tucson

My Feedback: (1)

Hope this helps,
Stan

causeitflies

I did the same thing on my Classic Flash but used an old solid rubber tail wheel cut in half.

Midas D.

@ Stan and Dave,

Got it, lets get the dremel out

Thanks!

Dave Bugz

Dave have you got a picture of the instal for the 140rx fuel pump, you said you mounted it differently. The pump feels quite heavy, just wanna make sure I am putting in the right place.
Ta in advance
Dave

Dave Wilshere

Post 3217 shows more

spike5150

How do you bend the fiberglass strip for the nose gear centering slot? So far I have only been successful at breaking it into shorter pieces. Tried heating it and bending slowly, etc. any tips on getting it bent to that tight radius?

SR117

My piece bent okay...didnt use any special stuff....they must have hardened yours too much

phantom_najd

My Feedback: (2)

It kept breaking with me too until I pulled the heat gun and started heating it and carefully forming it on the former. The tough part was applying the epoxy

You can use fiberglass tape. Apply the finishing resin on the tape and once it becomes tacky but dry bend it on the former and leave it there to completely dry. Actually, now that I am thinking about how easy this is, I wish I had done this myself instead of using the heat gun.

Azzam

ons_pk

Don't need it.

Dave Wilshere

I have not used it since the prototype Classic Flash, but a mug of boiling water...

garyhyde

Dave And the rest of all flash pilots. Are you coming to jets over Kentucky? Would like to meet and fly with you Dave and pick your brain about flying the ultra flash. Ali was here last year and what a great pilot.

Gary

Dave Wilshere

Gary

Would love to, but economy and business means no stateside trips for me. I used to do both the Florida events and many helicopter meetings like the US Nationals in Muncie, those times are long in the past.

I'm sure Ali will be back, he's at more US meetings than UK ones these days! Think he is at FJ now...

spike5150

Thanks for all the suggestions regarding the fiberglass tape. I may just leave it out.

Jeremy

husafreak

My Feedback: (3)

Good news everyone! After quite a wait I heard from CARF regarding my wing. Andreas personally assured me in writing that there will be no strength issues with my wing and that while mine is at the limit of what is acceptable it will be OK. Then Andy my CARF rep sent me a set of longer gear pins and suggested I use spacers to extend the gear legs. I never would have thought of that on my own... The offending main gear needs a 5mm spacer to get the wheel in the well. So ultimately an easy fix and peace of mind. I was so happy I just about finished the wing today. I have been flying my CARF Hawk all winter and having a ball with it but now I feel the need, the need, for speed

dbsonic

My Feedback: (3)

That's great news Eric. Good on CARF for coming through with a solution.

husafreak

My Feedback: (3)

P-40 Brotherhood? I wanna see it!

ons_pk

"The offending main gear needs a 5mm spacer to get the wheel in the well. "

The wing may not be level

I think you will have the side of the wing with 5mm spacer higher then the other

BlueBus320

My Feedback: (57)

Anyone use Jet Tech kevlar saddle tanks? Was just about to order them & figured I'd post the question on here. Also, I've upgraded my P100 to a (detuned to 35lb) K-180G, & I've done some math to figure fuel config times.

CURRENT CONFIG:
Main Tank = 74oz
Wing tank = 47oz
totol of 121oz, K180 at 40lb thrust burns 19.22 a minute meaning I'd have more than 6.29 minutes at full detuned power.

WITH SADDLE TANKS: 58 oz extra
total = 121oz + 58oz= 179oz total which should equate to 9.31min at full 40lb thrust.

Also my plane was 22.5lbs with the P-100, the K180 adds an additional 1.37lbs totaling 23.87lb dry weight
Kero weighs about 6.7lbs a gallon so that is 0.052lbs per ounce, multiplied by 179oz= 9.37lbs of fuel with the main, saddle & wing tanks.
So take off weight should be 23.87+9.37= 33.24LBS
This is how I derived my detuned thrust of 35lbs on my test stand (114000rpm) which I guesstimate should be 1/1 power to weight installed. Although I'd probably be fine at full 40lbs with the bypass removed.

Just FYI stuff, feel free to correct or add any additional or real world info. I don't have wing area info so I can figure wing loading on T/O, but if anyone has real world experience with the K180 or possibly 170, please post tank setup & times you are getting.
Thanks, Jay

husafreak

My Feedback: (3)

Yeah, I am adding 6mm spacers to all three gear legs, thanks.

BlueBus320

My Feedback: (57)

I guess I'll be the guinea pig on the kevlar saddle tanks. I've ordered them & will post a report once installed.

ons_pk

Nice tanks....

With the saddle tanks

take care with the wing bolts

they should be long enough to hold the wing but not to damage the tanks

omer

stevekott

Hey BlueBus320, Barry, a buddy of mine has a 180G it's not de-tuned and it is stupid, crazy fast! I think you will find that your flight time will really come down to throttle management. You can't stay wide open for very long anyway without needing to turn. If you are using all four tanks for fuel you will get a very long flight time. Even if you are on it a lot. On Barry's UF he uses the Wing Tank for smoke oil and he gets a 6 min + flight time.

I use the Carf saddles in mine and have never had any issues with them but I had a friend who was fueling with a little too much pressure and ruptured them. They are at most risk when they become full and get increased back pressure from the taxi tank.. He replaced them with the Jet-Tech tanks and is very happy with them.

+1 on the wing bolts.

Happy Flying,

Steve

Dave Bugz

Omer you finished your Flash. Completed mine at the weekend,just need to balance and set up ( thanks DW) , gonna set it up Wednesday then she is ready. Will post some pictures later in the week. Oooooh getting all excited.
regards
Dave

BlueBus320

My Feedback: (57)

Thanks guys, & Steve that is exactly what I was looking for, confirmation the Jet-tech tanks are the same dimensions as the OEM saddles. I was worried about weight, but figure if others are using all 4 tanks with oil in the wing, then weight will be fine. I'll have plenty of thrust for flap zero takeoffs, but will use flaps 1 just incase I blow the engine on T/O (while heavy) they'll assist with lift. We are not allowed smoke here in NY due to the close proximity to the local airports. For some reason pilots get nervous when they see fast moving projectiles with a smoke trail…go figure..lol Anyways, I plan on removing the bypass to allow use of my FOD screen & maybe make the setup a lil less efficient. That may even help with residual thrust.
Jay

stevekott

Yes I've done them with and without the bypass, doesn't seem to make much difference either way. I would suggest using the one side of the carbon fiber engine cover, on the opposite side of the wing, just as a little added fire protection. It's easy to install and doesn't get in the way of anything. I don't want to start anything on here but I like landing with a little crow in the ailerons and a little less flaps. In that configuration you will land a little more nose up than with the Full Flap no crow configuration. You can deal with residual thrust with a very slightly higher nose.

Too bad about the smoke . This plane is so fast it becomes a little dot quickly and the smoke really helps see it with 'big sky' maneuvers.

This plane handles heavy take-off weight just fine on take-off flaps. With all that fuel I wouldn't be surprised if you get into the 10 minute range. The 180g will actually be more efficient at 1/2 throttle than a smaller engine at full throttle.

Once airborne the UF flies like it is on greased rails. Very stable. The only trick is getting set at the right speed for landing. Too fast and you bounce. But be very careful with too slow at low power. It will snap on you. I lost one at a jet rally to that snap. There were three guys on the runway and I was trying to 'milk' my final until they cleared. Bad Idea , a little more power and I'd have been OK.

You will love this plane, have fun!!