Thunderbird mk iv vs mk ii

Matters of general interest
Kalahari pilot
Signed up at flight school
Posts: 24
Joined: Fri Jul 21, 2017 7:40 pm

Thunderbird mk iv vs mk ii

Postby Kalahari pilot » Sun Aug 13, 2017 6:07 pm

What is the difference between the 2 crafts?

Is it only the powerplant that differs or are there other differences? Except for instumentation?

New to flying so would appreciate your help.
User avatar
Le Pou
Passed radio course
Passed radio course
Posts: 71
Joined: Sat Jul 21, 2007 8:04 pm
Location: KRUGERSDORP

Re: Thunderbird mk iv vs mk ii

Postby Le Pou » Tue Aug 15, 2017 8:38 pm

Hi Kalahari Pilot,
Speak to Trevor Davies at 082 four42 three925, he designed and built them (Davies Aircraft Corporation). Also look at his website http://www.tde.co.za
Kalahari pilot
Signed up at flight school
Posts: 24
Joined: Fri Jul 21, 2017 7:40 pm

Re: Thunderbird mk iv vs mk ii

Postby Kalahari pilot » Wed Aug 16, 2017 5:40 pm

Thanks Le Pou

Will give him a call.
User avatar
Luan
First solo
Posts: 82
Joined: Mon Aug 27, 2012 11:47 am

Re: Thunderbird mk iv vs mk ii

Postby Luan » Wed Aug 16, 2017 6:56 pm

When you get the info please report back here... I am also interested in knowing. When asking around about a thunderbird the first thing that is said is "drag-bucket". But that does not say anything, what is the glide ratio? The thunderbird looks a lot like the bantam to me, from the pictures anyways, and I once saw a video from aunty Sue gliding a bantam that was quite impressive.
Kalahari pilot
Signed up at flight school
Posts: 24
Joined: Fri Jul 21, 2017 7:40 pm

Re: Thunderbird mk iv vs mk ii

Postby Kalahari pilot » Fri Aug 18, 2017 8:01 pm

Hi all

Ive calles with no answer and texted with no answer.
The website is also unknown.404

So no info available.
User avatar
Le Pou
Passed radio course
Passed radio course
Posts: 71
Joined: Sat Jul 21, 2007 8:04 pm
Location: KRUGERSDORP

Re: Thunderbird mk iv vs mk ii

Postby Le Pou » Sat Aug 19, 2017 11:10 am

Hi Kalahari Pilot
That is the correct phone number I gave you for Trevor (0824423925), I spoke to him this morning and he told me that the differences go beyond just the engine change. The MK IV has the 912 engine but you need to speak to him yourself to get the detail.
Apparently the MKII and the MKV are the same aircraft except for the engines, both 2-strokes. The MKIV and MKVI have 4-stroke engines and required modifications to the structure.
Kalahari pilot
Signed up at flight school
Posts: 24
Joined: Fri Jul 21, 2017 7:40 pm

Re: Thunderbird mk iv vs mk ii

Postby Kalahari pilot » Sat Aug 19, 2017 12:27 pm

Thanx for the reply..
User avatar
JJJ
Solo cross country
Solo cross country
Posts: 129
Joined: Sat May 30, 2009 8:02 pm
Location: Vanderbijlpark S26 44 246 E027 47 195

Re: Thunderbird mk iv vs mk ii

Postby JJJ » Tue Aug 22, 2017 2:43 pm

The 912 is a heavier engine therefor it has a longer tail boom. The engine is also mounted closer to the wings. in other words the boom is shorter in front.
User avatar
Blue Max
Frequent Flyer
Frequent Flyer
Posts: 1456
Joined: Mon Aug 25, 2008 9:00 pm
Location: Elands River Bush and Quad Camp. Loskop Valey S25 01 55.70 E029 08 02.35

Re: Thunderbird mk iv vs mk ii

Postby Blue Max » Wed Aug 30, 2017 6:42 am

There is a lot to be said about the Thunderbird.!
Perhaps you should rather get the opinion of those who has flown them for a number of hours.
THEY will be the best reference.
My personal opinion is based on only 80 hrs.
Ek praat jou thaal...
Visit www.opencockpit.co.za to read about my Namibiee adventure...
User avatar
Scorpio
Woohoo 100 posts - flying high
Woohoo 100 posts - flying high
Posts: 114
Joined: Sun Jun 08, 2008 8:20 pm
Location: PLM

Re: Thunderbird mk iv vs mk ii

Postby Scorpio » Wed Aug 30, 2017 8:33 pm

`n damn lekker aerie...jy moet net nie haastig wees. hy vlieg vanself, jy moet net die throttle handle.. :lol:
i have one, also flies my friend`s. sal hom nooit verkoop nie!
Kobus..~ Steelpoort Hillbillies s023 ~
User avatar
Luan
First solo
Posts: 82
Joined: Mon Aug 27, 2012 11:47 am

Re: Thunderbird mk iv vs mk ii

Postby Luan » Thu Aug 31, 2017 5:55 am

Dis nice om te hoor van mense wat weet. Wat is die cruise spoed? Hoe klim hy met n' 582 in gauteng op MAUW? My vriend wou een koop met n' 618, en hy is redelik skraal, met die toets vlug kon hulle nie mooi die bome aan die einde van die runway oor kom nie.
User avatar
Scorpio
Woohoo 100 posts - flying high
Woohoo 100 posts - flying high
Posts: 114
Joined: Sun Jun 08, 2008 8:20 pm
Location: PLM

Re: Thunderbird mk iv vs mk ii

Postby Scorpio » Mon Sep 04, 2017 11:12 am

Met `n 618 net lekkerder! Myne het `n 582, ek weeg 115kg en my buddie so 105kg.
Ons runway is 2800ft asl en hy sukkel nie baie om op te kom, so 100m rol om die krag drade op die einde te clear.
Wens myne was `n 618 :mrgreen:
Kobus..~ Steelpoort Hillbillies s023 ~

Who is online

Users browsing this forum: No registered users and 2 guests