Search: Posts Made By: bob27s
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Forum: Dub Jett Engines Support 02-03-2016, 11:08 AM
Replies: 6
Views: 1,910
Posted By bob27s
Wow.. apologies, I totally missed this post in...

Wow.. apologies, I totally missed this post in here! Looks like it was moved in.

You got some good information.

In general, the performance of the Sport Jett side exhaust engines and the...
Forum: Dub Jett Engines Support 02-03-2016, 11:02 AM
Replies: 11
Views: 3,815
Posted By bob27s
Greetings all -- Just to clarify for everyone --...

Greetings all -- Just to clarify for everyone -- the transition was completed over the Christmas holiday time.

New website address is DUBJETT.COM -- the business address and phone number...
Forum: Extreme Speed Prop Planes 02-03-2016, 10:59 AM
Replies: 3
Views: 1,527
Posted By bob27s
Just to provide a proper update -- the new...

Just to provide a proper update -- the new website DUBJETT.COM is live now. Jett Aerotech continues to have the same phone number, same business and shipping address --

For email, please...
Forum: Extreme Speed Prop Planes 12-28-2015, 07:33 PM
Replies: 16
Views: 2,314
Posted By bob27s
Yep... Web stuff is about done. Should turn it...

Yep... Web stuff is about done. Should turn it live this week.

My apologies for delay.

If something needed... email to jettengr@sbcglobal.net and we can get what you need

Bob
Forum: Dub Jett Engines Support 12-06-2015, 05:00 PM
Replies: 11
Views: 3,815
Posted By bob27s
tomorrow if i can get the friggin thing loaded :)...

tomorrow if i can get the friggin thing loaded :)

i am about a month late now
Forum: Dub Jett Engines Support 11-03-2015, 10:17 AM
Replies: 11
Views: 3,815
Posted By bob27s
nothing critical. Some business re-alignment. ...

nothing critical. Some business re-alignment. No longer identified as an engineering company.
Forum: Extreme Speed Prop Planes 10-30-2015, 10:44 AM
Replies: 3
Views: 1,527
Posted By bob27s
Exclamation JETT - change in the business -- please read

Hi folks......

I posted something in the Jett forum on this, but since I sorta "lived" here in this Extreme Speed forum for years, I wanted to make this announcement here as well.

The JETT...
Forum: Dub Jett Engines Support 10-30-2015, 10:24 AM
Replies: 11
Views: 3,815
Posted By bob27s
Exclamation Jett business is changing October 30th, 2015 -- please read --

Greetings all...

After many years Jett Engineering, Inc is discontinuing operations, and the jettengineering.com web site has been taken off line.

But fear not !

A new business name and a...
Forum: Dub Jett Engines Support 10-30-2015, 10:13 AM
Replies: 2
Views: 1,469
Posted By bob27s
Mac's can provide you the correct header and bolt...

Mac's can provide you the correct header and bolt pattern. Usually use the O-ring header, which should match the OS fan engine
Forum: Dub Jett Engines Support 10-30-2015, 09:59 AM
Replies: 5
Views: 1,190
Posted By bob27s
Hi ... Thanks for writing, and sorry for the...

Hi ... Thanks for writing, and sorry for the delay replying...

You have to ask yourself -- "What changed". If it is breaking the front bolt, it is shaking

Usually if it is breaking the rear...
Forum: Classic RC Pattern Flying 08-03-2015, 04:35 AM
Replies: 1,387
Views: 238,987
Posted By bob27s
Just adding to the view count :)

Just adding to the view count :)
Forum: Dub Jett Engines Support 05-14-2015, 10:08 AM
Replies: 5
Views: 1,190
Posted By bob27s
Hi, and again all.. sorry for the delays.. ...

Hi, and again all.. sorry for the delays..

The Ro-Jett markings were from the crank case manufacture phase. If you have the RC carb, it is a regular BSE .25 engine :) Dub makes the parts...
Forum: Dub Jett Engines Support 05-14-2015, 09:59 AM
Replies: 1
Views: 800
Posted By bob27s
Hi Ed, Sorry for the delay... I had not...

Hi Ed,

Sorry for the delay... I had not checked in here in a few days :)

Hard to post a quote here on parts. And depends on if the crank is salvageable.
Best choice -- send the engine...
Forum: Extreme Speed Prop Planes 03-12-2015, 08:20 AM
Replies: 48
Views: 2,016
Posted By bob27s
True, but you would not want to use the LX...

True, but you would not want to use the LX versions for turning larger props -- sleeve timing is for RPM. The standard timing tends to work better.

Good luck to all of the teams competing...
Forum: Extreme Speed Prop Planes 03-11-2015, 07:52 AM
Replies: 48
Views: 2,016
Posted By bob27s
I just happened to run across this... i guess the...

I just happened to run across this... i guess the thread is a few weeks old. Hopefully I can assist...

You can run the 30% fuel without any issue .... but I suggest using the heli fuel with...
Forum: Extreme Speed Prop Planes 03-11-2015, 07:34 AM
Replies: 630
Views: 27,508
Posted By bob27s
... on purpose :)

... on purpose :)
Forum: Extreme Speed Prop Planes 03-11-2015, 07:21 AM
Replies: 176
Views: 19,577
Posted By bob27s
Lots of things happen when you want to gain...

Lots of things happen when you want to gain speed. Drag goes up with the square of the speed. So works out that you require a large increase in engine power (thrust) to achieve a relatively small...
Forum: Dub Jett Engines Support 03-11-2015, 07:18 AM
Replies: 1
Views: 952
Posted By bob27s
hey there... sorry for the LONG delay on this... ...

hey there... sorry for the LONG delay on this... I had not been getting any notifications on the forum here.

Yes, somewhere around 14,000 to 15,500 is good for the turbojett as a peak rpm. ...
Forum: Dub Jett Engines Support 09-21-2014, 12:35 PM
Replies: 2
Views: 952
Posted By bob27s
Hi Jim .. sorry for delayed reply. .61 big...

Hi Jim .. sorry for delayed reply.

.61 big block engine is rare. Were custom built. But it uses the same jettstream muffler as the .90L.

Rpm range and target is the same as .76 big block. ...
Forum: Dub Jett Engines Support 09-21-2014, 12:26 PM
Replies: 18
Views: 2,720
Posted By bob27s
Hi... Im pretty sure the website has...

Hi...

Im pretty sure the website has something between 17-18000 for rpm target. The muffler is optimized for that range. But yes some folks ran it at higher rpm on occasion.

If you had it...
Forum: Extreme Speed Prop Planes 08-15-2014, 11:17 AM
Replies: 0
Views: 339
Posted By bob27s
Kelly up on marketplace

I put my Kyosho kelly racer F1 up on market place.
There were a couple of threads on this a while back.

I built one, this was the backup- still new in box.

Good flying plane. The 2C...
Forum: Extreme Speed Prop Planes 08-14-2014, 12:35 PM
Replies: 16
Views: 2,314
Posted By bob27s
before i offer them up in general, I have an...

before i offer them up in general, I have an SS40 (caps version) and retired 428 BSE engine that will be for sale shortly. Initial interest, contact me please
Forum: Dub Jett Engines Support 07-28-2014, 04:16 PM
Replies: 3
Views: 841
Posted By bob27s
Thanks...!

Thanks...!
Forum: Extreme Speed Prop Planes 07-25-2014, 07:53 AM
Replies: 16
Views: 2,314
Posted By bob27s
Hi Friends.. Sorry I have not been around...

Hi Friends..

Sorry I have not been around here for a while ... job had me prioritized mostly. And I was not getting my email notifications from here.

Yes, we had a fun time with the...
Forum: Dub Jett Engines Support 07-25-2014, 06:14 AM
Replies: 3
Views: 841
Posted By bob27s
Apologies -- back in the loop here

Hi folks..
My apologies...... work (full time job) had my full attention for a while .... so I am sorry to those who I missed here for questions/support.

Also I was not getting email...
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