)
Thanks for your help!
My B&W should ship in a week or so. - in the mean time, I was wondering if someone would measure the center hub portion of the cowling (baffle) vane for me. Judging by Mokken's admitted 4.5" spinner, it appears (from the back of his truckbed) to be 5.5" possibly? I'm seriously considering matching that diameter for my spinner and going with a three bladed prop. Will be bolting a DA50R w/ canister up front.
Comments - suggestions?? (I'm sure there is some opposition and collaboration in this effort and eager to hear both!)
Thanks for your help!
#2862
Senior Member
Join Date: Jan 2002
Location: Morton Grove,
IL
Posts: 285
Likes: 0
Received 0 Likes
on
0 Posts
RE: Extreme Flight 88" Yak - Build and Fly
If I understand the question right, it measures 4 5/8.
Thats the diameter of the center round area inside the vanes.
Mike
Thats the diameter of the center round area inside the vanes.
Mike
#2863
Senior Member
Join Date: May 2003
Location: OCOEE, FL
Posts: 351
Likes: 0
Received 0 Likes
on
0 Posts
RE: Extreme Flight 88" Yak - Build and Fly
Interesting and thanks for the reply! ( now I'm working both ends of the huge message thread!)
Look at the cowl pics on page 68. I believe he said his spinner was told to be 4.5". What gives?
(I would post his jpg picture but - can't get pictures to load; possibly a MAC conflict? I keep getting "error saving file to disk" message)
Look at the cowl pics on page 68. I believe he said his spinner was told to be 4.5". What gives?
(I would post his jpg picture but - can't get pictures to load; possibly a MAC conflict? I keep getting "error saving file to disk" message)
#2864
Senior Member
My Feedback: (42)
Join Date: Jan 2004
Location: Ormond Beach, FL
Posts: 2,422
Likes: 0
Received 0 Likes
on
0 Posts
RE: Extreme Flight 88" Yak - Build and Fly
So the closest you might match it would be a 4 1/2 inch spinner. There should be no doubt that a 3blade on that setup would fly it. The question would be the performance level on a muffler or cannister. With the extra power of a pipe matched to a 3 blader my guess is that performance would do all you want from it. JMO
Come on over some time to the Daytona club. Especially after your plane is done, we could get a squadron of Yaks on the line[8D]
Come on over some time to the Daytona club. Especially after your plane is done, we could get a squadron of Yaks on the line[8D]
#2865
Senior Member
My Feedback: (3)
Join Date: Apr 2004
Location: Coffeyville,
KS
Posts: 1,228
Likes: 0
Received 0 Likes
on
0 Posts
RE: Extreme Flight 88" Yak - Build and Fly
I'm using a 4" spinner......I think the only problem with using a 3 blade prop is having enough blade sticking out from around the cowl for prop wash.
#2866
Senior Member
Thread Starter
My Feedback: (51)
Join Date: Jul 2002
Location: Ashland, KY
Posts: 5,833
Likes: 0
Received 0 Likes
on
0 Posts
RE: Extreme Flight 88" Yak - Build and Fly
Guys...
Horizon does offer a special unit that prevents the voltage from dropping too low... it's basically a capacitor I think... I just plugs into an open port 9or "Y" I suppose)
It's always better to have a strong electrical system from the get go... but this should prevent the reset (not that any of htese were related to the reset)
I am soon going to be doign some tests on the A123 packs which supposed lay out to 6.8 volts or so unregged... so they might be a great choice....
The prob with unregge'd receivers is the servos... some servos are VERY jiiter and unstable on 7.2+ volts (8 volts fresh charge) and though the 5955's can do it ... HiTec doe not recommend it... for whatever reason.
The issue is the throttle servo as most grab up a "cheaper" servo and again most of them act odd on higher voltage... just a heads up...
http://www.horizonhobby.com/Products...ProdID=SPM1600
Horizon does offer a special unit that prevents the voltage from dropping too low... it's basically a capacitor I think... I just plugs into an open port 9or "Y" I suppose)
It's always better to have a strong electrical system from the get go... but this should prevent the reset (not that any of htese were related to the reset)
I am soon going to be doign some tests on the A123 packs which supposed lay out to 6.8 volts or so unregged... so they might be a great choice....
The prob with unregge'd receivers is the servos... some servos are VERY jiiter and unstable on 7.2+ volts (8 volts fresh charge) and though the 5955's can do it ... HiTec doe not recommend it... for whatever reason.
The issue is the throttle servo as most grab up a "cheaper" servo and again most of them act odd on higher voltage... just a heads up...
http://www.horizonhobby.com/Products...ProdID=SPM1600
#2868
Senior Member
Join Date: May 2003
Location: OCOEE, FL
Posts: 351
Likes: 0
Received 0 Likes
on
0 Posts
RE: Extreme Flight 88" Yak - Build and Fly
Thanks for the invite rdb127! Ormand Beach excursion could be a great experience!
Weather today --- is great for flying webbed feet DUCKS!!
Your baffle picture is a perfect way to eliminate all confusion too!!
I heard a mumble about the huge diameter of the cowl and the 23" swing of the prop. Cowl might cut down on prop efficiency.
I am hesitant to go three blade (at this point) but certain it is needed to make a 1st. class YAK impression.
Thanks
Weather today --- is great for flying webbed feet DUCKS!!
Your baffle picture is a perfect way to eliminate all confusion too!!
I heard a mumble about the huge diameter of the cowl and the 23" swing of the prop. Cowl might cut down on prop efficiency.
I am hesitant to go three blade (at this point) but certain it is needed to make a 1st. class YAK impression.
Thanks
#2870
Senior Member
My Feedback: (29)
Join Date: Sep 2004
Location: marana,
AZ
Posts: 2,729
Likes: 0
Received 0 Likes
on
0 Posts
RE: Extreme Flight 88" Yak - Build and Fly
ORIGINAL: EXTREME FLIGHT
diamondave, it's on the way!!!
diamondave, it's on the way!!!
#2872
My Feedback: (11)
Join Date: Mar 2002
Location: Randolph,
NJ
Posts: 2,313
Likes: 0
Received 0 Likes
on
0 Posts
RE: Extreme Flight 88" Yak - Build and Fly
OMG!! I finished reading the thread!! Took 3days but I finished. I too am wanting one of these. I have the 74 and it's awesome,makes you feel very confident it your abilities. I'm waiting to sell my BME Yak Airframe to order this Yak.. I hope it sells soon so I dont have to wait until August to get the next shipment.
Cya,
Frank
Cya,
Frank
#2873
My Feedback: (19)
Join Date: May 2002
Location: Toronto,
ON, CANADA
Posts: 113
Likes: 0
Received 0 Likes
on
0 Posts
RE: Extreme Flight 88" Yak - Build and Fly
Guys...if one uses a DA-50 with a Bisson pitts style muffler, will the pipes exit the cowl in the same place as it did with the 87", and that was in the oil cooler square at the bottom? also what length stand-offs will I need to order 2.5 or 3" ?
Thanks all
Thanks all
#2874
My Feedback: (22)
Join Date: Aug 2005
Location: , OH
Posts: 141
Likes: 0
Received 0 Likes
on
0 Posts
RE: Extreme Flight 88" Yak - Build and Fly
Can someone tell me the voltage I should recharge my 4 cell nimh ignition battery at under a 1 amp load. I suffered a broken wire on my S.F. ignition regulator last week with my lithium setup and decided to go with a 4cell and no reg to simplify things a bit. I've always used lithiums and am not sure on the recharge voltage on these nimh. Thanks.
#2875
My Feedback: (1)
Join Date: Jul 2004
Location: san leandro,
CA
Posts: 65
Likes: 0
Received 0 Likes
on
0 Posts
RE: Extreme Flight 88" Yak - Build and Fly
I think it should peak around 6.7,6.8. I also run a 4cell nimh on my ignition and I'm charging mine right now to go fly tomorrow. I will see what it peaks at.